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  • Storage Technology for the Home User

    <b>Linux Magazine:</b> "Sometimes you just have to get excited about what you can buy, hold in your hand, and use in your home machines. Let's look at some cool storage technology that the average desktop user can tackle."

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  • ??????Oracle Automatic Storage Management???·????????

    - by Yusuke.Yamamoto
    ????? ??:2010/03/01 ??:???? Oracle Database ?????? Automatic Storage Management(ASM) ? Oracle Database 10g ?????????Oracle ASM ? Oracle Database ?????????????·????????????·????????????????????????????????????????Oracle ASM ????????????????·?????????????????????????? ??????·???????????????·??????????????????????ASRU ???????ASRU ???????????? ????????? ????????????????? http://www.oracle.com/technetwork/jp/database/1005200-oracle-asm-and-tr-321865-ja.pdf

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  • How do you set a "Document class" from an SWC in Flash CS4?

    - by Flash Challenge
    I have an SWC with a class called Content. I want to set it as the "Document Class" in Flash. However, after setting up the SWC in the .fla, I am receiving an error message saying that "A definition for the document class could not be found in the classpath,..." Setting up the direct class folder works fine, but I need to distribute this SWC and do not want to include the sources. Is it possible to use a class as the Document Class if it resides in an SWC? I've found some links that seem to indicate no, but I need to find out definitively. http://balazs.sebesteny.com/document-class-from-swc/ forums.adobe.com/thread/452045

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  • How to organise storage for media content such as video and music?

    - by thor
    Currently, we have a single server hosting all content: music, video and software. This content is downloaded by users through HTTP. Now free space is coming to an end and we are exploring different ways of extending our storage capacity. We want to do it cheap, simple and reliable (protected from disk/ server faults). Currenly, we see two ways: Add a couple of cheap servers with 4 disks (RAID1 ?), run some distributed file-system on top, like GlusterFS. Pros: hopefully, we will see all our disks as single flat file system, just dump content into it and be done. Cons: could be tricky in configuration and handling of faults. Add a couple of cheap servers, all running HTTP servers. Each piece of content (be it a music file or video) is placed on randomly selected two servers. Pros: don't have to deal with RAID, as content is duplicated; single server failure does not bring down any part of content; doubled distribution capacity (as any signle file could be downloaded from any of two servers hosting it). Cons: requires some scripting on part of distribution of content, adding/ removing servers. Do we miss any other ways? Which of the aforementioned options seems to be the best?

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  • setup lowcost image storage server with 24x SSD array to get high IOPS?

    - by Nenad
    I want to build let's name it a lowcost Ra*san which would host for our social site the images (many millions) we have 5 sizes of every photo with 3 KB, 7 KB, 15 KB, 25 KB and 80 KB per Image. My idea is to build a Server with 24x consumer 240 GB SSD's in Raid 6 which will give me some 5 TB Disk space for the photo storage. To have HA I can add a 2nd one and use drdb. I'm looking to get above 150'000 IOPS (4K Random reads). As we mostly have read access only and rarely delete photos i think to go with consumer MLC SSD. I read many endurance reviews and don't see there a problem as long we don't rewrite the cells. What you think about my idea? - I'm not sure between Raid 6 or Raid 10 (more IOPS, cost SSD). - Is ext4 OK for the filesystem - Would you use 1 or 2 Raid controller, with Extender Backplane If anyone has realized something similar i would be happy to get Real World numbers. UPDATE I have buy 12 (plus some spare) OCZ Talos 480GB SAS SSD Drive's they will be placed in a 12-bay DAS and attached to a PERC H800 (1GB NV Cache, manufactured by LSI with fastpath) Controller, I plan to setup Raid 50 with ext4. If someone is wondering about some benchmarks let me know what you would like to see.

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  • How can I remove all drivers and other files related to a USB Mass Storage device?

    - by Bob
    I have a flash drive here that does not work on one OS on computer - let's call it the desktop Windows 7. It works fine on another computer - laptop Windows 7. It also works fine on Windows 8 on the same desktop computer. Other flash drives work fine under desktop Windows 7. So not a hardware issue, not a generic USB Mass Storage driver issue. It's something specific to this drive. On desktop Windows 7, I can connect the drive but no volume comes up under Windows Explorer. Ditto for Disk Management. With diskpart, loading hangs until I unplug the drive, if I replug it and try list disk it hangs again. If I unplug the drive at this point, list disk prints out all attached drives - including the just removed flash drive. The drive consistently appears under Device Manager, but uninstalling the drivers, restarting and reinstalling the drivers (by inserting the drive) only works for the first insertion. After that it fails again. I get the feeling that the driver files are not actually removed, and are corrupted, meaning every reinstall it's the same corrupted drivers being installed. Is there any way to remove these drivers completely? Or perhaps some other setting Windows 7 retains? Formatting the drive through another computer/OS does not help. I've also tried a complete wipe and rebuild of the MBR and single partition. The allocation unit size makes no difference; neither does a NTFS format. This is a relatively small matter, and I would not like to reinstall the entire OS!

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  • Exemplars of large document-centric applications with COM/XPCOM/.NET interfaces.

    - by Warren P
    I am looking for exemplars (design examples) showing the use of interfaces (aka 'protocols' for you smalltalkers) to design a document management architecture in a large Word Processor, Spreadsheet, vector graphic or publishing package, or office-productivity (non-database) application with support for as many of the following as possible: any open source project, will be ideal, and language of implementation is unimportant since I am looking for design examples, however an object oriented language with support for "interfaces" is a must. I know at least a dozen languages, and I'm willing to study any application's source. use of "interface" could loosely be applied to either XPCOM or COM interfaces, or .NET interfaces, or even the use of pure-virtual (virtual+abstract) base-classes for OOP languages that lack the ability to declare an interface distinct from a class. I am mostly looking for a robust, thorough and flexible implementation for a document, IDocument, various document views (IDocumentView), and whatever operations make sense in that case. I am particular interested in cases where the product in question is a real-world product. For example, if anybody familiar with OpenOffice can tell me if the code contains a good sample design. I am looking for design documentation that outlines the design of the interfaces for such an application. So for example, if the openoffice spreadsheet has such an interface design, then that might be the best case, because it is a widely used real-world design, with millions of users, rather than a textbook example, which is minimal, and contrived. I know that the Mozilla platform uses XPCOM, and its design is heavily "interface" oriented, but I am looking more for a "word processor" or "spreadsheet" type of document design, rather than a web-browser. I am particularly interested in the interfaces used to access to data and meta-data such as markup (attributes like bold, and italics, and font size), and the ability to search and look up named entities within a document.

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  • Data storage advice needed: Best way to store location + time data?

    - by sobedai
    I have a project in mind that will require the majority of queries to be keyed off of lat/long as well as date + time. Initially, I was thinking of a standard RDBMS where lat, long, and the datetime field are properly indexed. Then, I began thinking of a document based system where the document was essentially a timestamp and each document has lat/long with in it. Each document could have n objects associated with it. I'm looking for advice on what would be the best type of storage engine for this sort of thing is - which of the above idea would be better or if there is something else completely that is the ideal solution. Thanks

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  • Noob with git repository on Windows Storage Server 2008?

    - by HibbyHoo
    I have a Western Digital Sentinel at home running Windows Storage Server 2008 R2 Essentials. I have several git repositories on it for my own personal projects, and have no problem pushing and pulling over my local network. I want to be able to access those repos remotely from anywhere. I am able to log in and remotely access folders and files on it, but I cannot clone repos using the same address. It hangs for a REALLY long time before finally failing with an error: git.exe clone --progress -v "https://myIpAddressHere/Remote/fs/files.aspx?path=%5C%5Cmydevicename%5Cmyreposfolder%5Cmyrepo.git" "D:\repo" Cloning into 'D:\repo'... error: Failed connect to myIpAddress:443; No error while accessing https://myIpAddress/Remote/fs/files.aspx?path=%5C%5Cmydevicename%5Cmyreposfolder%5Cmyrepo.git/info/refs fatal: HTTP request failed git did not exit cleanly (exit code 128) I'm not too privy to networking or web development, and I have only a rudimentary understanding of how to use git (with TortoiseGit). I'm having a hard time finding search results for this specific problem and a hard time interpreting generic tutorials for the general scope of this problem. TortoiseGit version: 1.7.13.0. git version: 1.7.10.mysysgit.1.

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  • New Project Starting. Got Gas?

    - by merrillaldrich
    “Storage is just like gasoline,” said a fellow DBA at the office the other day. This DBA, Mike is his name, is one of the smartest people I know, so I pressed him, in my subtle and erudite way, to elaborate. “Um, whut?” I said. “Yeah. Now that everything is shared – VMs or consolidated SQL Servers and shared storage – if you want to do a big project, like, say, drive to Vegas, you better fill the car with gas. Drive back and forth to work every day? Gas. Same for storage.” This was a light-bulb-above-my-head...(read more)

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  • Is there a Distributed SAN/Storage System out there?

    - by Joel Coel
    Like many other places, we ask our users not to save files to their local machines. Instead, we encourage that they be put on a file server so that others (with appropriate permissions) can use them and that the files are backed up properly. The result of this is that most users have large hard drives that are sitting mainly empty. It's 2010 now. Surely there is a system out there that lets you turn that empty space into a virtual SAN or document library? What I envision is a client program that is pushed out to users' PCs that coordinates with a central server. The server looks to users just like a normal file server, but instead of keeping entire file contents it merely keeps a record of where those files can be found among various user PCs. It then coordinates with the right clients to serve up file requests. The client software would be able to respond to such requests directly, as well as be smart enough to cache recent files locally. For redundancy the server could make sure files are copied to multiple PCs, perhaps allowing you to define groups in different locations so that an instance of the entire repository lives in each group to protect against a disaster in one building taking down everything else. Obviously you wouldn't point your database server here, but for simpler things I see several advantages: Files can often be transferred from a nearer machine. Disk space grows automatically as your company does. Should ultimately be cheaper, as you don't need to keep a separate set of disks I can see a few downsides as well: Occasional degradation of user pc performance, if the machine has to serve or accept a large file transfer during a busy period. Writes have to be propogated around the network several times (though I suspect this isn't really much of a problem, as reading happens in most places more than writing) Still need a way to send a complete copy of the data offsite occasionally, and this would make it very hard to do differentials Think of this like a cloud storage system that lives entirely within your corporate LAN and makes use of your existing user equipment. Our old main file server is due for retirement in about 2 years, and I'm looking into replacing it with a small SAN. I'm thinking something like this would be a better fit. As a school, we have a couple computer labs I can leave running that would be perfect for adding a little extra redundancy to the system. Unfortunately, the closest thing I can find is Dienst, and it's just a paper that dates back to 1994. Am I just using the wrong buzzwords in my searches, or does this really not exist? If not, is there a big downside that I'm missing?

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  • Mounting a Mail Store that is in a Recovery Storage group On Exchange 2003

    - by Kyle Brandt
    If I have a production server with the Mail Store Foo in both the storage group companyName and the Recovery Storage Group, is it okay to Mount Foo in the RSG while it is mounted in companyName so I can extract some mailboxs from the recovery storage group? Basically I am wonder if it is okay to mount it in both Production and the Recovery Storage Groups while the mail server is in production and the particular mail store is in production. Reference: "Once an RSG is restored into and mounted up you can connect to it with ExMerge and read out mailboxes into PST files for merging back into a 'live' store" -- http://serverfault.com/questions/49728/test-restore-of-exchange-dbs-with-the-ms-exchange-plugin-of-netbackup-6

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  • Using mixed disks and OpenFiler to create RAID storage

    - by Cylindric
    I need to improve my home storage to add some resilience. I currently have four disks, as follows: D0: 500Gb (System, Boot) D1: 1Tb D2: 500Gb D3: 250Gb There's a mix of partitions on there, so it's not JBOD, but data is pretty spread out and not redundant. As this is my primary PC and I don't want to give up the entire OS to storage, my plan is to use OpenFiler in a VM to create a virtual SAN. I will also use Windows Software RAID to mirror the OS. Partitions will be created as follows: D0 P1: 100Mb: System-Reserved Boot D0 P2: 50Gb: Virtual Machine VMDKs for OS D0 P3: 350Gb: Data D1 P1: 100Mb: System-Reserved Boot D1 P2: 50Gb: Virtual Machine VMDKs for OS D1 P3: 800Gb: Data D2 P1: 450Gb: Data D3 P1: 200Gb: Data This will result in: Mirrored boot partition Mirrored Operating system Mirrored Virtual machine O/S disks Four partitions for data In the four data partitions I will create several large VMDK files, which I will "mount" into OpenFiler as block-storage devices, combined into three RAID arrays (due to the differing disk sizes) In effect, I'll end up with the following usable partitions SYSTEM 100Mb the small boot partition created by the Windows 7 installer (RAID-1) HOST 50Gb the Windows 7 partition (RAID-1) GUESTS 50Gb Virtual machine Guest VMDK's (RAID-1) VG1 900Gb Volume group consisting of a RAID-5 and two RAID-1 VG2 300Gb Volume group consisting of a single disk On VG1 I can dynamically assign storage for my media, photographs, documents, whatever, and it will be safe. On VG2 I can dynamically assign storage for my data that is not critical, and easily recoverable, as it is not safe. Are there any particular 'gotchas' when implementing a virtual OpenFiler like this? Is the recovery process for a failing disk going to be very problematic? Thanks.

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  • Oracle IRM video demonstration of seperating duties of document security

    - by Simon Thorpe
    One thing an Information Rights Management technology should do well is separate out three main areas of responsibility.The business process of defining and controlling the classifications to which content is secured and the definition of the roles employees, customers, partners and contractors have when accessing secured content. Allow IT to manage the server and perform the role of authorizing the creation of new classifications to meet business needs but yet once the classification has been created and handed off to the business, IT no longer plays a role on the ongoing management. Empower the business to take ownership of classifications to which their own content is secured. For example an employee who is leading an acquisition project should be responsible for defining who has access to confidential project documents. This person should be able to manage the rights users have in the classification and also be the point of contact for those wishing to gain rights. Oracle IRM has since it's creation in the late 1990's had this core model at the heart of its design. Due in part to the important seperation of rights from the documents themselves, Oracle IRM places the right functionality within the right parts of the business. For example some IRM technologies allow the end user to make decisions about what users can print, edit or save a secured document. This in practice results in a wide variety of content secured with a plethora of options that don't conform to any policy. With Oracle IRM users choose from a list of classifications to which they have been given the ability to secure information against. Their role in the classification was given to them by the business owner of the classification, yet the definition of the role resides within the realm of corporate security who own the overall business classification policies. It is this type of design and philosophy in Oracle IRM that makes it an enterprise solution that works beyond a few users and a few secured documents to hundreds of thousands of users and millions of documents. This following video shows how Oracle IRM 11g, the market leading document security solution, lets the security organization manage and create classifications whilst the business owns and manages them. If you want to experience using Oracle IRM secured content and the effects of different roles users have, why not sign up for our free demonstration.

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  • Web application and remote storage of files

    - by Matt
    Hi have a web application that can store lots and lots of files on the server. i.e. users upload data to it. The files are stored below a particular storage path. The web host will be an IBM xseries 345. However, the disks are really expensive so we would like to put the files onto a less expensive server. Now here is the question. Should I use an NFS mount on the IBM server of a path on the storage server? Or should I write some scripts to upload the files to the storage server instead. Both the storage server and the web host are on the same network. Only the web server is visible to the world. Is NFS performance suitable for an expected low to moderately loaded server?

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  • "Bad response to Storage command" when scheduling job with Bacula

    - by Joril
    I have a Bacula setup with 9 clients, and it's working happily. Today I had to add another client, so I went and copied+adapted the existing configuration files from another client, but when I schedule a job for the new client, I get these errors: 20-Mar 17:50 tools-dir JobId 39: Start Backup JobId 39, Job=BackupPresenze2.2012-03-20_17.50.49_04 20-Mar 17:50 tools-dir JobId 39: Using Device "FileStorage" 20-Mar 17:50 presenze2-fd JobId 39: Fatal error: Failed to connect to Storage daemon: bacula.mylan.local:9103 20-Mar 17:50 tools-dir JobId 39: Fatal error: Bad response to Storage command: wanted 2000 OK storage , got 2902 Bad storage From the client I can telnet to bacula.mylan.local:9103 just fine, and jobs for other clients work successfully... What could I check? (Server and client run Ubuntu 10.04, if it's relevant)

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  • Product Support News for Oracle Solaris, Systems, and Storage

    - by user12244613
    Hi System Support Customers, April Newsletter is now available The April, 2012 Newsletter for Oracle Solaris, Systems, and Storage is now available via document 1363390.1 *Requires a My Oracle Support account to access. Please take a few minutes to read the newsletter. The newsletter is the primary method of communication about what we in support would like you to be aware of. If you are not receiving the newsletter, it could be due to: (a) Your Oracle profile does not have the allow Oracle Communication selected (on oracle.com Sign In, or if logged in select "Account" and under your Job Role, check you have selected this box : [ ] Yes, send me e-mails in Oracle Products.... (b) you have not logged a service request during the last 12 months. Oracle is working to improve the distribution process and changes are coming and once they are ready I will write more about that. But today if you don't automatically receive the newsletter all you can do is save it as a favorite within My Oracle Support and come back on the 2nd of each month to check out the changes. This month I am really interested to find out from you is the Newsletter providing you the type of items that you are interested in. To gather some data on that, I have a small 2minute survey running on the newsletter or you can access it [ here ] Finally, if you think I am missing a topic in the Newsletter, let me know by taking the survey or suggesting a topic via this blog. Get Proactive Don't forget about being Proactive. The latest updates for Systems and Solaris pages in the Get Proactive area are now available. Check out document 432.1 and learn what proactive features are available for Systems and Solaris.

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  • How can I set up a dual-site Storage Daemon in Bacula (mirror the backup)

    - by Andy
    On site A, I have sucessfully set up a bacula director on one host, several File Daemons on the hosts I want to backup, and finally one Storage Daemon where the backup actually is stored. If disaster struck the building Site A, I want a second Storage Daemon on another site, Site B. The Filesets, Director etc would be the same, except the jobs will be stored on the other Storage Daemon as well. Are there any best practises on this?

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