<snip> > Use a command like this to cause your disks to have activity, then look for > the blinking lights: > dd if=/dev/md/1 of=/dev/null bs=64k > Oh swell!.... I have one blinking light for ALL the disks on all 12 of our raid systems. There has to be a better way. Michael > Guy > > -----Original Message----- > From: linux-raid-owner@xxxxxxxxxxxxxxx > [mailto:linux-raid-owner@xxxxxxxxxxxxxxx] On Behalf Of Turbo Fredriksson > Sent: Tuesday, December 21, 2004 6:09 AM > To: linux-raid@xxxxxxxxxxxxxxx > Subject: Which (physical) disk is broken? > > I've forgot, and I can't seem to find out which physical disk > is broken/removed from an array... > > ----- s n i p ----- > aurora:~# mdadm -D /dev/md/1 > /dev/md/1: > Version : 00.90.01 > Creation Time : Wed Oct 27 08:12:44 2004 > Raid Level : raid5 > Array Size : 141483520 (134.93 GiB 144.88 GB) > Device Size : 17685440 (16.87 GiB 18.11 GB) > Raid Devices : 9 > Total Devices : 8 > Preferred Minor : 1 > Persistence : Superblock is persistent > > Update Time : Tue Dec 21 12:04:43 2004 > State : dirty, degraded > Active Devices : 8 > Working Devices : 8 > Failed Devices : 0 > Spare Devices : 0 > > Layout : left-symmetric > Chunk Size : 32K > > Number Major Minor RaidDevice State > 0 8 49 0 active sync > /dev/scsi/host3/bus0/target4/lun0/part1 > 1 8 81 1 active sync > /dev/scsi/host3/bus0/target8/lun0/part1 > 2 8 97 2 active sync > /dev/scsi/host3/bus0/target9/lun0/part1 > 3 8 241 3 active sync > /dev/scsi/host4/bus0/target4/lun0/part1 > 4 65 1 4 active sync > /dev/scsi/host4/bus0/target5/lun0/part1 > 5 65 17 5 active sync > /dev/scsi/host4/bus0/target8/lun0/part1 > 6 65 33 6 active sync > /dev/scsi/host4/bus0/target9/lun0/part1 > 7 65 113 7 active sync > /dev/scsi/host4/bus0/target14/lun0/part1 > 8 0 0 -1 removed > UUID : d0b4e775:290f5785:2e6ad7d1:5a66178b > Events : 0.974012 > ----- s n i p ----- > > I _THINK_ (!!) it's '/dev/scsi/host4/bus0/target15/lun0/part', but > I'm not sure.... Don't want to yank a perfectly working disk :) > > ----- s n i p ----- > aurora:~# mdadm -E /dev/scsi/host4/bus0/target15/lun0/part1 > mdadm: No super block found on /dev/scsi/host4/bus0/target15/lun0/part1 > (Expected magic a92b4efc, got 00000000) > ----- s n i p ----- > > Is there any way I can find out exactly which disk 'number 8' is? > > ----- s n i p ----- > aurora:~# mdadm --version > mdadm - v1.6.0 - 4 June 2004 > aurora:~# uname -a > Linux aurora 2.6.8.1 #1 SMP Sun Dec 12 21:04:58 CET 2004 sparc64 unknown > ----- s n i p ----- > -- > Ortega assassination explosion FBI president PLO Iran domestic > disruption genetic Ft. Bragg Rule Psix $400 million in gold bullion > Clinton Cocaine Treasury > [See http://www.aclu.org/echelonwatch/index.html for more about this] > - > 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 > > - > 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 > - 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
