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VDS_E_LUN_DYNAMIC_OFFLINE
VDS_E_LUN_DYNAMIC_OFFLINE distinguishes an offline dynamic disk from the online dynamic state. VDS cannot coordinate LUN shrink while the dynamic pack and its volumes are inaccessible, because current extents and filesystem ownership cannot be verified.
Restore and validate the dynamic pack first
- Read disk offline reason and pack status.
- Resolve SAN policy, missing paths or foreign-pack state before bringing the disk online.
- Enumerate all volumes and plexes after recovery, then reconsider the shrink request.
Forcing the array LUN smaller while the dynamic disk is offline risks cutting off extents whose layout is only represented in LDM metadata. Do not treat offline state as evidence that the disk is unused. Recover visibility and obtain a consistent layout before any capacity reduction.
Disk properties · IVdsPack · Basic and dynamic disks
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