I run a 15 disk raid5 array. Unknowingly a contoller card failed which had 4 disks on it. And unfortunatly the Raid5 stayed online, doing its best. Now after replacing the controller the raid can not be brought on line. I would rather have corruption of anything changed on the array in the last 2 days then loose 4 disks. Quote: # mdadm --examine /dev/sdc1 /dev/sdc1: Magic : a92b4efc Version : 00.90.01 UUID : eed326c4:6cf58a43:d1b57676:5b765f6c Creation Time : Sun Nov 13 16:07:21 2005 Raid Level : raid5 Raid Devices : 15 Total Devices : 15 Preferred Minor : 0 Update Time : Mon Jun 12 11:08:09 2006 State : clean Active Devices : 11 Working Devices : 11 Failed Devices : 8 Spare Devices : 0 Checksum : c967848b - correct Events : 0.5456277 Layout : left-symmetric Chunk Size : 32K Number Major Minor RaidDevice State this 1 8 33 1 active sync /dev/sdc1 0 0 8 17 0 active sync /dev/sdb1 1 1 8 33 1 active sync /dev/sdc1 2 2 8 49 2 active sync /dev/sdd1 3 3 0 0 3 faulty removed 4 4 0 0 4 faulty removed 5 5 0 0 5 faulty removed 6 6 0 0 6 faulty removed 7 7 8 129 7 active sync /dev/sdi1 8 8 8 145 8 active sync /dev/sdj1 9 9 8 161 9 active sync /dev/sdk1 10 10 8 177 10 active sync /dev/sdl1 11 11 8 193 11 active sync /dev/sdm1 12 12 8 209 12 active sync /dev/sdn1 13 13 8 225 13 active sync /dev/sdo1 14 14 8 241 14 active sync /dev/sdp1 And is there a way if more then 1 disks goes offline, for the whole array to be taken offline? My understanding of raid5 is loose 1+ disks and nothing on the raid would be readable. this is not the case here. All the disks are online now, what do I need to do to rebuild the array? - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
