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barnette08
Expert
Expert

Nested All Flash Input

Hey all,

I know this is a worn out topic with plenty of hits online, but I can't seem to find anything specific to all flash.  Below is my output of vdq and you can see that I've set all the disks to isSSD=1 and IsCapacityFlash=1.  What am I missing here?  I'm not able to see a cache tier when attempting to do the configuration.  Any ideas or links would be greatly appreciated.

[root@nested-esx01:~] vdq -q

[

   {

      "Name"     : "mpx.vmhba0:C0:T4:L0",

      "VSANUUID" : "",

      "State"    : "Eligible for use by VSAN",

      "Reason"   : "None",

      "IsSSD"    : "1",

"IsCapacityFlash": "1",

      "IsPDL"    : "0",

      "Size(MB)" : "1835008",

   "FormatType" : "512n",

   },

   {

      "Name"     : "mpx.vmhba0:C0:T3:L0",

      "VSANUUID" : "",

      "State"    : "Eligible for use by VSAN",

      "Reason"   : "None",

      "IsSSD"    : "1",

"IsCapacityFlash": "1",

      "IsPDL"    : "0",

      "Size(MB)" : "1835008",

   "FormatType" : "512n",

   },

   {

      "Name"     : "mpx.vmhba0:C0:T2:L0",

      "VSANUUID" : "",

      "State"    : "Eligible for use by VSAN",

      "Reason"   : "None",

      "IsSSD"    : "1",

"IsCapacityFlash": "1",

      "IsPDL"    : "0",

      "Size(MB)" : "1835008",

   "FormatType" : "512n",

   },

   {

      "Name"     : "mpx.vmhba0:C0:T1:L0",

      "VSANUUID" : "",

      "State"    : "Eligible for use by VSAN",

      "Reason"   : "None",

      "IsSSD"    : "1",

"IsCapacityFlash": "1",

      "IsPDL"    : "0",

      "Size(MB)" : "1835008",

   "FormatType" : "512n",

   },

   {

      "Name"     : "mpx.vmhba0:C0:T0:L0",

      "VSANUUID" : "",

      "State"    : "Ineligible for use by VSAN",

      "Reason"   : "Has partitions",

      "IsSSD"    : "1",

"IsCapacityFlash": "0",

      "IsPDL"    : "0",

      "Size(MB)" : "20480",

   "FormatType" : "512n",

   },

   {

      "Name"     : "mpx.vmhba0:C0:T5:L0",

      "VSANUUID" : "",

      "State"    : "Eligible for use by VSAN",

      "Reason"   : "None",

      "IsSSD"    : "1",

"IsCapacityFlash": "1",

      "IsPDL"    : "0",

      "Size(MB)" : "1835008",

   "FormatType" : "512n",

   },

2 Replies
T180985
Expert
Expert

IsCapacityFlash=1 marks it as capacity tier, you need will need to change that to 0 on one of the devices

Please mark helpful or correct if my answer resolved your issue. How to post effectively on VMTN https://communities.vmware.com/people/daphnissov/blog/2018/12/05/how-to-ask-for-help-on-tech-forums
barnette08
Expert
Expert

I had tried that on the first host, but not the other 3 to see if it helped but it didn't originally.  So I went back this morning and did it on the last drive on each host (doubt that mattered), and we are off and running.  I am doing this on a VCF bringup using Cloud Builder so it could easily just be the validation process that Cloud Builder uses and wants all 4 hosts to have cache tier before passing validation.  Eitherway, thanks for the sanity check!

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