Use the esxcli command to verify whether a particular storage device is thin-provisioned.
Prerequisites
Install vCLI or deploy the vSphere Management Assistant (vMA) virtual machine. See Getting Started with vSphere Command-Line Interfaces. For troubleshooting, run esxcli commands in the ESXi Shell.
Procedure
- ♦ Run the esxcli storage core device list -d=device_ID command.
Results
# esxcli storage core device list -d naa.XXXXXXXXXXXX4c naa.XXXXXXXXXXXX4c Display Name: XXXX Fibre Channel Disk(naa.XXXXXXXXXXXX4c) Size: 20480 Device Type: Direct-Access Multipath Plugin: NMP --------------------- Thin Provisioning Status: yes ---------------------An unknown status indicates that a storage device is thick.
Note: Some storage systems present all devices as thin-provisioned no matter whether the devices are thin or thick. Their thin provisioning status is always
yes. For details, check with your storage vendor.