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Windows Server 2008 R2 Thread, Server 2008r2 Failover Cluster - Full Cluster Dsk in Technical; ...
  1. #1

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    Server 2008r2 Failover Cluster - Full Cluster Dsk

    Server 2008r2 failover clusters - all VMs are 2008r2.

    Need your help please!!

    Had a server outage, found that our storage server and SIMs were both paused.

    I remembered this happening before when low disk space at my old place, checked and one of the cluster disks was full.

    I have moved one of the VHDs (SIMS) and folders to a different cluster volume, and then told it where the new VHD was. This has cleared 5.6% of space on the cluster disk 1 and moved SIMs to one of the other empty cluster disks (I have 3)

    Only the storage server is on Cluster Disk 1 now, but I am concerned the same is going to happen again with it running out of space, especially as it is only 50% full in real terms!

    I have only given it 1.5 out of 1.7tb of hdd space in total which was available to it on the cluster disk Ė so why would it go over? Does it reserve whatever the total allocation is to the server? Why hasnít this happened before now?!


    What is the steps to enlarging the cluster disk? Do I need to go into the SAN and change the amount of space allocated? The two other clusters are 89% and 91% free!

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    So the VHD file is 1.5TB but the used space on the VHD is only showing as 750GB?

    You can make windows compact the VHD again, but isn't your VHD set to only grow to a set size anyway?

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    Yes, when I log onto that server, its only using about half the space available to it. None of the drives are near full.

    I dont know about if its set to only grow to x amount? How would I check this?

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    If you go into Virtual Machine Manager (i'm using 2012 but im sure others show this), then go onto the properties of the virtual machine then click on the HDD, it will say Dynamic or Fixed and the Maximum Size if it is Dynamic.

    There is probably also an option to compact the disk.

  5. Thanks to Achandler from:

    mattianuk (13th November 2012)

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    Cant seem them in 20082, looks like ti should be there though :S

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    If your using HyperV Manager, then do settings, then you can see the HDD.

    Click "Inspect" and then it should say size and maximum size in there.

    Edit:

    To compact the disk, your server has to be offline by the way.
    Last edited by Achandler; 13th November 2012 at 02:11 PM.

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    Aha, well that is why I cant do it. Cant turn the central storage server off atm...

    This is what I get when I say inspect... just keeps popping up...

    storage.JPG

    This is my cluster setup

    cluster.JPG

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    You would have to turn the VM off to change it, not to just inspect it.

    I think your VM may have a snapshots? probably many.

    My VMs with no snapshots you have to click inspect once, and ti says the maximum size. I just snap-shotted a test box and I get the same as you on the first window but on the second window it showed the size and maximum size, keep clicking and see if you get to a size in the end.

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    Turns out the storage server was running a snap shot. Obviously something I tried one and left, and now its a 200gb+ snap shot.

    Got to wait to let it merge now...

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