Search Results

Search found 30724 results on 1229 pages for 'backup solution'.

Page 230/1229 | < Previous Page | 226 227 228 229 230 231 232 233 234 235 236 237  | Next Page >

• Can a non-redundant RAID5 cause any serious problems (compared to RAID0)?

  - by leemes

  I used to have a three-disc RAID5 (mdadm) in my computer for personal media storage (music, videos, photos, programs, games, ...). It had three discs with 750 GB each, resulting in an array capacity of 1.5 TB. One day (one year ago), I needed one of those discs to install another operating system. I thought, I don't need the redundancy anymore since I backup the most important stuff (personal photos e.g.) on an external disc anyway. So I decided to remove one of the three discs without converting the RAID to RAID0 or even two separate discs, because I had no temporary storage (since one cannot simply convert the RAID5 to RAID0 AFAIK). So now, for about one year, I have a non-redundant RAID5 with 2 of 3 discs running. Sometimes, one of the discs has a defective contact at the power cable or something similar causing the drive to stop working temporarily (I don't know exactly what it is). Since it still works when rebooting the computer and in most cases by calling some mdadm commands, it wasn't that problematic. Note that the data is not very critical, since I still have a backup of the most important stuff. But in the last few weeks, one of the drives fails very frequently (every few hours), so it gets really annoying to manage this. My questions are: Is there any disadvantage (apart from the annoying management) of a non-redundant RAID5 (with one drive less than typical) over a RAID0? If I understand it correctly, both have no redundancy and the same capacity. On a temporary drive failure, I can restart the array in both cases, assuming that the drive itself still works after the failure. Can it happen that the drive contents alter on a drive failure, making the array inconsistent? If so, can I tell mdadm to check the array for failures (without a file system level checking tool)? Since the drive most probably only has a defective contact causing it to fail for a second only, can I tell mdadm to automatically restart the array, so I will not even notice the failure if no application wanted to access the file system during the failure?

  Read the article

• Restore a database with LDF file only

  - by Martin

  First of all, i know how stupid it is not to have a any backup. I can't help it, but i have to (try) to solve it. I have a transaction log (LDF) file from a SQL Server 2000 database that contains all transactions since the creation of the database. No truncation has been done. The MDF file is gone. Probably because of some disk failure. There is no backup. Not from the original database and not from the transaction log. I have tried to link the transaction log to a new clean database. But (ofcourse) that failed because SQL Server checks the identity of both files. I have read about software that can read the transaction log. ApexSQL seems to do that. I tried to install the trial version but it gives weird errors when trying to start the program. Anyone knows a solution for me? It may contain third party software, but i prefer a clean SQL Server solution.

  Read the article

• SBS 2008 Sharepoint Database good Memory Limit.

  - by ldelgado

  I manage a small network running on Small Business Server 2008. Lately, the Sharepoint embedded database is getting out of control with its memory usage. I've got a total of 16 GB of RAM on this server, and the Sharepoint database sometimes uses almost 8 GB of RAM. This never happened before, and it started happening after I installed Backup Exec 2010. It happens after a backup is performed. So I suspect there is a memory leak involved. I am working on that issue, but this question isn't about that. I would like to limit the amount of memory the Embedded database uses. I know how to do it. My question is, what would be the ideal amount of memory that I can allocate to Sharepoint? There are only 4 users on my network. One of the users uses two computers but not at the same time. They use sharepoint for a company calendar, and sometimes they share files that way also. Let me know if you need to know anything else. Thanks,

  Read the article

• Apache with multiple domains, single IP, VirtualHost is catching the wrong traffic

  - by apuschak

  I have a SOAP web service I am providing on a apache web server. There are 6 different clients (IPs) that request data and 3 of them are hitting the wrong domain. I am trying to find a way to log which domain name the requests are coming from. Details: ServerA is the primary ServerB is the backup domain1.com - the domain the web service is on domain2.com - a seperate domain that server seperate content on ServerB ServerA is standalone for now with its own IP and DNS from domain1.com. This works for everyone. ServerB is a backup for the web service, but it already hosts domain2.com. I added entries into the apache configuration file like: <VirtualHost *:443> ServerName domain2.com DocumentRoot /var/www/html/ CustomLog logs/access_log_domain2443 common ErrorLog logs/ssl_error_log_domain2443 LogLevel debug SSLEngine on ... etc SSL directives ... </VirtualHost> I have these for both 80 and 443 for domain1 and domain2 with domain1 being second. The problem is when we switch DNS for domain1 from ServerA to ServerB, 3 out of the 6 clients show up in the debug logs as hitting domain2.com instead of domain1.com and fail their web service request because domain2.com is first in the apache configuration file and catching all requests that don't match other virtualhosts, namely domain1.com. I don't know if they are hitting www.domain1.com, domain1.com (although I added entries for both) or using the external IP address or something else. Is there a way to see which URL they are hitting not just the page request or someother way to see why the first domain is catching traffic meant for the second listed domain? In the meantime, I've put domain1.com higher in the apache configuration than domain2.com. Now it catches the requests for all clients and works, however I don't know what it is catching and would like to make domain2.com the first entry again with a correct entry for domain1.com, for however they are hitting it. Thank you for your help! Andrew

  Read the article

• Efficient mirroring of directories using hardlinks

  - by zoqaeski

  I'm backing up my music collection on to a number of NTFS-formatted external hard-drives; however, as I store my main collection in FLAC and have my library on my laptop as MP3s to save space, I want to be able to back up both sets, because mass conversion between formats is time-consuming. The "music" directory can contain any format; the "mp3s" directory contains only MP3s converted from files in the "music" directory. The music collection on the laptop contains only MP3s, but they come from both sources. When I backup my laptop's library to the "mp3s" directory, I want to only copy across MP3 files that don't exist in the "music" directory; those that do should be hard-linked to the "music" directory. All directories have an identical hierarchy, sorted by artist, album, date, discnumber if applicable, etc, and I use a tagging editor to ensure consistency across all these locations. I'm also using a Linux computer, but keeping the music collections on NTFS-formatted partitions so that they are readable by both Linux and Windows. At the moment, I use the following command to perform the backups, but this is time-consuming due to the expensive nature of finding hard links. rsync -avu --progress --relative --ignore-existing --link-dest=../music/ **/*.mp3 /media/ntfspocket/mp3s Is there a way to perform this backup more efficiently, taking advantage of the directory hierarchy?

  Read the article

• Having an issue trying to get Gigabit speed across my network (Ubuntu Server)

  - by user94217

  I've just started looking into the network speeds at my office, the entire network is setup to be "Gigabit". This includes Gb switches, Gb Network cards and Cat 5e cabling. I'm not expecting the full speed, I just want more than ~90 Mb/s. I've been running some tests with iperf the linux tools and checking the hardware with ethtool. I have 3 servers and when doing my checks/test I discovered that the two backup servers can access each other at around 450 Mb/s but when using either one of them to connect and test the main server, I only get the 90Mb/s even though ethtool shows the networking card running at 1000/Full. The only difference between all the server/networking cards is the "Port" which ethtool shows. On the two backup servers the "Port" is shown as MII yet on the other it's shown as "Twisted Pair". When using ethtool -s to manually set the "Port" to MII on the main server, it looses all connectivity and does not show "Speed" or "Duplex". Anyway, Am i doing something wrong? Is there a specific reason my main server cannot use Gb when there appears to be no difference except the "Port"?

  Read the article

• Best format for hard drive for Windows and Mac?

  - by Neil

  I have a 500 GB USB External Hard Drive. I need four partitions on it, for the following purposes: 160 GB for a bootable backup of my Mac. 160 GB for a bootable backup of my Windows. 11 GB for a bootable Snow Leopard Install Disk Rest as for file storage. Now I need a partition table which will get recognised on both Windows and Mac, without needing extra software on Windows, which will let me keep bootable copies of both OS'es, but let me access the file storage from both OS'es. Currently, I have a GUI Partition Table, with Mac OS Extended (Journaled) Partitions for the two backups, Mac OS Extended for the Install Disk, and NTFS for the file storage. While this gets recognised perfectly on my Mac, thanks to an NTFS for Mac driver from Paragon, when connected to Windows, the drive is detected by the machine (listed in Safely Remove USB), but not recognised in Windows Explorer unless I install MacDrive, which is not feasible for me to install on public Windows Machines I might wanna access my storage area on. Can someone recommend the best combination of formats and software/drivers to get this done seamlessly?

  Read the article

• I (stupidly) converted a TrueCrypt encrypted disk to GPT in Disk Management: now TrueCrypt won't mount it

  - by asilentfire

  Backstory: After moving a Macrium Reflect disk image from my TrueCrypt external drive (with whole disk encryption) onto a unencrypted drive and using Windows PE with Macrium Reflect to restore my internal disk to the recovery image on the external unencrypted drive, my Windows 8 failed to boot. I then went back and also recovered the System Partition (looking now, it is currently EFI), but I still couldn't boot into my backup.. I was in a hurry to get online for something so I just did a clean install of Windows 8, without the backup.. After I installed Windows 8, I went into Disk Management out of curiosity to see if there were other partitions with Windows 8 that Macruim might have missed, and there is (by default) a Recovery Partition of 100MB. My memory of this is hazy, as I was trying to get up and running for an exam at 4 AM: Something in Disk Management prompted me to convert my encrypted external drive to GPT.. I have no idea why I did this, but I went ahead and allowed it to convert my TrueCrypt drive to GPT. Now, I can't mount the drive in TrueCrypt.. Disk Management sees it as Disk 1, Basic, and Unallocated. I tried converting it back to MBR with Disk Management, but no dice with TrueCrypt :( If I try to mount the disk in TrueCrypt I get the message: Incorrect password or not a TrueCrypt volume I should never have messed with a Truecrypt drive in Disk Management, but I did. I have important college work in that drive, and fear I have lost it forever. PLEASE HELP

  Read the article

• Where's my free space gone? (on my mac) [closed]

  - by Cawas

  Possible Duplicate: Something’s slowly eating my HD space Somehow part of my files from my USB disk, 40GB of it (exactly the space I was missing), were copied to /Volumes/ and when I mounted the disk it was called "600GB Disk 2", while "600GB Disk" was filled with duplicated data. All that happened at once, slowly, just this morning when I turned on my macbook. I could notice that thanks to Disk Inventory X. I could actually see those on GrandPerspective, but I thought it was just scanning my USB limited to that folder for whatever reason. On Disk Inventory I could see the /Volumes/ listing one folder as a folder and the second one as a link, like it should be. Well, looking at that folder, I quickly associated what was in it with my scheduled backup on Carbon Copy Cloner. I'm still not sure why the USB disk was mounted with wrong name, but what happened was CCC store the full path information of the source and destination, so when it tried to do the schedule backup it created the path that didn't exist, and copied everything there - while it should be copying into the mounted volume. While this is solved this time, what else could I have done to diagnose this kind of issue, for the next time?

  Read the article

• How to avoid duplicates when copying files that have been renamed at the destination

  - by Benoitt

  I have to get pictures from a folder – with subfolders which are updated automatically – with their extensions. These files have to be copied in a folder where a website based on PHP will edit them (by renaming and creating an XML file) to be downloadable and integrated in an XML feed. Because of the rename function of the script, when I perform the copy gain, all the files are duplicated, because the script has renamed the original ones already. I've tried a few things with rsync but I'm looking for something more powerful because I can't copy files with an external "history". #!/bin/bash find '/home/name/picture' -name '*.jpg' | while read FILE ; do rsync --backup --backup-dir=incremental --suffix=.old "$FILE" /var/www/media ; done wget --spider 'http://myscript.php' ; #exit 0 PS: As a little addition, I'd like to replace '.' with a 'space' just after the *.jpeg copy. My PHP script has some problem to define files with comma because of the extension. I'm finking about a command with find – like I did before – with a sed function? Is that a good idea?

  Read the article

• Specific issue on data pump API in oracle

  - by Median Hilal

  I have a client/server architecture. Using an Oracle dbms on the database server side. I need to perform a user-triggered (from client side) backup of the database, where the best way to perform that is using a stored procedure on the server side which the client may call, as the client has no oracle tools to perform the backup. I've searched thorough inside available solutions and have found that using a stored procedure is the best way. Well, then I found that using oracle data pump API is the best way to use inside a PL/SQl stored procedure. My specific questions about the API are... I would like to ask about two issues ... ---- The first ----- the detach function to detach the handler, is it necessary to be used at the end of the procedure? and what if I don't use it? I read the Oracle documentation but I didn't get their point, they say it doesn't terminate the job but indicates that the user is not interested in it, an when I use detach at the end of my procedure the exported .dmp file disappears. ---- The second ----- to perform a user (client side) triggered back up as the modification are only to the data, I used TABLE parameter for the export operation. But the version parameter... what should it be? I also read the documentation but couldn't determine what I need (LATEST or COMPATIBLE) ? Thanks

  Read the article

• 5 year old server upgrade

  - by rizzo0917

  I am looking to upgrade a server for a web app. Currently the application is running very sluggish. We've made some adjustments to mysql (that's another issue in itself) and made some adjustments so that heaviest quires get run on a copy of the database on another server was have as a backup, however this will not last that much longer and we are looking to upgrade. Currently the servers CPUs are (4) Intel(R) XEON(TM) CPU 2.00GHz, with 1 gig of ram. The database is 442.5 MiB, with about 1,743,808 records. There are two parts of the program, the one, side a, inserts and updates most of the data. Side b, reads the data and does some minor updates. Currently our biggest day for side a are 800 users (of 40,000 users all year) imputing the system. And our Side b is currently unknown, however we have a total of 1000 clients. The system is most likely going to cap out at 5000 side b clients, with about a year 300,000 side a users. The current database is 5 years old, so we can most likely expect the database to grow pretty rapidly, possibly double each year (which we can most likely archive older records if it comes to that). So with that being said, should we get a server for each side of the app, side a being the master, side b being the slave, any updates made on side b are router to side a. So the question is should i get 2 of these or 1. 2 x Intel Nehalem Xeon E5520 2.26Ghz (8 Cores) 12GB DDRIII Memory 500GB SATAII HDD 100Mbps Port Speed And Naturally I would need to have a redundant backup so it could potentially be 4 of them.

  Read the article

• buagent process has been consuming 100% cpu for two days

  - by Maysam

  The buagent process has been using 100% of cpu since two days ago. I want to terminate this process but I don't know if it's something dangerous or not (I am not much advanced in working with linux, indeed I am very beginner). The only thing that I know is that this process is probably restoring some files. But I think it is not normal for that to take more than two days. Now, do you think it would be OK if I kill this process? What command could I use to do that? I appreciate any help :) p.s. We are hosting a few web sites there. This server is also our Name Server and Mail Server as well. A couple of months a go we had a problem with the server which made us to take a full-backup of all files and then reinstall linux. Yesterday, I selected one of the directories on the backup server and restored that directory to a tmp directory on our linux server. After that, I couldn't restore any other directory because every time I want to do that, it says that there is another restore job running and I have to wait for that. When I use the "top" command I can see that the buagent process is consuming 100% of cpu. So I guess that is the problem. I don't know why it has been taking too long to execute.

  Read the article

• How can I restore the registry keys from another C drive? (Windows 7 64bit)

  - by graham3d

  I ran Uniblue registry booster on my system which was working fine. It did a full back up of the registry keys. Now I cannot boot from that disk. I also cannot get into the BIOS! To restore the registry I have to run Uniblue registry booster from within windows. I cannot get there. I can boot up on another C drive, and can see the files on the drive with the problem. Is there any way I can find the Registry Booster backup files and restore it from the other disk? Or find the registry backup and upload it into the registry so I can boot off the other disk again? Or, Can I do a windows repair from the other disk? NB: not getting in to the bios means I cannot boot off the CD/DVD! (I can use the DVD drive from within windows) Any ideas? I do not want to reinstall everything yet again, it takes about 6 hours.

  Read the article

• Efficient mirroring of directories using hard links [closed]

  - by zoqaeski

  I'm backing up my music collection on to a number of NTFS-formatted external hard-drives; however, as I store my main collection in FLAC and have my library on my laptop as MP3s to save space, I want to be able to back up both sets, because mass conversion between formats is time-consuming. The "music" directory can contain any format; the "mp3s" directory contains only MP3s converted from files in the "music" directory. The music collection on the laptop contains only MP3s, but they come from both sources. When I backup my laptop's library to the "mp3s" directory, I want to only copy across MP3 files that don't exist in the "music" directory; those that do should be hard-linked to the "music" directory. All directories have an identical hierarchy, sorted by artist, album, date, discnumber if applicable, etc, and I use a tagging editor to ensure consistency across all these locations. I'm also using a Linux computer, but keeping the music collections on NTFS-formatted partitions so that they are readable by both Linux and Windows. At the moment, I use the following command to perform the backups, but this is time-consuming due to the expensive nature of finding hard links. rsync -avu --progress --relative --ignore-existing --link-dest=../music/ **/*.mp3 /media/ntfspocket/mp3s Is there a way to perform this backup more efficiently, taking advantage of the directory hierarchy?

  Read the article

• very diferent results from df after few seconds

  - by tatus2

  When the backup moves the files from one to the other server the results from df changing every some seconds in impossible manner. On source host is running rsync. On destination host I'm running every few seconds following command: echo `date` `df|grep md0` Results are below: Sat Jun 29 23:57:12 CEST 2013 /dev/md0 4326425568 579316100 3527339636 15% /MD0 Sat Jun 29 23:57:14 CEST 2013 /dev/md0 4326425568 852513700 3254142036 21% /MD0 Sat Jun 29 23:57:15 CEST 2013 /dev/md0 4326425568 969970340 3136685396 24% /MD0 Sat Jun 29 23:57:17 CEST 2013 /dev/md0 4326425568 1255222180 2851433556 31% /MD0 Sat Jun 29 23:57:20 CEST 2013 /dev/md0 4326425568 1276006720 2830649016 32% /MD0 Sat Jun 29 23:57:24 CEST 2013 /dev/md0 4326425568 1355440016 2751215720 34% /MD0 Sat Jun 29 23:57:26 CEST 2013 /dev/md0 4326425568 1425090960 2681564776 35% /MD0 Sat Jun 29 23:57:27 CEST 2013 /dev/md0 4326425568 1474601872 2632053864 36% /MD0 Sat Jun 29 23:57:28 CEST 2013 /dev/md0 4326425568 1493627384 2613028352 37% /MD0 Sat Jun 29 23:57:32 CEST 2013 /dev/md0 4326425568 615934400 3490721336 15% /MD0 Sat Jun 29 23:57:33 CEST 2013 /dev/md0 4326425568 636071360 3470584376 16% /MD0 as you can see I start from USE of 15% and after 15 seconds I'm at 37% (I don't need to mention that the backup can not copy this huge amount of data in so short time). After ~20 sec the cycle closes. I'm again roughly by the same usage as earlier. The value is reasonable ca. 35 Mb were copied. Can somebody explain me what is going on? Does df only make an estimation of usage instead of used value?

  Read the article

• Downloading Emails locally with Thunderbird

  - by r_honey

  I am using Gmail (web interface) for sometime now, and have well over 20 labels and some thousand mails there archived to different labels in Gmail. Now I want to have a local copy of all my mails and following points are important in the context: The Primary mail access mechanism would continue to be Gmail web for me. I just want a backup of my mail account locally. Ideally the mails should download locally in folders named after Gmail labels (I know this is possible via IMAP but probably not by POP) After all my mails are available locally, I will delete most of them in Gmail to free up space and because I want to archive them. The mails should continue to exist locally and should not be deleted when I delete when from Gmail web interface. I would be syncing my gmail account locally let's say every month. So, the new mails that I have sent/received during this period should come over to my local mailbox in the folders named after Gmail labels. I do understand that Gmail maintains a single copy of email having 2 different labels and such email would get duplicated locally in the 2 folders and I am okay with that. Essentially you can see I just want to archive my mails from the Gmail server to a local backup and then sync (one way from Gmail to locally) new mails at regular intervals. For some points above, POP seems to be the option while IMAP seems for the others. I am really confused and need help in deciding which of POP or IMAP would suit me best. I have currently chosen Thunderbird to be my local email client but would not have a problem switching to Outlook or anything else as long as I get my desired archiving functionality.

  Read the article

• Iptables and system-config-firewall

  - by nivde92

  I had a set of netfilter rules set with iptables, but someone else told me to use system-config-firewall to add a rule for sharing files with Windows. (Samba) This rewrote the iptables rules file and I lost my own custom rules. I have a backup copy, but am having trouble restoring them. Edit: The server is Centos, I already tried to restore the rules with iptables-restore < /root/working.iptables.rules but for some reason the rules don't change. What are you trying to do? Trying to restore the iptable rules that I have in a backup file. What have you tried in order to make it happen? I've tried to modify the iptables file with vim, since the command iptables-restore was no help. What results did you expect? To get the old rules back. What actually happened? Nothing, when I run the command or edit the file by hand the file doesn't change at all. Maybe something else it's overwriting.

  Read the article

• BKF file corruption

  - by Naitik Semwaal

  I don't wanna ask anything here as I have nothing to ask. Instead of that, if I share some useful info here, would you guys mind? If not, then let me proceed. You must have heard about "Back up", the process in which we create backup copies of our crucial data into a file, called BKF (backup) file. Having a valid BKF file, provides security to our data against unwanted data loss or corruption. Whenever such a critical situation takes place, we can restore our BKF file and get our data back (but only if backed up earlier). Do you guys ever thought that why a BKF file gets corrupted? What could be the reasons which make the BKF file corrupted or inaccessible? One day while googling, I found a blog post named as: Reasons of BKF file corruption. I read it, it was very informative. In this blog, I came to know about the reasons for corruption in BKF files. I shared the blog here so that users can read it and clear their doubts of BKF file corruption. I hope this would be helpful.

  Read the article

• Very diferent results from df after a few seconds

  - by tatus2

  When the backup moves the files from one server to the other the results from df change every few seconds in an impossible manner. The source host is running rsync. On the destination host I'm running the following command every few seconds: echo `date` `df|grep md0` Results are below: Sat Jun 29 23:57:12 CEST 2013 /dev/md0 4326425568 579316100 3527339636 15% /MD0 Sat Jun 29 23:57:14 CEST 2013 /dev/md0 4326425568 852513700 3254142036 21% /MD0 Sat Jun 29 23:57:15 CEST 2013 /dev/md0 4326425568 969970340 3136685396 24% /MD0 Sat Jun 29 23:57:17 CEST 2013 /dev/md0 4326425568 1255222180 2851433556 31% /MD0 Sat Jun 29 23:57:20 CEST 2013 /dev/md0 4326425568 1276006720 2830649016 32% /MD0 Sat Jun 29 23:57:24 CEST 2013 /dev/md0 4326425568 1355440016 2751215720 34% /MD0 Sat Jun 29 23:57:26 CEST 2013 /dev/md0 4326425568 1425090960 2681564776 35% /MD0 Sat Jun 29 23:57:27 CEST 2013 /dev/md0 4326425568 1474601872 2632053864 36% /MD0 Sat Jun 29 23:57:28 CEST 2013 /dev/md0 4326425568 1493627384 2613028352 37% /MD0 Sat Jun 29 23:57:32 CEST 2013 /dev/md0 4326425568 615934400 3490721336 15% /MD0 Sat Jun 29 23:57:33 CEST 2013 /dev/md0 4326425568 636071360 3470584376 16% /MD0 As you can see I start from USE of 15% and after 15 seconds I'm at 37% (I don't need to mention that the backup can not copy this huge amount of data in such a short time). After ~20 seconds the cycle closes. I'm again roughly at the same usage as earlier. The value is reasonable, ca. 35 Mb were copied. Can somebody explain to me what is going on? Does df only make an estimation of usage instead of used value?

  Read the article

• Generating a twitter OAuth access key - the semi-manual way

  - by Piet

  [UPDATE] Apparently someone at Twitter was listening, or I’m going senile/blind. Let’s call it a combination of both. Instead of following all the steps below, you could just login with the Twitter account you want to use on http://dev.twitter.com, register your application and then click ‘Edit Details’ on the application overview page at http://dev.twitter.com/apps. Next click the ‘Application detail’ button on the right, followed by the ‘My Access Token’ button in order to get your Access Token and Access Token Secret. This makes the old post below rather obsolete. Clearly a case of me thinking everything is a nail and ruby is a hammer (don’t they usually say this about java coders?) [ORIGINAL POST] OAuth is great! OAuth allows your application to use your user’s data without the need to ask for their password. So Twitter made the API much safer for their and your users. Hurray! Free pizza for everyone! Unless of course you’re using the Twitter API for your own needs like running your own bot and don’t need access to other user’s data. In such cases a simple username/password combination is more than enough. I can understand however that the Twitter guys don’t really care that much about these exceptions(?). Most such uses for the API are probably rather spammy in nature. !!! If you have a twitter app that uses the API to access external user’s data: look for another solution. This solution is ONLY meant when you ONLY need access to your own account(s) through the API. Other Solutions Mr Dallas Devries posted a solution here which involves requesting and scraping a one-time PIN. But: I like to minimize the amount of calls I make to twitter’s API or pages to lessen my chances of meeting the fail whale. Also, as soon as the pin isn’t included in a div called ‘oauth_pin’ anymore, this will fail. However, mr Devries’ post was a starting point for my solution, so I’m much obliged to him posting his findings. Authenticating with the Twitter API: old vs new Acessing The Twitter API the old way: require ‘twitter’ httpauth = Twitter::HTTPAuth.new('my_account','my_secret_password') client = Twitter::Base.new(httpauth) client.update(‘Hurray!’) The OAuth way: require 'twitter' oauth = Twitter::OAuth.new('ve4whatafuzzksaMQKjoI', 'KliketyklikspQ6qYALcuNandsomemored8pQ6qYALIG7mbEQY') oauth.authorize_from_access('123-owhfmeyAgfozdyt5hDeprSevsWmPo5rVeroGfsthis', 'fGiinCdqtehMeehiddenymDeAsasaawgGeryye8amh') client = Twitter::Base.new(oauth) client.update(‘Hurray!’) In the above case, ve4whatafuzzksaMQKjoI is the ‘consumer key’ (sometimes also referred to as ‘consumer token’) and KliketyklikspQ6qYALcuNandsomemored8pQ6qYALIG7mbEQY is the ‘consumer secret’. You’ll get these from Twitter when you register your app. 123-owhfmeyAgfozdyt5hDeprSevsWmPo5rVeroGfsthis is the ‘access token’ and fGiinCdqtehMeehiddenymDeAsasaawgGeryye8amh is the ‘access secret’. This combination gives the registered application access to your account. I’ll show you how to obtain these by following the steps below. (Basically you’ll need a bunch of keys and you’ll have to jump a bit through hoops to obtain them for your server/bot. ) How to get these keys 1. Surf to the twitter apps registration page go to http://dev.twitter.com/apps to register your app. Login with your twitter account. 2. Register your application Enter something for Application name, Description, website,… as I said: they make you jump through hoops. If you plan on using the API to post tweets, Your application name and website will be used in the ‘5 minutes ago via…’ line below your tweet. You could use the this to point to a page with info about your bot, or maybe it’s useful for SEO purposes. For application type I choose ‘browser’ and entered http://www.hadermann.be/callback as a ‘Callback URL’. This url returns a 404 error, which is ideal because after giving our account access to our ‘application’ (step 6), it will redirect to this url with an ‘oauth_token’ and ‘oauth_verifier’ in the url. We need to get these from the url. It doesn’t really matter what you enter here though, you could leave it blank because you need to explicitely specify it when generating a request token. You probably want read&write access so set this at ‘Default Access type’. 3. Get your consumer key and consumer secret On the next page, copy/paste your ‘consumer key’ and ‘consumer secret’. You’ll need these later on. You also need these as part of the authentication in your script later on: oauth = Twitter::OAuth.new([consumer key], [consumer secret]) 4. Obtain your request token run the following in IRB to obtain your ‘request token’ Replace my fake consumer key and consumer secret with the one you obtained in step 3. And use something else instead http://www.hadermann.be/callback: although this will only give a 404, you shouldn’t trust me. irb(main):001:0> require 'oauth' irb(main):002:0> c = OAuth::Consumer.new('ve4whatafuzzksaMQKjoI', 'KliketyklikspQ6qYALcuNandsomemored8pQ6qYALIG7mbEQY', {:site => 'http://twitter.com'}) irb(main):003:0> request_token = c.get_request_token(:oauth_callback => 'http://www.hadermann.be/callback') irb(main):004:0> request_token.token => "UrperqaukeWsWt3IAlfbxzyBUFpwWIcWkHP94QH2C1" This (UrperqaukeWsWt3IAlfbxzyBUFpwWIcWkHP94QH2C1) is the request token: Copy/paste this token, you will need this next. 5. Authorize your application surf to https://api.twitter.com/oauth/authorize?oauth_token=[the above token], for example: https://api.twitter.com/oauth/authorize?oauth_token=UrperqaukeWsWt3IAlfbxzyBUFpwWIcWkHP94QH2C1 This will bring you to the ‘An application would like to connect to your account’- screen on Twitter where you can grant access to the app you just registered. If you aren’t still logged in, you need to login first. Click ‘Allow’. Unless you don’t trust yourself. 6. Get your oauth_verifier from the redirected url Your browser will be redirected to your callback url, with an oauth_token and oauth_verifier parameter appended. You’ll need the oauth_verifier. In my case the browser redirected to: http://www.hadermann.be/callback?oauth_token=UrperqaukeWsWt3IAlfbxzyBUFpwWIcWkHP94QH2C1&oauth_verifier=waoOhKo8orpaqvQe6rVi5fti4ejr8hPeZrTewyeag Which returned a 404, giving me the chance to copy/paste my oauth_verifier: waoOhKo8orpaqvQe6rVi5fti4ejr8hPeZrTewyeag 7. Request an access token Back to irb, use the oauth_verifier to request an access token, as follows: irb(main):005:0> at = request_token.get_access_token(:oauth_verifier => 'waoOhKo8orpaqvQe6rVi5fti4ejr8hPeZrTewyeag') irb(main):006:0> at.params[:oauth_token] => "123-owhfmeyAgfozdyt5hDeprSevsWmPo5rVeroGfsthis" irb(main):007:0> at.params[:oauth_token_secret] => "fGiinCdqtehMeehiddenymDeAsasaawgGeryye8amh" We’re there! 123-owhfmeyAgfozdyt5hDeprSevsWmPo5rVeroGfsthis is the access token. fGiinCdqtehMeehiddenymDeAsasaawgGeryye8amh is the access secret. Try it! Try the following to post an update: require 'twitter' oauth = Twitter::OAuth.new('ve4whatafuzzksaMQKjoI', 'KliketyklikspQ6qYALcuNandsomemored8pQ6qYALIG7mbEQY') oauth.authorize_from_access('123-owhfmeyAgfozdyt5hDeprSevsWmPo5rVeroGfsthis', 'fGiinCdqtehMeehiddenymDeAsasaawgGeryye8amh') client = Twitter::Base.new(oauth) client.update(‘Cowabunga!’) Now you can go to your twitter page and delete the tweet if you want to.

  Read the article

• Introducing Oracle VM Server for SPARC

  - by Honglin Su

  As you are watching Oracle's Virtualization Strategy Webcast and exploring the great virtualization offerings of Oracle VM product line, I'd like to introduce Oracle VM Server for SPARC --  highly efficient, enterprise-class virtualization solution for Sun SPARC Enterprise Systems with Chip Multithreading (CMT) technology. Oracle VM Server for SPARC, previously called Sun Logical Domains, leverages the built-in SPARC hypervisor to subdivide supported platforms' resources (CPUs, memory, network, and storage) by creating partitions called logical (or virtual) domains. Each logical domain can run an independent operating system. Oracle VM Server for SPARC provides the flexibility to deploy multiple Oracle Solaris operating systems simultaneously on a single platform. Oracle VM Server also allows you to create up to 128 virtual servers on one system to take advantage of the massive thread scale offered by the CMT architecture. Oracle VM Server for SPARC integrates both the industry-leading CMT capability of the UltraSPARC T1, T2 and T2 Plus processors and the Oracle Solaris operating system. This combination helps to increase flexibility, isolate workload processing, and improve the potential for maximum server utilization. Oracle VM Server for SPARC delivers the following: Leading Price/Performance - The low-overhead architecture provides scalable performance under increasing workloads without additional license cost. This enables you to meet the most aggressive price/performance requirement Advanced RAS - Each logical domain is an entirely independent virtual machine with its own OS. It supports virtual disk mutipathing and failover as well as faster network failover with link-based IP multipathing (IPMP) support. Moreover, it's fully integrated with Solaris FMA (Fault Management Architecture), which enables predictive self healing. CPU Dynamic Resource Management (DRM) - Enable your resource management policy and domain workload to trigger the automatic addition and removal of CPUs. This ability helps you to better align with your IT and business priorities. Enhanced Domain Migrations - Perform domain migrations interactively and non-interactively to bring more flexibility to the management of your virtualized environment. Improve active domain migration performance by compressing memory transfers and taking advantage of cryptographic acceleration hardware. These methods provide faster migration for load balancing, power saving, and planned maintenance. Dynamic Crypto Control - Dynamically add and remove cryptographic units (aka MAU) to and from active domains. Also, migrate active domains that have cryptographic units. Physical-to-virtual (P2V) Conversion - Quickly convert an existing SPARC server running the Oracle Solaris 8, 9 or 10 OS into a virtualized Oracle Solaris 10 image. Use this image to facilitate OS migration into the virtualized environment. Virtual I/O Dynamic Reconfiguration (DR) - Add and remove virtual I/O services and devices without needing to reboot the system. CPU Power Management - Implement power saving by disabling each core on a Sun UltraSPARC T2 or T2 Plus processor that has all of its CPU threads idle. Advanced Network Configuration - Configure the following network features to obtain more flexible network configurations, higher performance, and scalability: Jumbo frames, VLANs, virtual switches for link aggregations, and network interface unit (NIU) hybrid I/O. Official Certification Based On Real-World Testing - Use Oracle VM Server for SPARC with the most sophisticated enterprise workloads under real-world conditions, including Oracle Real Application Clusters (RAC). Affordable, Full-Stack Enterprise Class Support - Obtain worldwide support from Oracle for the entire virtualization environment and workloads together. The support covers hardware, firmware, OS, virtualization, and the software stack. SPARC Server Virtualization Oracle offers a full portfolio of virtualization solutions to address your needs. SPARC is the leading platform to have the hard partitioning capability that provides the physical isolation needed to run independent operating systems. Many customers have already used Oracle Solaris Containers for application isolation. Oracle VM Server for SPARC provides another important feature with OS isolation. This gives you the flexibility to deploy multiple operating systems simultaneously on a single Sun SPARC T-Series server with finer granularity for computing resources.  For SPARC CMT processors, the natural level of granularity is an execution thread, not a time-sliced microsecond of execution resources. Each CPU thread can be treated as an independent virtual processor. The scheduler is naturally built into the CPU for lower overhead and higher performance. Your organizations can couple Oracle Solaris Containers and Oracle VM Server for SPARC with the breakthrough space and energy savings afforded by Sun SPARC Enterprise systems with CMT technology to deliver a more agile, responsive, and low-cost environment. Management with Oracle Enterprise Manager Ops Center The Oracle Enterprise Manager Ops Center Virtualization Management Pack provides full lifecycle management of virtual guests, including Oracle VM Server for SPARC and Oracle Solaris Containers. It helps you streamline operations and reduce downtime. Together, the Virtualization Management Pack and the Ops Center Provisioning and Patch Automation Pack provide an end-to-end management solution for physical and virtual systems through a single web-based console. This solution automates the lifecycle management of physical and virtual systems and is the most effective systems management solution for Oracle's Sun infrastructure. Ease of Deployment with Configuration Assistant The Oracle VM Server for SPARC Configuration Assistant can help you easily create logical domains. After gathering the configuration data, the Configuration Assistant determines the best way to create a deployment to suit your requirements. The Configuration Assistant is available as both a graphical user interface (GUI) and terminal-based tool. Oracle Solaris Cluster HA Support The Oracle Solaris Cluster HA for Oracle VM Server for SPARC data service provides a mechanism for orderly startup and shutdown, fault monitoring and automatic failover of the Oracle VM Server guest domain service. In addition, applications that run on a logical domain, as well as its resources and dependencies can be controlled and managed independently. These are managed as if they were running in a classical Solaris Cluster hardware node. Supported Systems Oracle VM Server for SPARC is supported on all Sun SPARC Enterprise Systems with CMT technology. UltraSPARC T2 Plus Systems ·   Sun SPARC Enterprise T5140 Server ·   Sun SPARC Enterprise T5240 Server ·   Sun SPARC Enterprise T5440 Server ·   Sun Netra T5440 Server ·   Sun Blade T6340 Server Module ·   Sun Netra T6340 Server Module UltraSPARC T2 Systems ·   Sun SPARC Enterprise T5120 Server ·   Sun SPARC Enterprise T5220 Server ·   Sun Netra T5220 Server ·   Sun Blade T6320 Server Module ·   Sun Netra CP3260 ATCA Blade Server Note that UltraSPARC T1 systems are supported on earlier versions of the software.Sun SPARC Enterprise Systems with CMT technology come with the right to use (RTU) of Oracle VM Server, and the software is pre-installed. If you have the systems under warranty or with support, you can download the software and system firmware as well as their updates. Oracle Premier Support for Systems provides fully-integrated support for your server hardware, firmware, OS, and virtualization software. Visit oracle.com/support for information about Oracle's support offerings for Sun systems. For more information about Oracle's virtualization offerings, visit oracle.com/virtualization.

  Read the article

• Issue 15: The Benefits of Oracle Exastack

  - by rituchhibber

       SOLUTIONS FOCUS The Benefits of Oracle Exastack Paul ThompsonDirector, Alliances and Solutions Partner ProgramsOracle EMEA Alliances & Channels RESOURCES -- Oracle PartnerNetwork (OPN) Oracle Exastack Program Oracle Exastack Ready Oracle Exastack Optimized Oracle Exastack Labs and Enablement Resources Oracle Exastack Labs Video Tour SUBSCRIBE FEEDBACK PREVIOUS ISSUES Exastack is a revolutionary programme supporting Oracle independent software vendor partners across the entire Oracle technology stack. Oracle's core strategy is to engineer software and hardware together, and our ISV strategy is the same. At Oracle we design engineered systems that are pre-integrated to reduce the cost and complexity of IT infrastructures while increasing productivity and performance. Oracle innovates and optimises performance at every layer of the stack to simplify business operations, drive down costs and accelerate business innovation. Our engineered systems are optimised to achieve enterprise performance levels that are unmatched in the industry. Faster time to production is achieved by implementing pre-engineered and pre-assembled hardware and software bundles. Our strategy of delivering a single-vendor stack simplifies and reduces costs associated with purchasing, deploying, and supporting IT environments for our customers and partners. In parallel to this core engineered systems strategy, the Oracle Exastack Program enables our Oracle ISV partners to leverage a scalable, integrated infrastructure that delivers their applications tuned, tested and optimised for high-performance. Specifically, the Oracle Exastack Program helps ISVs run their solutions on the Oracle Exadata Database Machine, Oracle Exalogic Elastic Cloud, and Oracle SPARC SuperCluster T4-4 - integrated systems products in which the software and hardware are engineered to work together. These products provide OPN members with a lower cost and high performance infrastructure for database and application workloads across on-premise and cloud based environments. Ready and Optimized Oracle Partners can now leverage our new Oracle Exastack Program to become Oracle Exastack Ready and Oracle Exastack Optimized. Partners can achieve Oracle Exastack Ready status through their support for Oracle Solaris, Oracle Linux, Oracle VM, Oracle Database, Oracle WebLogic Server, Oracle Exadata Database Machine, Oracle Exalogic Elastic Cloud, and Oracle SPARC SuperCluster T4-4. By doing this, partners can demonstrate to their customers that their applications are available on the latest major releases of these products. The Oracle Exastack Ready programme helps customers readily differentiate Oracle partners from lesser software developers, and identify applications that support Oracle engineered systems. Achieving Oracle Exastack Optimized status demonstrates that an OPN member has proven itself against goals for performance and scalability on Oracle integrated systems. This status enables end customers to readily identify Oracle partners that have tested and tuned their solutions for optimum performance on an Oracle Exadata Database Machine, Oracle Exalogic Elastic Cloud, and Oracle SPARC SuperCluster T4-4. These ISVs can display the Oracle Exadata Optimized, Oracle Exalogic Optimized or Oracle SPARC SuperCluster Optimized logos on websites and on all their collateral to show that they have tested and tuned their application for optimum performance. Deliver higher value to customers Oracle's investment in engineered systems enables ISV partners to deliver higher value to customer business processes. New innovations are enabled through extreme performance unachievable through traditional best-of-breed multi-vendor server/software approaches. Core product requirements can be launched faster, enabling ISVs to focus research and development investment on core competencies in order to bring value to market as quickly as possible. Through Exastack, partners no longer have to worry about the underlying product stack, which allows greater focus on the development of intellectual property above the stack. Partners are not burdened by platform issues and can concentrate simply on furthering their applications. The advantage to end customers is that partners can focus all efforts on business functionality, rather than bullet-proofing underlying technologies, and so will inevitably deliver application updates faster. Exastack provides ISVs with a number of flexible deployment options, such as on-premise or Cloud, while maintaining one single code base for applications regardless of customer deployment preference. Customers buying their solutions from Exastack ISVs can therefore be confident in deploying on their own networks, on private clouds or into a public cloud. The underlying platform will support all conceivable deployments, enabling a focus on the ISV's application itself that wouldn't be possible with other vendor partners. It stands to reason that Exastack accelerates time to value as well as lowering implementation costs all round. There is a big competitive advantage in partners being able to offer customers an optimised, pre-configured solution rather than an assortment of components and a suggested fit. Once a customer has decided to buy an Oracle Exastack Ready or Optimized partner solution, it will be up and running without any need for the customer to conduct testing of its own. Operational costs and complexity are also reduced, thanks to streamlined customer support through standardised configurations and pro-active monitoring. 'Engineered to Work Together' is a significant statement of Oracle strategy. It guarantees smoother deployment of a single vendor solution, clear ownership with no finger-pointing and the peace of mind of the Oracle Support Centre underpinning the entire product stack. Next steps Every OPN member with packaged applications must seriously consider taking steps to become Exastack Ready, or Exastack Optimized at the first opportunity. That first step down the track is to talk to an expert on the OPN Portal, at the Oracle Partner Business Center or to discuss the next steps with the closest Oracle account manager. Oracle Exastack lab environments and other technical enablement resources are available for OPN members wishing to further their knowledge of Oracle Exastack and qualify their applications for Oracle Exastack Optimized. New Boot Camps and Guided Learning Paths (GLPs), tailored specifically for ISVs, are available for Oracle Exadata Database Machine, Oracle Exalogic Elastic Cloud, Oracle Linux, Oracle Solaris, Oracle Database, and Oracle WebLogic Server. More information about these GLPs and Boot Camps (including delivery dates and locations) are posted on the OPN Competency Center and corresponding OPN Knowledge Zones. Learn more about Oracle Exastack labs and ISV specific enablement resources. "Oracle Specialized partners are of course front-and-centre, with potential customers clearly directed to those partners and to Exadata Ready partners as a matter of priority." --More OpenWorld 2011 highlights for Oracle partners and customers Oracle Application Testing Suite 9.3 application testing solution for Web, SOA and Oracle Applications Oracle Application Express Release 4.1 improving the development of database-centric Web 2.0 applications and reports Oracle Unified Directory 11g helping customers manage the critical identity information that drives their business applications Oracle SOA Suite for healthcare integration Oracle Enterprise Pack for Eclipse 11g demonstrating continued commitment to the developer and open source communities Oracle Coherence 3.7.1, the latest release of the industry's leading distributed in-memory data grid Oracle Process Accelerators helping to simplify and accelerate time-to-value for customers' business process management initiatives Oracle's JD Edwards EnterpriseOne on the iPad meeting the increasingly mobile demands of today's workforces Oracle CRM On Demand Release 19 Innovation Pack introducing industry-leading hosted call centre and enterprise-marketing capabilities designed to drive further revenue and productivity while reducing costs and improving the customer experience Oracle's Primavera Portfolio Management 9 for businesses delivering on project portfolio goals with increased versatility, transparency and accuracy Oracle's PeopleSoft Human Capital Management (HCM) 9.1 On Demand Standard Edition helping customers manage their long-term investment in enterprise-wide business applications New versions of Oracle FLEXCUBE Universal Banking and Oracle FLEXCUBE Investor Servicing for Financial Institutions, as well as Oracle Financial Services Enterprise Case Management, Oracle Financial Services Pricing Management, Oracle Financial Management Analytics and Oracle Tax Analytics Oracle Utilities Network Management System 1.11 offering new modelling and analysis features to improve distribution-grid management for electric utilities Oracle Communications Network Charging and Control 4.4 helping communications service providers (CSPs) offer their customers more flexible charging options Plus many, many more technology announcements, enhancements, momentum news and community updates -- Oracle OpenWorld 2012 A date has already been set for Oracle OpenWorld 2012. Held once again in San Francisco, exhibitors, partners, customers and Oracle people will gather from 30 September until 4 November to meet, network and learn together with the rest of the global Oracle community. Register now for Oracle OpenWorld 2012 and save $$$! We'll reward your early planning for Oracle OpenWorld 2012 with reduced rates. Super Saver deals are now available! -- Back to the welcome page

  Read the article

• Cloud MBaaS : The Next Big Thing in Enterprise Mobility

  - by shiju

  In this blog post, I will take a look at Cloud Mobile Backend as a Service (MBaaS) and how we can leverage Cloud based Mobile Backend as a Service for building enterprise mobile apps. Today, mobile apps are incredibly significant in both consumer and enterprise space and the demand for the mobile apps is unbelievably increasing in day to day business. An enterprise can’t survive in business without a proper mobility strategy. A better mobility strategy and faster delivery of your mobile apps will give you an extra mileage for your business and IT strategy. So organizations and mobile developers are looking for different strategy for meeting this demand and adopting different development strategy for their mobile apps. Some developers are adopting hybrid mobile app development platforms, for delivering their products for multiple platforms, for fast time-to-market. Others are adopting a Mobile enterprise application platform (MEAP) such as Kony for their enterprise mobile apps for fast time-to-market and better business integration. The Challenges of Enterprise Mobility The real challenge of enterprise mobile apps, is not about creating the front-end environment or developing front-end for multiple platforms. The most important thing of enterprise mobile apps is to expose your enterprise data to mobile devices where the real pain is your business data might be residing in lot of different systems including legacy systems, ERP systems etc., and these systems will be deployed with lot of security restrictions. Exposing your data from the on-premises servers, is not a easy thing for most of the business organizations. Many organizations are spending too much time for their front-end development strategy, but they are really lacking for building a strategy on their back-end for exposing the business data to mobile apps. So building a REST services layer and mobile back-end services, on the top of legacy systems and existing middleware systems, is the key part of most of the enterprise mobile apps, where multiple mobile platforms can easily consume these REST services and other mobile back-end services for building mobile apps. For some mobile apps, we can’t predict its user base, especially for products where customers can gradually increase at any time. And for today’s mobile apps, faster time-to-market is very critical so that spending too much time for mobile app’s scalability, will not be worth. The real power of Cloud is the agility and on-demand scalability, where we can scale-up and scale-down our applications very easily. It would be great if we could use the power of Cloud to mobile apps. So using Cloud for mobile apps is a natural fit, where we can use Cloud as the storage for mobile apps and hosting mechanism for mobile back-end services, where we can enjoy the full power of Cloud with greater level of on-demand scalability and operational agility. So Cloud based Mobile Backend as a Service is great choice for building enterprise mobile apps, where enterprises can enjoy the massive scalability power of their mobile apps, provided by public cloud vendors such as Microsoft Windows Azure. Mobile Backend as a Service (MBaaS) We have discussed the key challenges of enterprise mobile apps and how we can leverage Cloud for hosting mobile backend services. MBaaS is a set of cloud-based, server-side mobile services for multiple mobile platforms and HTML5 platform, which can be used as a backend for your mobile apps with the scalability power of Cloud. The information below provides the key features of a typical MBaaS platform: Cloud based storage for your application data. Automatic REST API services on the application data, for CRUD operations. Native push notification services with massive scalability power. User management services for authenticate users. User authentication via Social accounts such as Facebook, Google, Microsoft, and Twitter. Scheduler services for periodically sending data to mobile devices. Native SDKs for multiple mobile platforms such as Windows Phone and Windows Store, Android, Apple iOS, and HTML5, for easily accessing the mobile services from mobile apps, with better security.  Typically, a MBaaS platform will provide native SDKs for multiple mobile platforms so that we can easily consume the server-side mobile services. MBaaS based REST APIs can use for integrating to enterprise backend systems. We can use the same mobile services for multiple platform so hat we can reuse the application logic to multiple mobile platforms. Public cloud vendors are building the mobile services on the top of their PaaS offerings. Windows Azure Mobile Services is a great platform for a MBaaS offering that is leveraging Windows Azure Cloud platform’s PaaS capabilities. Hybrid mobile development platform Titanium provides their own MBaaS services. LoopBack is a new MBaaS service provided by Node.js consulting firm StrongLoop, which can be hosted on multiple cloud platforms and also for on-premises servers. The Challenges of MBaaS Solutions If you are building your mobile apps with a new data storage, it will be very easy, since there is not any integration challenges you have to face. But most of the use cases, you have to extract your application data in which stored in on-premises servers which might be under VPNs and firewalls. So exposing these data to your MBaaS solution with a proper security would be a big challenge. The capability of your MBaaS vendor is very important as you have to interact with your legacy systems for many enterprise mobile apps. So you should be very careful about choosing for MBaaS vendor. At the same time, you should have a proper strategy for mobilizing your application data which stored in on-premises legacy systems, where your solution architecture and strategy is more important than platforms and tools.  Windows Azure Mobile Services Windows Azure Mobile Services is an MBaaS offerings from Windows Azure cloud platform. IMHO, Microsoft Windows Azure is the best PaaS platform in the Cloud space. Windows Azure Mobile Services extends the PaaS capabilities of Windows Azure, to mobile devices, which can be used as a cloud backend for your mobile apps, which will provide global availability and reach for your mobile apps. Windows Azure Mobile Services provides storage services, user management with social network integration, push notification services and scheduler services and provides native SDKs for all major mobile platforms and HTML5. In Windows Azure Mobile Services, you can write server-side scripts in Node.js where you can enjoy the full power of Node.js including the use of NPM modules for your server-side scripts. In the previous section, we had discussed some challenges of MBaaS solutions. You can leverage Windows Azure Cloud platform for solving many challenges regarding with enterprise mobility. The entire Windows Azure platform can play a key role for working as the backend for your mobile apps where you can leverage the entire Windows Azure platform for your mobile apps. With Windows Azure, you can easily connect to your on-premises systems which is a key thing for mobile backend solutions. Another key point is that Windows Azure provides better integration with services like Active Directory, which makes Windows Azure as the de facto platform for enterprise mobility, for enterprises, who have been leveraging Microsoft ecosystem for their application and IT infrastructure. Windows Azure Mobile Services  is going to next evolution where you can expect some exciting features in near future. One area, where Windows Azure Mobile Services should definitely need an improvement, is about the default storage mechanism in which currently it is depends on SQL Server. IMHO, developers should be able to choose multiple default storage option when creating a new mobile service instance. Let’s say, there should be a different storage providers such as SQL Server storage provider and Table storage provider where developers should be able to choose their choice of storage provider when creating a new mobile services project. I have been used Windows Azure and Windows Azure Mobile Services as the backend for production apps for mobile, where it performed very well. MBaaS Over MEAP Recently, many larger enterprises has been adopted Mobile enterprise application platform (MEAP) for their mobile apps. I haven’t worked on any production MEAP solution, but I heard that developers are really struggling with MEAP in different way. The learning curve for a proprietary MEAP platform is very high. I am completely against for using larger proprietary ecosystem for mobile apps. For enterprise mobile apps, I highly recommend to use native iOS/Android/Windows Phone or HTML5  for front-end with a cloud hosted MBaaS solution as the middleware. A MBaaS service can be consumed from multiple mobile apps where REST APIs are using to integrating with enterprise backend systems. Enterprise mobility should start with exposing REST APIs on the enterprise backend systems and these REST APIs can host on Cloud where we can enjoy the power of Cloud for our services. If you are having REST APIs for your enterprise data, then you can easily build mobile frontends for multiple platforms.   You can follow me on Twitter @shijucv

  Read the article

• Keeping track of File System Utilization in Ops Center 12c

  - by S Stelting

  Enterprise Manager Ops Center 12c provides significant monitoring capabilities, combined with very flexible incident management. These capabilities even extend to monitoring the file systems associated with Solaris or Linux assets. Depending on your needs you can monitor and manage incidents, or you can fine tune alert monitoring rules to specific file systems. This article will show you how to use Ops Center 12c to Track file system utilization Adjust file system monitoring rules Disable file system rules Create custom monitoring rules If you're interested in this topic, please join us for a WebEx presentation! Date: Thursday, November 8, 2012 Time: 11:00 am, Eastern Standard Time (New York, GMT-05:00) Meeting Number: 598 796 842 Meeting Password: oracle123 To join the online meeting ------------------------------------------------------- 1. Go to https://oracleconferencing.webex.com/oracleconferencing/j.php?ED=209833597&UID=1512095432&PW=NOWQ3YjJlMmYy&RT=MiMxMQ%3D%3D 2. If requested, enter your name and email address. 3. If a password is required, enter the meeting password: oracle123 4. Click "Join". To view in other time zones or languages, please click the link: https://oracleconferencing.webex.com/oracleconferencing/j.php?ED=209833597&UID=1512095432&PW=NOWQ3YjJlMmYy&ORT=MiMxMQ%3D%3D   Monitoring File Systems for OS Assets The Libraries tab provides basic, device-level information about the storage associated with an OS instance. This tab shows you the local file system associated with the instance and any shared storage libraries mounted by Ops Center. More detailed information about file system storage is available under the Analytics tab under the sub-tab named Charts. Here, you can select and display the individual mount points of an OS, and export the utilization data if desired: In this example, the OS instance has a basic root file partition and several NFS directories. Each file system mount point can be independently chosen for display in the Ops Center chart. File Systems and Incident  Reporting Every asset managed by Ops Center has a "monitoring policy", which determines what represents a reportable issue with the asset. The policy is made up of a bunch of monitoring rules, where each rule describes An attribute to monitor The conditions which represent an issue The level or levels of severity for the issue When the conditions are met, Ops Center sends a notification and creates an incident. By default, OS instances have three monitoring rules associated with file systems: File System Reachability: Triggers an incident if a file system is not reachable NAS Library Status: Triggers an incident for a value of "WARNING" or "DEGRADED" for a NAS-based file system File System Used Space Percentage: Triggers an incident when file system utilization grows beyond defined thresholds You can view these rules in the Monitoring tab for an OS: Of course, the default monitoring rules is that they apply to every file system associated with an OS instance. As a result, any issue with NAS accessibility or disk utilization will trigger an incident. This can cause incidents for file systems to be reported multiple times if the same shared storage is used by many assets, as shown in this screen shot: Depending on the level of control you'd like, there are a number of ways to fine tune incident reporting. Note that any changes to an asset's monitoring policy will detach it from the default, creating a new monitoring policy for the asset. If you'd like, you can extract a monitoring policy from an asset, which allows you to save it and apply the customized monitoring profile to other OS assets. Solution #1: Modify the Reporting Thresholds In some cases, you may want to modify the basic conditions for incident reporting in your file system. The changes you make to a default monitoring rule will apply to all of the file systems associated with your operating system. Selecting the File Systems Used Space Percentage entry and clicking the "Edit Alert Monitoring Rule Parameters" button opens a pop-up dialog which allows you to modify the rule. The first screen lets you decide when you will check for file system usage, and how long you will wait before opening an incident in Ops Center. By default, Ops Center monitors continuously and reports disk utilization issues which exist for more than 15 minutes. The second screen lets you define actual threshold values. By default, Ops Center opens a Warning level incident is utilization rises above 80%, and a Critical level incident for utilization above 95% Solution #2: Disable Incident Reporting for File System If you'd rather not report file system incidents, you can disable the monitoring rules altogether. In this case, you can select the monitoring rules and click the "Disable Alert Monitoring Rule(s)" button to open the pop-up confirmation dialog. Like the first solution, this option affects all file system monitoring. It allows you to completely disable incident reporting for NAS library status or file system space consumption. Solution #3: Create New Monitoring Rules for Specific File Systems If you'd like to have the greatest flexibility when monitoring file systems, you can create entirely new rules. Clicking the "Add Alert Monitoring Rule" (the icon with the green plus sign) opens a wizard which allows you to define a new rule.  This rule will be based on a threshold, and will be used to monitor operating system assets. We'd like to add a rule to track disk utilization for a specific file system - the /nfs-guest directory. To do this, we specify the following attribute FileSystemUsages.name=/nfs-guest.usedSpacePercentage The value of name in the attribute allows us to define a specific NFS shared directory or file system... in the case of this OS, we could have chosen any of the values shown in the File Systems Utilization chart at the beginning of this article. usedSpacePercentage lets us define a threshold based on the percentage of total disk space used. There are a number of other values that we could use for threshold-based monitoring of FileSystemUsages, including freeSpace freeSpacePercentage totalSpace usedSpace usedSpacePercentage The final sections of the screen allow us to determine when to monitor for disk usage, and how long to wait after utilization reaches a threshold before creating an incident. The next screen lets us define the threshold values and severity levels for the monitoring rule: If historical data is available, Ops Center will display it in the screen. Clicking the Apply button will create the new monitoring rule and active it in your monitoring policy. If you combine this with one of the previous solutions, you can precisely define which file systems will generate incidents and notifications. For example, this monitoring policy has the default "File System Used Space Percentage" rule disabled, but the new rule reports ONLY on utilization for the /nfs-guest directory. Stay Connected: Twitter |  Facebook |  YouTube |  Linkedin |  Newsletter

  Read the article

< Previous Page | 226 227 228 229 230 231 232 233 234 235 236 237  | Next Page >