This article provides steps to properly tag disks as System Image Cache disks within a vCenter Server Auto Deploy configuration using host profiles.
Symptoms:
When your stateless caching configuration is configured to write to the first disk detected as local using a configuration similar to esx local, you experience these symptoms:
- The ESXi host incorrectly tags local disks as remote disks.
- Running the command esxcli storage core device list displays an inaccurate Is Local value similar to:
naa.################################
Display Name: HP Serial Attached SCSI Disk (naa.################################)
Has Settable Display Name: true
Size: 139979
Device Type: Direct-Access
Multipath Plugin: NMP
Devfs Path: /vmfs/devices/disks/naa.################################
Vendor: HP
Model: LOGICAL VOLUME
Revision: 6.40
SCSI Level: 5
Is Pseudo: false
Status: degraded
Is RDM Capable: true
Is Local: false
Is Removable: false
Is SSD: false
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.######################################################
Is Local SAS Device: false
Is Boot USB Device: false
- Manually tagging disk(s) as local does not persist after a reboot and prevents the host from using the disk as a System Image Cache.