hesela.devRAID rebuild
A RAID rebuild reconstructs the required contents of a replacement or out-of-sync member from the array's surviving redundancy.
Linux MD calls recovery the construction of a hot spare to replace a missing or failed member, and distinguishes it from resync after an unclean shutdown and check or repair scans [1]. Rebuilding redundancy is not restoration of an independent backup.
Relations
- related
- raid, degraded-array, hot-spare, resilver, data-scrubbing, raid-write-hole, parity-declustering, distributed-spare
Limitations
- A rebuild cannot reconstruct a region for which the surviving data and parity no longer provide enough information. [2]