What does NTSTATUS 0xC000049E (STATUS_STORAGE_LOST_DATA_PERSISTENCE) mean?

STATUS_STORAGE_LOST_DATA_PERSISTENCE

The storage stack no longer guarantees persistence

This status indicates a severe storage capability or media condition: the device cannot guarantee that data remains persistent as expected. Treat it as an integrity and availability problem, not just transient I/O failure.

Determine which write or flush lost its persistence guarantee and whether the device, virtual-disk layer, or cache reported the change. Preserve storage events around the first durability warning.

What to inspect

• Collect device health, power-loss, and controller events.
• Check whether the device entered maintenance, write-protect, or degraded mode.
• Validate data from a known-good backup or replica if persistence was lost.

References for STATUS_STORAGE_LOST_DATA_PERSISTENCE

• Microsoft Open Specifications: NTSTATUS values
• Microsoft: Troubleshoot Disk Management
• Microsoft: Disk Management snap-in statuses