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  • Which upgrade path for disk IO bound postgres server?

    - by user41679
    Hi all, We currently have a Sun x4270 with 2xquad core Xeon Nehalmen 2.93ghz cores (16 threads), 72 gig of ram and 16 x 10k SAS disks split between the os raid 1, a partition for the Write Ahead Logs which is raid 10 and a partition for the database tables and indexes which is also raid 10, all xfs. I'm currently evaluating which path to go down in terms of upgrades. We'll be sharding the DB at some point soon, but for now I need to focus on hardware upgrades specifically. The machine is not CPU or memory bound at all at the moment, just IOWait is become an issue. The machine is mostly write access as we have a heavy caching layer. We're seeing about 300 write IOPS average on both the database partitions. We don't have any additional storage infrastructure like a Fiber Channel or ISCSI network. Budget isn't too much of a concern, something inline with the size of this server (i.e no $1m IBM machines) Space is ok on the DB side of things, we're running out obviously but there's also some reduction we can do. Additional space would be good though. My current thoughts are either: * ISCSI SAN, possible with 10Gbit network that has solid state acceleration. * FusionIO card / Sun F20 card (will the FusionIO card work in the Sun box? * DAS shelf (something like this http://www.broadberry.co.uk/das-direct-attached-storage-servers/cyberstore-224s-das) which a combination of 15k sas disks and some Intel X25-E drives for DB indexes etc) what would I need to put in the x4270 to add a DAS shelf? I think it's a SAS HBA card, do I have to use Sun's own card or will any PCI Express card work? Anything else??? what would you guys do from your experience? I appreciate it's a lot of questions, but I haven't expanded a DB machine for a number of years and the landscape has changed dramatically since then! Any advice or feedback would be very much appreciated. Let me know if there's anything else I can clarify. Thanks in advance!

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  • Can a folder on a NAS be made available as a physical drive in VMWare?

    - by asbjornu
    We are currently in the process of moving from a single web server to two load balanced web servers and are facing some challenges we don't quite know how to fix. One of these is that the current single server hosts applications that write stuff to disk. The applications running on the server expects that when something is written to disk it later will in fact exist, so it's important that this premise is fulfilled with the dual server architecture as well. The dual server setup is a couple of VMWare instances with Windows Server 2008 R2 as the guest operating system. Out of the box, these instances does not share any kind of file system, so just moving the applications over would make them break since one instance would write something to the file system that doesn't exist on the other. Thus we need to share a file system between the two virtual servers. Our host has proposed to create a network share on a SAN and map this share individually on each virtual machine. This doesn't work too well due to NTFS permissions, etc., because the share needs to be accessed by several independent web applications that won't even be in the same application pool. The only solution that kind of works is to hard code an "identity" for each web application into its web.config file, but this means password in clear text which doesn't sit well with me. Since the servers are virtual, I'm thinknig: Wouldn't it be possible to make a NAS area available as a physical disk in the gues operating system somehow? Since VMWare has full control of the virtual hardware, you'd think it would be able to "fake" a local hard drive in the virtual machine that in reality is a folder on a NAS, but so far I haven't found anything that states how and if this is possible. So I have to ask the wonderful Server Fault community: Can a folder on a NAS be made available as a physical drive (typical D:) in both of the virtual machines?

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  • Best practices for thin-provisioning Linux servers (on VMware)

    - by nbr
    I have a setup of about 20 Linux machines, each with about 30-150 gigabytes of customer data. Probably the size of data will grow significantly faster on some machines than others. These are virtual machines on a VMware vSphere cluster. The disk images are stored on a SAN system. I'm trying to find a solution that would use disk space sparingly, while still allowing for easy growing of individual machines. In theory, I would just create big disks for each machine and use thin provisioning. Each disk would grow as needed. However, it seems that a 500 GB ext3 filesystem with only 50 GB of data and quite a low number of writes still easily grows the disk image to eg. 250 GB over time. Or maybe I'm doing something wrong here? (I was surprised how little I found on the subject with Google. BTW, there's even no thin-provisioning tag on serverfault.com.) Currently I'm planning to create big, thin-provisioned disks - but with a small LVM volume on them. For example: a 100 GB volume on a 500 GB disk. That way I could more easily grow the LVM volume and the filesystem size as needed, even online. Now for the actual question: Are there better ways to do this? (that is, to grow data size as needed without downtime.) Possible solutions include: Using a thin-provisioning friendly filesystem that tries to occupy the same spots over and over again, thus not growing the image size. Finding an easy method of reclaiming free space on the partition (re-thinning?) Something else? A bonus question: If I go with my current plan, would you recommend creating partitions on the disks (pvcreate /dev/sdX1 vs pvcreate /dev/sdX)? I think it's against conventions to use raw disks without partitions, but it would make it a bit easier to grow the disks, if that is ever needed. This is all just a matter of taste, right?

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  • Should I partition my main table with 2 millions rows?

    - by domribaut
    Hi, I am a developer and would need some DBA-advices. We are starting to get performance problem with a MSSQL2005 database. The visible effects of the incidents is mainly CPU-hog on the server but operations reported that it was also draining resources from the SAN (not always). the main source of issues is for sure in some application but I am wondering if we should partition some of the main tables anyway in order to relax the I/O pressure. The base is about 60GB in one file. The main table (order) has 2.1 Million rows with a 215 colones (but none is huge). We have an integer as PK so it should be OK to define a partition function. Will we win something with partitioning? will partition indexes buy us something? Here are some more facts about the DB and the table database_name database_size unallocated space My_base 57173.06 MB 79.74 MB reserved data index_size unused 29 444 808 KB 26 577 320 KB 2 845 232 KB 22 256 KB name rows reserved data index_size unused Order 2 097 626 4 403 832 KB 2 756 064 KB 1 646 080 KB 1688 KB Thanks for any advice Dom

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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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  • Copy past speed very slow for a large number of tiny files on Windows but not on linux

    - by Arno2501
    I've got this folder which contains 15'000 of tiny images (around 400 bytes each). If I copy past this folder on my laptop (Windows 7, i7 latest gen, superfast ssd) it takes about 30 seconds (yes for 7 megs !!!) the average transfer rate is 400 KBytes / second which is so slow. I mean my usual transfer rate is more like hundreds of MBytes per second !!! I get the same problem on my servers (Windows 2003, 2008 /r2) and on every Windows box that I could get my hands on. On the other hand if I do the same on a linux box (debian base, Ext3 FS) (which runs on the same SAN than all the windows servers I've tested) It's nearly instantaneous !!! I'm pretty sure the size / number of the files may stress such filesystem more than another but such differences !? Why is that ? Why is it so slow on the windows boxes (more that 30 sec for 7 MB) and so fast on the linux ones (one sec or so) (I mean this was not a hardlink that I've created it was a true copy). Is it a normal behaviour or something unusual ?

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  • Mac Mavericks, ngircd localhost works, private IP doesn't

    - by user221945
    I have configured ngircd to listen on my private ip address. It doesn't. Localhost works fine. Configuration test: ngIRCd 21-IDENT+IPv6+IRCPLUS+SSL+SYSLOG+TCPWRAP+ZLIB-x86_64/apple/darwin13.2.0 Copyright (c)2001-2013 Alexander Barton () and Contributors. Homepage: http://ngircd.barton.de/ This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Reading configuration from "/opt/local/etc/ngircd.conf" ... OK, press enter to see a dump of your server configuration ... [GLOBAL] Name = irc.bellbookandpistol.com AdminInfo1 = Jaedreth AdminInfo2 = San Diego County CA, US AdminEMail = [email protected] HelpFile = /opt/local/share/doc/ngircd/Commands.txt Info = Server Info Text Listen = 10.0.1.5,127.0.0.1 MotdFile = MotdPhrase = "Welcome to irc.bellbookandpistol.com" Password = PidFile = Ports = 6667 ServerGID = wheel ServerUID = root [LIMITS] ConnectRetry = 60 IdleTimeout = 0 MaxConnections = 0 MaxConnectionsIP = 6 MaxJoins = -1 MaxNickLength = 9 MaxListSize = 0 PingTimeout = 120 PongTimeout = 20 [OPTIONS] AllowedChannelTypes = #&+ AllowRemoteOper = no ChrootDir = CloakHost = CloakHostModeX = CloakHostSalt = kBih5mu\kVI!DC6eifT(hd4m/0'zb/=: CloakUserToNick = no ConnectIPv4 = yes ConnectIPv6 = no DefaultUserModes = DNS = yes IncludeDir = /opt/local/etc/ngircd.conf.d MorePrivacy = no NoticeAuth = no OperCanUseMode = no OperChanPAutoOp = yes OperServerMode = no RequireAuthPing = no ScrubCTCP = no SyslogFacility = local5 WebircPassword = [SSL] CertFile = CipherList = HIGH:!aNULL:@STRENGTH DHFile = KeyFile = KeyFilePassword = Ports = [OPERATOR] Name = [REDACTED] Password = [REDACTED] Mask = [CHANNEL] Name = #BBP Modes = tnk Key = MaxUsers = 0 Topic = Welcome to the Bell, Book and Pistol IRC Server! KeyFile = As you can see, it should be listening on 10.0.1.5, but it isn't. After turning on Apache manually, port 80 works on 10.0.1.5, but port 6667 doesn't. It only works on localhost. Is there some terminal command I could use or some config file I could edit to get this to work?

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  • Best NIC config when virtual servers need iSCSI storage?

    - by icky2000
    I have a Windows 2008 server running Hyper-V. There are 6 NICs on the server configured like this: NIC01 & NIC02: teamed administrative interface (RDP, mgmt, etc) NIC03: connected to iSCSI VLAN #1 NIC04: connected to iSCSI VLAN #2 NIC05: dedicated to one virtual switch for VMs NIC06: dedicated to another virtual switch for VMs The iSCSI NICs are used obviously for storage to host the VMs. I put half the VMs on the host on the switch assigned to NIC05 and the other half on the switch assigned to NIC06. We have multiple production networks that the VMs could appear on so the switch ports that NIC05 & NIC06 are connected to are trunked and we then tag the NIC on the VM for the appropriate VLAN. No clustering on this host. Now I wish to assign some iSCSI storage direct to a VM. As I see it I have 2 options: Add the iSCSI VLANs to the trunked ports (NIC05 and NIC06), add two NICs to the VM that needs iSCSI storage, and tag them for the iSCSI VLANs Create two additional virtual switches on the host. Assign one to NIC03 and one to NIC04. Add two NICs to the VM that needs iSCSI storage and let them share that path to the SAN with the host. I'm wondering about how much overhead the VLAN tagging in Hyper-V has and haven't seen any discussion about that. I'm also a bit concerned that something funky on the iSCSI-connected VM could saturate the iSCSI NICs or cause some other problem that could threaten storage access for the entire host which would be bad. Any thoughts or suggestions? How do you configure your hosts when VMs connect direct to iSCSI?

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  • SQL Server performance on VSphere 4.0

    - by Charles
    We are having a performance issue that we cannot explain with our VMWare environment and I am hoping someone here may be able to help. We have a web application that uses a databases backend. We have an SQL 2005 Cluster setup on Windows 2003 R2 between a physical node and a virtual node. Both physical servers are identical 2950's with 2x Xeaon x5460 Quad Core CPUs and 64GB of memory, 16GB allocated to the OS. We are utilizing an iSCSI San for all cluster disks. The problem is this, when utilizing the application under a repeated stress testing that adds CPUs to the cluster nodes, the Physical node scales from 1 pCPU to 8 pCPUs, meaning we see continued performance increases. When testing the node running Vsphere, we have the expected 12% performance hit for being virtual but we still scale from 1 vCPU to 4 vCPUs like the physical but beyond this performance drops off, by the time we get to 8 vCPUs we are seeing performance numbers worse than at 4 vCPUs. Again, both nodes are configured identically in terms of hardware, Guest OS, SQL Configurations etc and there is no traffic other than the testing on the system. There are no other VMs on the virtual server so there should be no competition for resources. We have contacted VMWare for help but they have not really been any suggesting things like setting SQL Processor Affinity which, while being helpful would have the same net effect on each box and should not change our results in the least. We have looked at all of VMWare's SQL Tuning guides with regards to VSphere with no benefit, please help!

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  • Salary Survey Entry Level network position [closed]

    - by will
    Hello, I started interning with a company about 5 months ago and for the past 7 months I have been a normal part time employee. This week I have a review, where I am hoping to get a raise. I started at $8 interning, and now I'm up to $13. What I am trying to figure out is how to survey what others are making in similar positions so I can take it to the review as a base number. here are my thoughts on my position right now. Review Thoughts My Qualifications: • Associates of applied Science - IT network Specialist • CompTIA A+ certification • CompTIA Server+ certification • CompTIA Network+ certification • Currently pursuing Cisco certifications • Junior status at Insert college Pursuing Bachelors in Information Technology with an emphasis in Networking. 3.4 GPA • 1 year of working at Insert Company. My contributions to Insert Company • Offering near fulltime through semester and fulltime through summer. • Ability to work after hours and on weekends • Developed and support helpdesk system • Set up and maintain Update server to keep desktop clients up to date • Deployed and maintain antivirus solution for end users • Assist with main projects such as SAN, Virtualization, and network survey. Any tips on determining an asking number would help. I was thinking $17-$18, am I way off here? • Migrating end user stations to Windows 7 (current project) • Developing imaging solution for Desktop PCs (current project)

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  • Installing Ubuntu guest crashes Hyper-V host

    - by Grant
    I have a weird problem that I don't even know where to begin diagnosing. Trying to install Ubuntu to a VM locks up the host system! My setup is: Dell R715 server, dual 16 core AMD opteron processors, 96GB RAM Dell MD3600f SAN Server 2008 R2 Datacenter System Center VMM 2012 There are 5 windows virtual machines running that have had no problems. This is the first linux VM I've tried to create. I setup a VM through virtual machine manager, set the CD drive to a Ubuntu 12.04 server x64 iso, and started it up. It boots up the normal ubuntu install menu, but the second I hit enter on "Install Ubuntu Server", I get disconnected. The HOST machine stops responding to pings. So do all virtual machines on it. It locks up entirely - keyboard on the host won't work, mouse won't move, numlock light won't change. There's no blue screen - the host is sitting at the login screen completely unresponsive. I can't find any relevant logs in event viewer after rebooting. What could cause the host machine to freeze like that? It's not a one time occurrence - it happens every time at the exact same point. Thank god this server isn't in production yet!

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  • System Center 2012 VMM UI is very slow

    - by Grant
    I've recently setup system center 2012 a new server 2008 r2 server which I'm using for virtual machines. Everything seems to be working fine, and the virtual machines are nice and fast. But the Virtual Machine Manager interface is always excruciatingly slow. Sometimes taking up to 15 seconds moving between screens. It's very frustrating trying to use it when a task that just involves a couple clicks ends up taking several minutes. Pages that have a lot of form fields seem to take the longest to load - such as the page to change hardware settings of a virtual machine. Is this just normal performance for VMM? If not, where can I look to find what is slowing it down. Nothing else on the system seems to suffer. I can load and use Hyper-V manager with no noticable slowness. Even programs like event viewer that are usually rather slow seem to load fairly fast. Only the system center programs seem slow. Server is a Dell R710, 2x16 core opteron 6274 processors, 96GB RAM. OS drive is 2x500GB 7.2k RPM SAS drives in RAID1 (opted for the less expensive 7.2k drives since pretty much everything is stored on the SAN). Am I just being impatient? Does anyone else use VMM 2012 and find it slow?

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  • KVM Hosting: How to efficiently replicate guests

    - by javano
    I have three KVM servers each with 1 guest VM, running directly on it's local storage, (so they are essentially getting a dedicated box worth of computing power each). In the event of a host failure I would like the guests replicated to at least one of the other hosts so I can spin it up there, until the failing host is fixed. I am curious about KVM cloning. I can clone a VM live or when it's suspended/shutdown. Obivously suspended VMs will naturally be quicker to clone but these three VMs comprise three parts of a single solution, so I don't want to ever have any one of them shutdown. How can I efficiently clone these VMs between servers? I have had a couple of ideas, but are these insane or, is there a better method I have missed for my scenario? Set up a DRDB partition between box 1 and 2 where VM 1 runs from, and so is replicated between box1 and box 2, repeat between box 2 & 3, and box 3 & 1 (This could be insane, I have never used DRDB only read about it) Just use standard KVM CLI clone options to perform live clones (I'm dubious about this because I don't know how long it will take and what the performance impact will be during) Run a copy of each VM on at least one other host, and have the guest on one host export it's data to the matching guest on another host where it can import that data, scripting this on the guest) Some of other way? Ideas welcome! Side Note These servers have 4x15k SAS drives in a RAID 10 so they aren't rocketing fast, and as I mentioned, each VM runs from the host's local storage, no NAS or SAN etc. So that is why I am asking this question about guest replication. Also, this isn't about disaster recovery. Guests will be exporting their data to a NAS over a VPN, so I am looking at how I can have them quickly spun up in a host failure situation.

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  • How do I speed up and cache mmap file access over NFS on Linux?

    - by Zan Lynx
    The server and client are both 64-bit Ubuntu 10.04 LTS. The application in question is a custom app that uses mmap() for fast random file access. Its ideal state is when the entire file is cached in RAM. The network connections are really fast 10Gb Ethernet. It is a virtual server blade setup. It isn't the network connections slowing things down because everything performs superbly when using a virtual disk (iSCSI to the SAN). But when we run the application on a NFS home directory mount, performance goes to the dogs. It appears that the Linux kernel isn't caching anything. So it is reading every single disk block needed by mmap() accesses over and over and over again. The NFS mount is done through autofs, which has only default settings. /proc/mounts shows the NFS mount is done with the following options: rw,relatime,vers=3,rsize=131072,wsize=131072,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=192.168.11.52,mountvers=3,mountproto=tcp,addr=192.168.11.52 How can I make Ubuntu 10.04 cache the file instead of reloading it all the time?

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  • Oracle: 1 Large Server vs. 2 Smaller Servers?

    - by nvahalik
    We are in the planning stages of setting up our production Oracle 10gR2 environment. Our budget gives us the ability to buy 2 processor licenses of Oracle DB Standard Edition. We have minimal experience with Oracle so I'll defer to anyone who has used it. We are trying to decide if we should set up a single dual quad-core box or 2 individual quad-core boxes in a RAC configuration. Our DB right now is about 60 GB, and at our peak, we'll have up to 150 concurrent users. Most of the big stuff is done via batch processing at night. My gut tells me that having 2 boxes in a RAC configuration can't be a bad thing because it provides a true hardware failover solution. DB stored in a shared LUN on a SAN via iSCSI. Plus if we ever need to add capacity, we already have boxes in place that can be upgraded with extra procs (I assume with zero downtime, since it's set up in a RAC config) if we add extra licenses, or RAM. Does RAC have any performance penalties? Will it add extra latency? Is there any true advantage for having dual processor boxes running these systems? If we build out the Oracle boxes with special hardware: hardware iSCSI cards, TOE NICs, will these boxes be solid? We are deploying on 64-bit Windows. So what would you do? One box or two?

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  • Alias for Drupal "Sites" folder with Apache on Windows Server 2008

    - by sgtbeano
    I'm having to move a number of sites from a LAMP stack to a WAMP one, provided by Zend, and I've hit a problem. Our architecture is a number of loadbalanced web servers which have their own local webapp drives which are kept in sync with one server performing as the master copy. There is then a separate DFS share provided to all web servers from our pillar san. Usually a Drupal install under our LAMP cluster would have the main Drupal web app in a local HTDOCS mount for each server and the SITES directory within Drupal would then be symlinked out to the DFS or NFS share so that there is a common FILES and TMP directory. The problem I'm having is that there seems to be no equivalent of symlinks on Win Server 2008, shortcuts have a .ink at the end making Apache see them as a distinct file. So I've tried using an alias call in the vhost file like this; <Location /drupal-626/sites> Order deny, allow Allow from all </Location> Alias /drupal-626/sites "Z:\Path to alternate sites directory" The root for this test is; http://main-domain-url/drupal-626/ Unfortunately this isn't work so I'm wondering if any of you have a solution which would work? Many thanks for taking the time to read this.

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  • RAIDs with a lot of spindles - how to safely put to use the "wasted" space

    - by kubanczyk
    I have a fairly large number of RAID arrays (server controllers as well as midrange SAN storage) that all suffer from the same problem: barely enough spindles to keep the peak I/O performance, and tons of unused disk space. I guess it's a universal issue since vendors offer the smallest drives of 300 GB capacity but the random I/O performance hasn't really grown much since the time when the smallest drives were 36 GB. One example is a database that has 300 GB and needs random performance of 3200 IOPS, so it gets 16 disks (4800 GB minus 300 GB and we have 4.5 TB wasted space). Another common example are redo logs for a OLTP database that is sensitive in terms of response time. The redo logs get their own 300 GB mirror, but take 30 GB: 270 GB wasted. What I would like to see is a systematic approach for both Linux and Windows environment. How to set up the space so sysadmin team would be reminded about the risk of hindering the performance of the main db/app? Or, even better, to be protected from that risk? The typical situation that comes to my mind is "oh, I have this very large zip file, where do I uncompress it? Umm let's see the df -h and we figure something out in no time..." I don't put emphasis on strictness of the security (sysadmins are trusted to act in good faith), but on overall simplicity of the approach. For Linux, it would be great to have a filesystem customized to cap I/O rate to a very low level - is this possible?

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  • Identifying Exchange 2010 regular process that is walking the mailbox database

    - by toongeneral
    I have an Exchange 2010 server running on a SAN-backed platform. The platform does block-level backups based on a snapshot/incremental basis, that only capture changed data. I was surprised to see a regular period of time where the data changes were happening at a high, sustained rate. Due to the way this system works, that can lead to 1.2TB of stored data per month. The regularity implied a scheduled task, but it is not a fixed interval. It is approximately every 26-32hrs. The disks were performing read operations of ~5MB/s and write operations of ~4.5MB/s, for a period of 3-4hrs. The total written data was ~55-60GB. Reading on TechNet, I am wondering if the following is causing this: http://blogs.technet.com/b/exchange/archive/2011/12/14/database-maintenance-in-exchange-2010.aspx#checksumming The somewhat restrictive thing is that the process only happens at most once every 24 hours. I was able to investigate while it was running, finding the following: the process is store.exe it is working on the mailbox database files while running, it is generating .log files (in the mailbox database folder) consistent with database changes the mailbox database is ~60GB in size, which fits with the total data changes on each iteration I have currently switched to a fixed maintenance window, as a test. It's not clear whether this is the cause, as the symptoms fit, but are not conclusive. Does anyone have any suggestions for additional troubleshooting?

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  • Inexpensive (used) hardware for Xen virtualization test?

    - by Jason Antman
    Virtualization is one of the areas where I could really use some experience. I also run quite a few services (web, mail, dns, etc.) out of my home. Since most of my hardware is getting a bit old (I'm running on stuff that was surplused years ago...) I decided that it's about time I start renewing some things, and also play around with virtualization a bit more. My plan is to setup a SAN box (simple iSCSI target, relatively inexpensive gigE switch), get a pair (for starters) of new servers, and start building some new stuff with Xen, specifically planning on playing with live migration and full virtualization. Does anyone have recommendations for used, older "servers" (really anything in a rack-mount form factor, I'm not too worried about things like iLO/iLOM for the test nodes) that support VT-x/AMD-V? I'm biased to HP, but it looks like they didn't make Proliants with VT-x/Vanderpool processors until G6 (for the DL360) or so, which is way out of my price range. I'm looking in the sub-$300 range (or less, if possible), used, probably Ebay. Any recommendations are greatly appreciated. Edit:And, to catch this before the comments start coming - these are personal systems. I have first-generation Proliants still in use (I got them as corporate surplus in 05, they've been running since then, and probably were running since 01 or 02 prior to being sold). I don't need anything shiny and new - I've got a bunch of old boxes, at least one complete replacement for every model in use, and that's fine for me (and easy on the wallet).

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  • Potential impact of large broadcast domains

    - by john
    I recently switched jobs. By the time I left my last job our network was three years old and had been planned very well (in my opinion). Our address range was split down into a bunch of VLANs with the largest subnet a /22 range. It was textbook. The company I now work for has built up their network over about 20 years. It's quite large, reaches multiple sites, and has an eclectic mix of devices. This organisation only uses VLANs for very specific things. I only know of one usage of VLANs so far and that is the SAN which also crosses a site boundary. I'm not a network engineer, I'm a support technician. But occasionally I have to do some network traces for debugging problems and I'm astounded by the quantity of broadcast traffic I see. The largest network is a straight Class B network, so it uses a /16 mask. Of course if that were filled with devices the network would likely grind to a halt. I think there are probably 2000+ physical and virtual devices currently using that subnet, but it (mostly) seems to work. This practise seems to go against everything I've been taught. My question is: In your opinion and  From my perspective - What measurement of which metric would tell me that there is too much broadcast traffic bouncing about the network? And what are the tell-tale signs that you are perhaps treading on thin ice? The way I see it, there are more and more devices being added and that can only mean more broadcast traffic, so there must be a threshold. Would things just get slower and slower, or would the effects be more subtle than that?

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  • Help with Backup Scheme for B.E 12.5

    - by Jemartin
    I'm in process of implementing a new backup scheme. I would say that I'm kind of new to it. So here my question. I'm currently using Backup Exec 12.5 on Windows Server 2008 w/Hyper-V, and IBM Adic Scalar 24. I currently backup our mail server, SQL DB, Board Server Linux Red Hat, Ftp, etc. To a Near-line which is local on our SAN I have the daily's go there as well as full. I would like to start weekly full to tape on a Saturday it takes about 2-3 days to complete the entire full to tape due to backing up from our Co-Lo as well. I have read up on the Father/son rotation but here's my issue with that I dont use tapes everyday only on the weekly full to tape will I be using them. So if there is 4 weeks in a month would I rotate in this order ( Month June WK1 =7tapes , June WK2=7 tapes, June WK3=7tapes June Wk4=7tapes with WK4 being the last tape for the month of June I would use that as a Month tape. For the month of July Wk1= June's WK1 tapes, July WK2= June's WK2 tapes July WK4 = Junes Wk4 tape for a month or would I use a set of new tapes for the last week in July. All tapes are being taking off site as well.

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  • What’s New from the Oracle Marketing Cloud at Oracle OpenWorld 2014?

    - by Richard Lefebvre
    Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Marketing—CX Central is your hub for all things Marketing related at OpenWorld in San Francisco, September 28-October 2, 2014. Learn how to personalize the modern marketing journey to improve customer loyalty. We’re hosting more than 60 breakout sessions, half of which will highlight customer success stories from marquee brands including Bizo, Comcast, Dell, Epson, John Deere, Lane Bryant, ReadyTalk and Shutterfly. Moscone West, Levels 2 and 3 To learn more about how modern marketing works, visit Moscone West, levels 2 and 3, for exciting demos of each of the Oracle Marketing Cloud solutions (BlueKai, Compendium, Eloqua, Push I/O, and Responsys). You also can check out our stations for Vertical Marketing Best Practices, the Markie Awards, and more! CX Spotlight Sessions “Accelerating Big Profits in Big Data,” Jeff Tanner, Baylor University “Using Content Marketing to Impact Every Stage of the Buyer’s Journey,” Jennifer Agustin, Bizo “Expanding Your Marketing with Proven Testing and Optimization,” Brian Border, Shutterfly and Matthew Balthazor, Epson “Modern Marketing: The New Digital Dialogue,” Cory Treffiletti, Oracle A Special Marquee Session Dell’s Hayden Mugford will speak on “The Digital Ecosystem: Driving Experience Through Contact Engagement.” She will highlight how the organization built a digital ecosystem that supports a behaviorally driven, multivehicle nurturing campaign. The Dell 1:1 Global Marketing team worked with multiple partners to innovate integrations with Oracle Eloqua, Oracle Real-Time Decisions for real-time decision logic, and a content management system (CMS) that enables 100 percent customized e-mails. The program doubled average order values for nurtured contacts versus non-nurtured and tripled open and click-through rates versus push e-mail. Other Oracle Marketing Cloud Session Highlights Thought leadership by role Exploring the benefits of moving to the Cloud Product line roadmaps and innovations in Marketing Technical deep dives for product lines within Marketing Best practices and impactful business measurements Solutions that are Integrated across CX Target Audience Session content is geared toward professionals in Marketing, Marketing Operations, Marketing Demand Generation, Social: Chief Marketing Officers, Vice Presidents, Directors and Managers. Outcomes Customers attending Marketing—CX Central @ OpenWorld will be able to: Gain insight into delivering consistent cross-channel marketing Discover how to provide the right information to the right customer at the right time and with the right channel Get answers to burning questions and advice on business challenges Hear from other Oracle customers about recommended best practices to help their organization move forward Network and share ideas to help create a strategy for connecting with customers in better ways It Wouldn’t Be an Oracle Marketing Cloud Event Without a Party! We’re hosting CX Central Fest:  a unique customer experience specifically designed for attendees of CX Central. It will include a chance to rock out at a private concert featuring Los Angeles indie electronic pop group, Capital Cities! Join us Tuesday, September 30 from 7-9 p.m. OpenWorld is a fabulous way for your customers to see all that Oracle Marketing Cloud has to offer. Pass on an invitation today. By Laura Vogel (Oracle) /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

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  • Oracle Announces Oracle Exadata X3 Database In-Memory Machine

    - by jgelhaus
    Fourth Generation Exadata X3 Systems are Ideal for High-End OLTP, Large Data Warehouses, and Database Clouds; Eighth-Rack Configuration Offers New Low-Cost Entry Point ORACLE OPENWORLD, SAN FRANCISCO – October 1, 2012 News Facts During his opening keynote address at Oracle OpenWorld, Oracle CEO, Larry Ellison announced the Oracle Exadata X3 Database In-Memory Machine - the latest generation of its Oracle Exadata Database Machines. The Oracle Exadata X3 Database In-Memory Machine is a key component of the Oracle Cloud. Oracle Exadata X3-2 Database In-Memory Machine and Oracle Exadata X3-8 Database In-Memory Machine can store up to hundreds of Terabytes of compressed user data in Flash and RAM memory, virtually eliminating the performance overhead of reads and writes to slow disk drives, making Exadata X3 systems the ideal database platforms for the varied and unpredictable workloads of cloud computing. In order to realize the highest performance at the lowest cost, the Oracle Exadata X3 Database In-Memory Machine implements a mass memory hierarchy that automatically moves all active data into Flash and RAM memory, while keeping less active data on low-cost disks. With a new Eighth-Rack configuration, the Oracle Exadata X3-2 Database In-Memory Machine delivers a cost-effective entry point for smaller workloads, testing, development and disaster recovery systems, and is a fully redundant system that can be used with mission critical applications. Next-Generation Technologies Deliver Dramatic Performance Improvements Oracle Exadata X3 Database In-Memory Machines use a combination of scale-out servers and storage, InfiniBand networking, smart storage, PCI Flash, smart memory caching, and Hybrid Columnar Compression to deliver extreme performance and availability for all Oracle Database Workloads. Oracle Exadata X3 Database In-Memory Machine systems leverage next-generation technologies to deliver significant performance enhancements, including: Four times the Flash memory capacity of the previous generation; with up to 40 percent faster response times and 100 GB/second data scan rates. Combined with Exadata’s unique Hybrid Columnar Compression capabilities, hundreds of Terabytes of user data can now be managed entirely within Flash; 20 times more capacity for database writes through updated Exadata Smart Flash Cache software. The new Exadata Smart Flash Cache software also runs on previous generation Exadata systems, increasing their capacity for writes tenfold; 33 percent more database CPU cores in the Oracle Exadata X3-2 Database In-Memory Machine, using the latest 8-core Intel® Xeon E5-2600 series of processors; Expanded 10Gb Ethernet connectivity to the data center in the Oracle Exadata X3-2 provides 40 10Gb network ports per rack for connecting users and moving data; Up to 30 percent reduction in power and cooling. Configured for Your Business, Available Today Oracle Exadata X3-2 Database In-Memory Machine systems are available in a Full-Rack, Half-Rack, Quarter-Rack, and the new low-cost Eighth-Rack configuration to satisfy the widest range of applications. Oracle Exadata X3-8 Database In-Memory Machine systems are available in a Full-Rack configuration, and both X3 systems enable multi-rack configurations for virtually unlimited scalability. Oracle Exadata X3-2 and X3-8 Database In-Memory Machines are fully compatible with prior Exadata generations and existing systems can also be upgraded with Oracle Exadata X3-2 servers. Oracle Exadata X3 Database In-Memory Machine systems can be used immediately with any application certified with Oracle Database 11g R2 and Oracle Real Application Clusters, including SAP, Oracle Fusion Applications, Oracle’s PeopleSoft, Oracle’s Siebel CRM, the Oracle E-Business Suite, and thousands of other applications. Supporting Quotes “Forward-looking enterprises are moving towards Cloud Computing architectures,” said Andrew Mendelsohn, senior vice president, Oracle Database Server Technologies. “Oracle Exadata’s unique ability to run any database application on a fully scale-out architecture using a combination of massive memory for extreme performance and low-cost disk for high capacity delivers the ideal solution for Cloud-based database deployments today.” Supporting Resources Oracle Press Release Oracle Exadata Database Machine Oracle Exadata X3-2 Database In-Memory Machine Oracle Exadata X3-8 Database In-Memory Machine Oracle Database 11g Follow Oracle Database via Blog, Facebook and Twitter Oracle OpenWorld 2012 Oracle OpenWorld 2012 Keynotes Like Oracle OpenWorld on Facebook Follow Oracle OpenWorld on Twitter Oracle OpenWorld Blog Oracle OpenWorld on LinkedIn Mark Hurd's keynote with Andy Mendelsohn and Juan Loaiza - - watch for the replay to be available soon at http://www.youtube.com/user/Oracle or http://www.oracle.com/openworld/live/on-demand/index.html

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  • Java Spotlight Episode 108: Patrick Curran and Heather VanCura on JCP.Next @jcp_org

    - by Roger Brinkley
    Interview with Patrick Curran and Heather VanCura on JCP.Next. Right-click or Control-click to download this MP3 file. You can also subscribe to the Java Spotlight Podcast Feed to get the latest podcast automatically. If you use iTunes you can open iTunes and subscribe with this link:  Java Spotlight Podcast in iTunes. Show Notes News Welcome to the newly merged JCP EC! The November/December issue of Java Magazine is now out Red Hat announces intent to contribute to OpenJFX New OpenJDK JEPs: JEP 168: Network Discovery of Manageable Java Processes JEP 169: Value Objects Java EE 7 Survey Latest Java EE 7 Status GlassFish 4.0 Embedded (via @agoncal) Events Nov 13-17, Devoxx, Antwerp, Belgium Nov 20, JCP Public Meeting (see details below) Nov 20-22, DOAG 2012, Nuremberg, Germany Dec 3-5, jDays, Göteborg, Sweden Dec 4-6, JavaOne Latin America, Sao Paolo, Brazil Dec 14-15, IndicThreads, Pune, India Feature InterviewPatrick Curran is Chair of the Java Community Process organization. In this role he oversees the activities of the JCP's Program Management Office including evolving the process and the organization, managing its membership, guiding specification leads and experts through the process, chairing Executive Committee meetings, and managing the JCP.org web site.Patrick has worked in the software industry for more than 25 years, and at Sun and then Oracle for 20 years. He has a long-standing record in conformance testing, and before joining the JCP he led the Java Conformance Engineering team in Sun's Client Software Group. He was also chair of Sun's Conformance Council, which was responsible for defining Sun's policies and strategies around Java conformance and compatibility.Patrick has participated actively in several consortia and communities including the W3C (as a member of the Quality Assurance Working Group and co-chair of the Quality Assurance Interest Group), and OASIS (as co-chair of the Test Assertions Guidelines Technical Committee). Patrick's blog is here.Heather VanCura manages the JCP Program Office and is responsible for the day-to-day nurturing, support, and leadership of the community. She oversees the JCP.org web site, JSR management and posting, community building, events, marketing, communications, and growth of the membership through new members and renewals.  Heather has a front row seat for studying trends within the community and recommending changes. Several changes to the program in recent years have included enabling broader participation, increased transparency and agility in JSR development.  When Heather joined the PMO staff in a community building marketing manager role for the JCP program, she was responsible for establishing the JCP brand logo programs, the JCP.org site, and engaging the community in online surveys and usability studies. She also developed marketing reward programs,  campaigns, sponsorships, and events for the JCP program, including the community gathering at the annual JavaOne Conference.   Before arriving at the JCP community in 2000, Heather worked with various technology companies.  Heather enjoys speaking at conferences, such as Devoxx, Java Zone, and the JavaOne Conferences. She maintains the JCP Blog, Twitter feed (@jcp_org) and Facebook page.  Heather resides in the San Francisco Bay Area, California USA. JCP Executive Committee Public Meeting Details Date & Time Tuesday November 20, 2012, 3:00 - 4:00 pm PST Location Teleconference Dial-in +1 (866) 682-4770 Conference code: 627-9803 Security code: 52732 ("JCPEC" on your phone handset) For global access numbers see http://www.intercall.com/oracle/access_numbers.htm Or +1 (408) 774-4073 WebEx Browse for the meeting from https://jcp.webex.com No registration required (enter your name and email address) Password: JCPEC Agenda JSR 355 (the EC merge) implementation report JSR 358 (JCP.next.3) status report 2.8 status update and community audit program Discussion/Q&A Note The call will be recorded and the recording published on jcp.org, so those who are unable to join in real-time will still be able to participate. September 2012 EC meeting PMO report with JCP 2.8 statistics.JSR 358 Project page What’s Cool Sweden: Hot Java in the Winter GE Engergy using Invoke Daynamic for embedded development

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  • Markus Zirn, "Big Data with CEP and SOA" @ SOA, Cloud &amp; Service Technology Symposium 2012

    - by JuergenKress
    ORACLE PROMOTIONAL DISCOUNT FOR EXCLUSIVE ORACLE DISCOUNT, ENTER PROMO CODE: DJMXZ370 Early-Bird Registration is Now Open with Special Pricing! Register before July 1, 2012 to qualify for discounts. Visit the Registration page for details. The International SOA, Cloud + Service Technology Symposium is a yearly event that features the top experts and authors from around the world, providing a series of keynotes, talks, demonstrations, and panels, as well as training and certification workshops - all dedicated to empowering IT professionals to realize modern service technologies and practices in the real world. Click here for a two-page printable conference overview (PDF). Big Data with CEP and SOA - September 25, 2012 - 14:15 Speaker: Markus Zirn, Oracle and Baz Kuthi, Avocent The "Big Data" trend is driving new kinds of IT projects that process machine-generated data. Such projects store and mine using Hadoop/ Map Reduce, but they also analyze streaming data via event-driven patterns, which can be called "Fast Data" complementary to "Big Data". This session highlights how "Big Data" and "Fast Data" design patterns can be combined with SOA design principles into modern, event-driven architectures. We will describe specific architectures that combines CEP, Distributed Caching, Event-driven Network, SOA Composites, Application Development Framework, as well as Hadoop. Architecture patterns include pre-processing and filtering event streams as close as possible to the event source, in memory master data for event pattern matching, event-driven user interfaces as well as distributed event processing. Focus is on how "Fast Data" requirements are elegantly integrated into a traditional SOA architecture. Markus Zirn is Vice President of Product Management covering Oracle SOA Suite, SOA Governance, Application Integration Architecture, BPM, BPM Solutions, Complex Event Processing and UPK, an end user learning solution. He is the author of “The BPEL Cookbook” (rated best book on Services Oriented Architecture in 2007) as well as “Fusion Middleware Patterns”. Previously, he was a management consultant with Booz Allen & Hamilton’s High Tech practice in Duesseldorf as well as San Francisco and Vice President of Product Marketing at QUIQ. Mr. Zirn holds a Masters of Electrical Engineering from the University of Karlsruhe and is an alumnus of the Tripartite program, a joint European degree from the University of Karlsruhe, Germany, the University of Southampton, UK, and ESIEE, France. KEYNOTES & SPEAKERS More than 80 international subject matter experts will be speaking at the Symposium. Below are confirmed keynotes and speakers so far. Over 50% of the agenda has not yet been finalized. Many more speakers to come. View the partial program calendars on the Conference Agenda page. CONFERENCE THEMES & TRACKS Cloud Computing Architecture & Patterns New SOA & Service-Orientation Practices & Models Emerging Service Technology Innovation Service Modeling & Analysis Techniques Service Infrastructure & Virtualization Cloud-based Enterprise Architecture Business Planning for Cloud Computing Projects Real World Case Studies Semantic Web Technologies (with & without the Cloud) Governance Frameworks for SOA and/or Cloud Computing Projects Service Engineering & Service Programming Techniques Interactive Services & the Human Factor New REST & Web Services Tools & Techniques Oracle Specialized SOA & BPM Partners Oracle Specialized partners have proven their skills by certifications and customer references. To find a local Specialized partner please visit http://solutions.oracle.com SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit  www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Technorati Tags: Markus Zirn,SOA Symposium,Thomas Erl,SOA Community,Oracle SOA,Oracle BPM,BPM Community,OPN,Jürgen Kress

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