After a failed RAID rebuild, avoid another trial-and-error rebuild. Preserve the member identities, current configuration and logs, and decide whether qualified recovery assessment is needed. The goal is to protect the remaining source state before trying to make the array operational again.
Stop changes that obscure the history
Do not initialize a replacement array, clear metadata or move members between slots without recording their original positions. Avoid firmware changes or repair commands whose effects on this configuration are not understood. If a disk is unstable, repeated power cycles and scans are not a neutral diagnostic sequence.
Coordinate with the system administrator to reduce unnecessary writes and preserve available logs. Record when the rebuild began, which disk was replaced, what failed and what actions occurred afterward. Keep exact messages where possible, with credentials and private identifiers removed from any shared report.
Build a member and incident record
For each member, note original slot, serial number, capacity, reported condition and whether it was original or a replacement. Include the RAID level, controller or NAS, known layout parameters and any configuration export. Use the member and image record to keep disks, images and incident notes together. Label photographs of the slots if they help preserve physical identity.
If images already exist, associate each with the source member and note acquisition errors. Do not overwrite originals or sole images with reconstructed output. Imaging an unstable source may itself need specialist judgment; an instruction to preserve evidence is not an instruction to force repeated reads.
Check independent copies
Inspect backups and snapshots that remain accessible without changing the failed state. A usable earlier copy may satisfy the immediate business need even while the array incident remains unresolved. Verify versions and required dependencies before restoring over current data elsewhere.
Do not confuse a backup of a configuration file with a backup of the missing file content. Likewise, RAID redundancy is not necessarily a preserved historical version after deletion, corruption or a failed write sequence.
Prepare for professional assessment
Provide the member map, incident timeline, relevant logs and a description of the files needed. Ask what diagnosis or acquisition will change the source and what approval is required before work proceeds. Keep the originals together with their mapping rather than supplying one unexplained disk from a multi-member set.
XRecovery’s documented RAID support concerns identifiable, readable RAID 0, 1, 5 and 6 sources. It is not an assurance that a failed rebuild with missing, inconsistent or unknown inputs can be reconstructed automatically. A scan can retrieve surviving files, but it does not repair the array.
If a supported route eventually supplies readable files, export them to separate storage and validate their contents. Array repair or another rebuild remains a distinct decision after the needed files are protected.
For the next step, see RAID File Recovery: Identify the Array Before Choosing a Route.