Symptom
With internal SSDs configured as RAID, ESXi 6.5 U1 treats as HDD, not as SSD...
[root@localhost:/vmfs/volumes] esxcli storage nmp device list
naa.60030057023a36a01ef6a8bd2e3c7c26
Device Display Name: Local FTS Disk (naa.60030057023a36a01ef6a8bd2e3c7c26)
Storage Array Type: VMW_SATP_LOCAL
Storage Array Type Device Config: SATP VMW_SATP_LOCAL does not support device configuration.
Path Selection Policy: VMW_PSP_FIXED
Path Selection Policy Device Config: {preferred=vmhba2:C2:T0:L0;current=vmhba2:C2:T0:L0}
Path Selection Policy Device Custom Config:
Working Paths: vmhba2:C2:T0:L0
Is USB: false
mpx.vmhba1:C0:T4:L0
Device Display Name: Local TSSTcorp CD-ROM (mpx.vmhba1:C0:T4:L0)
Storage Array Type: VMW_SATP_LOCAL
Storage Array Type Device Config: SATP VMW_SATP_LOCAL does not support device configuration.
Path Selection Policy: VMW_PSP_FIXED
Path Selection Policy Device Config: {preferred=vmhba1:C0:T4:L0;current=vmhba1:C0:T4:L0}
Path Selection Policy Device Custom Config:
Working Paths: vmhba1:C0:T4:L0
Is USB: false
naa.60030057023a36a021d6f2c21a392021
Device Display Name: Local FTS Disk (naa.60030057023a36a021d6f2c21a392021)
Storage Array Type: VMW_SATP_LOCAL
Storage Array Type Device Config: SATP VMW_SATP_LOCAL does not support device configuration.
Path Selection Policy: VMW_PSP_FIXED
Path Selection Policy Device Config: {preferred=vmhba2:C2:T1:L0;current=vmhba2:C2:T1:L0}
Path Selection Policy Device Custom Config:
Working Paths: vmhba2:C2:T1:L0
Is USB: false
How to fix
[root@localhost:/vmfs/volumes] esxcli storage nmp satp rule add -s VMW_SATP_LOCAL --device naa.60030057023a36a021d6f2c21a392021 --option=enable_ssd
cf.
[root@localhost:/vmfs/volumes]esxcli storage nmp satp rule remove -s VMW_SATP_LOCAL --device naa.60030057023a36a021d6f2c21a392021
[root@localhost:/vmfs/volumes] esxcli storage core claiming unclaim --type device --device naa.60030057023a36a021d6f2c21a392021
[root@localhost:/vmfs/volumes] esxcli storage core claimrule load
[root@localhost:/vmfs/volumes] esxcli storage core claimrule run