Before you begin, you will need to identifythe storage device in which you wish to mark as an SSD or HDD. Use thefollowing ESXCLI command to do so:
esxcli storage core device list
In the screenshot above, we can see for ourdevice mpx.vmhba1.C0:T2:L0 shows "Is SSD" parameter asfalse. After running two commands below, we should then see that propertychange to true.
Marking HDD as SSD:
esxcli storage nmp satp rule add -sVMW_SATP_LOCAL -d mpx.vmhba1:C0:T2:L0 -o enable_ssd
esxcli storage core claiming reclaim -d mpx.vmhba1:C0:T2:L0
Marking SSD as HDD:
esxcli storage nmp satp rule add -sVMW_SATP_LOCAL -d mpx.vmhba1:C0:T1:L0 -o disable_ssd
esxcli storage core claiming reclaim -d mpx.vmhba1:C0:T1:L0
To perform the opposite, you simply justneed to add the disable_ssd option. If you receive an error regardinga duplicate rule, you will need to first remove the SATP rule and thenre-create with the appropriate option.
