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How Long Should You Wait Before Calling a RAID Rebuild Stalled?
A rebuild is stalled only when work counters stop and logs show no normal pause or phase. Measure progress before restarting or forcing the array.
What Causes a RAID Array to Stay Degraded After a Replacement Disk Is Added?
A replacement must be eligible, assigned, rebuilt, and promoted to active membership. Detection alone does not return a RAID array to healthy status.
Can You Expand a Mirrored Array With Larger Drives One at a Time?
Many mirrors can grow through sequential larger-drive replacements, but only after each rebuild finishes and the array, partition, and filesystem are expanded.
How to Verify Checksums After Replacing a Failed Drive
A completed rebuild restores redundancy. Prove data integrity separately with a full scrub, trusted checksum manifest, metadata review, and app-level tests.
Why a RAID Rebuild Restarts After a Disk Disconnects
A second disconnect changes the trusted member set and can force a fresh recovery pass. Verify serials, metadata, logs, and source-drive health first.
What Are the Warning Signs That a RAID Scrub Is Finding New Damage?
Compare completed scrub reports, device counters, logs, and affected files to separate one repaired error from damage that is still increasing.
How to Tell Whether a Dropped RAID Disk or a Bad Drive Bay Is the Real Cause
A dropped RAID member does not automatically mean the disk failed. The real cause is the component the error follows after controlled checks and a powered-down swap. Start by preserving the array state, recording the drive...
NAS Storage Pool Is Online but One Shared Folder Is Missing: What to Check
Determine whether the data still exists and only its mount, encryption state, permissions, share definition, or service advertisement is missing before recreating anything.
