What does HRESULT 0x80045331 (FSRM_E_DIFFERENT_CLUSTER_GROUP) mean?

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FSRM_E_DIFFERENT_CLUSTER_GROUP there are at least two paths which reside on different cluster shared disks which are not in the same cluster resource.

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FSRM_E_NOT_CLUSTER_VOLUME	FSRM_E_REPORT_TYPE_ALREADY_EXISTS

FSRM_E_DIFFERENT_CLUSTER_GROUP

FSRM_E_DIFFERENT_CLUSTER_GROUP (0x80045331) FSRM detected paths on different cluster shared disks that do not belong to the same cluster resource group. A single cluster-aware operation cannot safely treat them as one scope.

What to check

Map every configured path to its cluster disk and resource group.
Keep a single FSRM operation within one compatible cluster-resource group, or split it into separate operations.
Check ownership and online state before changing group membership or FSRM scope.

Get-ClusterGroup

Microsoft: FSRM troubleshooting guidance

Microsoft: FSRM overview

Microsoft: FileServerResourceManager PowerShell module

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