VNX: VMware Delete Status: unsupported

Summary: VNX: VMware Delete Status: unsupported

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Symptoms

Users must check if the LUNs are thin provisioned or not.

Using ESXi cli:

esxcli storage core device list -d naa.<wwn>

<Output is truncated>
.
.
Thin Provisioning Status: yes <-------- It means that the LUNs are thin provisioned.
Attached Filters: VAAI_FILTER

This is regarding VAAI plug-in issue, Delete status is showing unsupported.

esxcli storage core device vaai status get -d naa.<wwn>

VAAI Plugin Name: VMW_VAAIP_CX
ATS Status: supported
Clone Status: supported
Zero Status: supported
Delete Status: unsupported <---------- 
esxcli storage core device list -d naa.<wwn>

<Output is truncated>
.
.
Thin Provisioning Status: unknown   <------------ it means that the LUNs are thick provisioned.
Attached Filters: VAAI_FILTER

 

Cause

LUNs are thick provisioned.

 

Resolution

  1. Use the VMware Compatibility Guide to check if VAAI is supported for the Array model. It should be supported as the other VAAI features are shown as supported.

  2. According to EMC documents, the VAAI Dead space reclamation feature is supported only for Thin LUNs:
    "Unmap works with VMFS datastores provisioned using VNX thin LUNs."

 

Affected Products

VNX2 Series

Products

VNX2 Series, VNX5100
Article Properties
Article Number: 000052259
Article Type: Solution
Last Modified: 20 Oct 2025
Version:  5
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