BjornJohansson
Enthusiast
Enthusiast

Found the issue: The drive was marked as not local. Also it may be that the drive is not flagged as an SSD (not in my case though).

~ # esxcli storage core device list -d naa.600508b1001c4fb788c917f46bf2a2f5


   Display Name: HP Serial Attached SCSI Disk (naa.600508b1001c4fb788c917f46bf2a2f5)

   Has Settable Display Name: true

   Size: 915683

   Device Type: Direct-Access

   Multipath Plugin: NMP

   Devfs Path: /vmfs/devices/disks/naa.600508b1001c4fb788c917f46bf2a2f5

   Vendor: HP

   Model: LOGICAL VOLUME

   Revision: 4.68

   SCSI Level: 5

   Is Pseudo: false

   Status: degraded

   Is RDM Capable: true

   Is Local: false

   Is Removable: false

   Is SSD: true

   Is Offline: false

   Is Perennially Reserved: false

   Queue Full Sample Size: 0

   Queue Full Threshold: 0

   Thin Provisioning Status: unknown

   Attached Filters:

   VAAI Status: unknown

   Other UIDs: vml.0200010000600508b1001c4fb788c917f46bf2a2f54c4f47494341

   Is Local SAS Device: false

   Is Boot USB Device: false

   No of outstanding IOs with competing worlds: 32

In order to mark it as local I ran this command (note that the syntax of option sub-command is wrong in the documentation, I posted the correct one):

esxcli storage nmp satp rule add -s VMW_SATP_LOCAL --device naa.600508b1001c277a2d4d5e0285b4f6db --option="enable_local"

After a reboot it was possible to add the drive as flash device.

Thanks

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