I said: > Do this command to determine which disk is being re-built: > cat /proc/mdadm You said: I do not have a /proc/mdadm. All I have is /proc/mdstat. Thanks! My bad! cat /proc/mdstat Now I don't think /proc/mdstat will help. Send me the output from these 2 commands: Cat /proc/mdstat mdadm -D /dev/md0 Omit the disk that is being re-built!!!!!! Not hde1. hde1 was added as a spare. It may still have good data. The disk being re-built is toast! The other 2 may also have good data. Take your time!!! Re-read everything. Then when you get to "re-read everything", do it again! :) If you are not sure, just ask another question. Lots of odd things can go wrong. You can recover from most of them!! But, the documentation on recovery is non-existent! I have learned what I know from monitoring this list, asking on this list, and playing with the stuff. Once we get things working we will try to determine why your re-build is so slow! Guy -----Original Message----- From: Stephen Hargrove [mailto:stephen@xxxxxxxxxxxxx] Sent: Wednesday, July 07, 2004 2:24 PM To: Guy Cc: linux-raid@xxxxxxxxxxxxxxx Subject: RE: Should I Start Over? Guy said: > You did not use the "missing" keyword. You just created a 3 disk array. > If > your array had 3 disks, you should have listed 2 of them and the "missing" > keyword for the third. Hrm. Ok. I should have read the man page before proceeding. Well, it's official. I am an idiot. > Why did you add a spare(hde1)? See above. > You should have done something like this: > mdadm --create /dev/md0 --level=5 --raid-devices=4 /dev/hdg1 /dev/hdd1 > /dev/hdc1 missing # mdadm --create /dev/md0 --level=5 --raid-devices=4 /dev/hdg1 /dev/hdd1 /dev/hdc1 missing mdadm: /dev/hdg1 appears to be part of a raid array: level=5 devices=3 ctime=Wed Jul 7 08:11:18 2004 mdadm: /dev/hdd1 appears to be part of a raid array: level=5 devices=3 ctime=Wed Jul 7 08:11:18 2004 mdadm: /dev/hdc1 appears to be part of a raid array: level=5 devices=3 ctime=Wed Jul 7 08:11:18 2004 Continue creating array? n Yeah, it looks like I screwed the pooch on this one. The array was composed of hd[gdc] with hde as the spare. I managed to stop the rebuild at 1.1% complete. I guess at this point I don't have anything to lose by letting it rebuild. Would there be any benefit to omitting hdg and letting it rebuild from hd[cde]? Like this: # mdadm --create /dev/md0 --level=5 --raid-devices=4 /dev/hdd1 /dev/hdc1 /dev/hde1 missing > Do this command to determine which disk is being re-built: > cat /proc/mdadm I do not have a /proc/mdadm. All I have is /proc/mdstat. Thanks! -- Steve - 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
