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  • 1.  iSCSI Disk Space not Fully Recognized

    Posted Jun 24, 2010 02:11 PM

    I have an Infortrend EonStor S12E-R1132-4 iSCSI SAN. It came configured with one big Logical Disk of 40TB. When I connect it to ESXi it only shows 20.75GB available. I'm wondering if this is a configuration issue on the SAN or a limitation of ESXi. Any suggestions will be appreciated



  • 2.  RE: iSCSI Disk Space not Fully Recognized
    Best Answer

    Posted Jun 24, 2010 03:01 PM

    your first problem is that this isn't on the vSphere HCL

    http://www.vmware.com/resources/compatibility/search.php?action=search&deviceCategory=san&productId=1&advancedORbasic=advanced&maxDisplayRows=50&key=&datePosted=-1&partnerId[]=121&isSVA=0&rorre=0

    2nd. you should only be using datastores about 2TB in size



  • 3.  RE: iSCSI Disk Space not Fully Recognized

    Posted Jun 24, 2010 03:26 PM

    As kac2 mentioned do create your LUN/datastore less than 2TB each and this is due to current limitation of vmfs-3. Check this out

    vcbMC-1.0.6 Beta

    vcbMC-1.0.7 Lite



  • 4.  RE: iSCSI Disk Space not Fully Recognized

    Posted Jun 24, 2010 07:02 PM

    I made a 2 TB LUN and it sees it. Any reason for this?

    So basically I am going to have to create a bunch of 2TB LUNs and have a bunch of datastores depending on how many VMs I will be needing?

    I'm used to XenServer and it has absolutely no problem seeing a 40TB SAN and using it.



  • 5.  RE: iSCSI Disk Space not Fully Recognized

    Posted Jun 24, 2010 07:09 PM

    it's a limitation of the VMFS filesystem. also, not a smart idea to put all your VMs on a single datastore. you'll be doing storage contention. break it down and put heavy workloads in different datastores.

    Kendrick Coleman

    www.kendrickcoleman.com<http://www.kendrickcoleman.com>;

    twitter: @KendrickColeman



  • 6.  RE: iSCSI Disk Space not Fully Recognized

    Posted Jun 24, 2010 07:12 PM

    Makes sense I suppose, I'm still learning so all this information is good.