ESXi

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  • 1.  is it possible to expand raid 10 on ESXi?

    Posted Mar 25, 2011 05:49 PM

    Hello,

    I would like to know if it's possible to expand RAID 10 on EXSi server (local storage).

    Example:

    ESX Storage is on 6x146GB in Raid 10.

    Can I  transparently add 2x146GB drives or may be even 2x300GB

    Thanks.

    Michael.



  • 2.  RE: is it possible to expand raid 10 on ESXi?

    Posted Mar 25, 2011 06:07 PM

    Expanding a RAID and/or a logical volume on the RAID has nothing to do with ESX in first place. It's a function of the RAID controller. In addition to this, if you add 2x300GB to a RAID set with 146GB disks, only 146GB from each of the 300GB disks will be used.

    After expanding the RAID and the logical volume on the RAID you may need to increase the VMFS partition (the datastore) manually. I just answered a similar question. See Re: Datastore increase problem

    André



  • 3.  RE: is it possible to expand raid 10 on ESXi?

    Posted Apr 06, 2011 12:57 PM

    I didn't have any intention to change Raid configuration in ESXi. Mentioned it just because the server is used for VMWare hipervisor.

    My question was about what happens when you create new 2 disk array. How to add new logical drive to an existing RAID 10.



  • 4.  RE: is it possible to expand raid 10 on ESXi?

    Posted Apr 06, 2011 01:12 PM

    if you do not change any raid configuration, the nearest would be doing a volume span from vmware level on the individual 2 disk. bear in mine that any of these disk fail would make the whole vmfs unsable. so the best is still expanding from the raid level and follow the above advise.



  • 5.  RE: is it possible to expand raid 10 on ESXi?

    Posted Apr 06, 2011 02:05 PM

    I am not sure you have made this any clearer. If you want to add the additional disks to your existing RAID 10 array then you would need to check the documentation for your array controller. Once it is expanded you may or not be able to expand the datastore from withing ESXi. If ESXi is installed directly on the RAID 10 array it will be a manual process and potentially risky. If ESXi were installed to a USB or it's own logical disk on the array you should be able to expand the datastore from the vSphere client. If you will be creating a new RAID 10 array from the new disks you can simply create a new datastore using the storage provided by the new array.



  • 6.  RE: is it possible to expand raid 10 on ESXi?

    Posted Apr 08, 2011 02:04 PM

    ESXi is on USB key.

    6x146GB disks in RAID 10, 1 logical volume 

    The question:

    can I add 2 identical drives to RAID 10 on HP Proliant DL 380 G7

    I am asking because there is no visible option for adding disks. ESXi part is clear.



  • 7.  RE: is it possible to expand raid 10 on ESXi?
    Best Answer

    Posted Apr 08, 2011 02:10 PM

    RAID configurations are based on the hardware, just check your RAID controller if its able to detect new hard disks and add to the existing RAID setup, thereafter it would just require rebuilding of the RAID to incorporate the additional drives and subsequently in ESXi server the datastore size will also increase.

    Regards,

    Nikhil



  • 8.  RE: is it possible to expand raid 10 on ESXi?

    Posted Apr 08, 2011 02:22 PM

    this what I thought. There is no way to add disks to an existing RAID 10 without Volume destroy.

    Shure that DL380 G7 will allow add disks. BTW it can handle up to 16 local drives.

    Nikhil, thanks for clarification.