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STATUS_VOLMGR_VOLUME_MIRRORED
The target is mirrored, but this operation requires a non-mirrored volume
STATUS_VOLMGR_VOLUME_MIRRORED is the inverse of the mirror-required error. Volume Manager recognizes the target as mirrored and rejects an operation whose contract excludes mirrored volumes.
A mirrored volume contains more than one plex, with each plex holding a complete copy of the volume data. Operations designed for simple, spanned, or striped topology can make assumptions about extent ownership that are unsafe when multiple complete copies must remain consistent.
Query the volume type before choosing the management command. If the intended outcome is to alter a mirror, use the documented mirror-specific flow such as remove/break/repair semantics; do not retry the non-mirror operation after merely changing drive-letter or mount state.
What to inspect
- Confirm the volume type and number of plexes from current provider properties.
- Review which precondition of the requested command excludes mirrored volumes.
- Choose a mirror-aware operation if the goal is to remove, split, or repair redundancy.
References
- Microsoft VOLMGR definition of STATUS_VOLMGR_VOLUME_MIRRORED.
- Microsoft VDS model of mirrored volumes and complete-copy plexes.
- Microsoft dynamic-disk operations for removing or breaking mirrors.
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