As you can see in the log, the write error recovered with auto reallocation! As I understand it, this is a normal event with today?s disks. I don?t think the disk should have been considered failed. Comments please? Thanks, Guy The spare disk resynced just fine. I never knew for over 24 hours! This is cool stuff! Jan 27 12:44:06 watkins kernel: SCSI disk error : host 2 channel 0 id 4 lun 0 return code = 8000002 Jan 27 12:44:06 watkins kernel: Info fld=0x7e5c81, Deferred sd08:71: sense key Recovered Error Jan 27 12:44:06 watkins kernel: Additional sense indicates Write error - recovered with auto reallocation Jan 27 12:44:06 watkins kernel: I/O error: dev 08:71, sector 8280704 Jan 27 12:44:06 watkins kernel: raid5: Disk failure on sdh1, disabling device. Operation continuing on 13 devices Jan 27 12:44:06 watkins kernel: md: updating md2 RAID superblock on device Jan 27 12:44:06 watkins kernel: md: sdc1 [events: 00000009]<6>(write) sdc1's sb offset: 17767744 Jan 27 12:44:06 watkins kernel: md: recovery thread got woken up ... Jan 27 12:44:06 watkins kernel: md2: resyncing spare disk sdc1 to replace failed disk Jan 27 12:44:06 watkins kernel: RAID5 conf printout: Jan 27 12:44:06 watkins kernel: --- rd:14 wd:13 fd:1 - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html