Witness host space efficiency differs from the rest of the cluster.
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Witness host space efficiency differs from the rest of the cluster.

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Article ID: 326898

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Updated On:

Products

VMware vSAN

Issue/Introduction

Symptoms:
"Invalid virtual machine configuration. Object policy is not compatible with datastore space efficiency policy configured on the cluster" error message.

Environment

VMware vSAN 7.0.x
VMware vSAN 6.7.x
VMware vSAN 6.5.x

Cause

Cannot create an object in a stretch cluster or a ROBO cluster with space efficiency policy set to "Compression only" or "Deduplication and compression".

Witness always has a space efficiency of None. Due to this, when creating an object in a stretch cluster or a ROBO cluster with space efficiency policy set to "Compression only" or "Deduplication and compression", the object creation will fail with "Invalid virtual machine configuration. Object policy is not compatible with datastore space efficiency policy configured on the cluster" error message.

Resolution

Upgrade vCenter and ESXi to 8.0

Workaround:
To workaround this issue select "no preference" as space efficiency preference when creating the storage policy
SP-no-preference.pngThis will result in the space efficiency defaulting to the the selected datastore.

Additional Information

Impact/Risks:
Object creation fails