Messages

91

Users / Re: URGENT 810 Software RAID failed after power outage

« on: July 09, 2013, 09:16:16 am »

haha ok geez something has changed.  im trying to figure out what happened. 

92

Users / Re: URGENT 810 Software RAID failed after power outage

« on: July 09, 2013, 07:33:09 am »

OK, first lets do this.

fdisk -l to make sure the partitions are named the same after replacing the drive.  post the output

93

Users / Re: URGENT 810 Software RAID failed after power outage

« on: July 06, 2013, 09:28:10 am »

OK, this is good actually.  We know what the problem is finally.  Besides a bad HDD.  I will show you where to look in a few hours.  Doing some work this friday.  Don't panic this is fixable.

94

Users / Re: URGENT 810 Software RAID failed after power outage

« on: June 29, 2013, 09:26:10 am »

how did you make out beeker?

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Users / Re: URGENT 810 Software RAID failed after power outage

« on: June 18, 2013, 07:17:02 pm »

Yes, that is exactly right.  Good Luck Beeker. 

96

Users / Re: URGENT 810 Software RAID failed after power outage

« on: June 18, 2013, 05:54:52 am »

RAID does not like changes being made.  Problems can arise in linux from just trying to rebuild the array with one disk missing.  If the drive is there and say linux sees a write error or read error it will mark that dirty and should start using the spare.  In your case it knows that f is part of the array.  If d just isn't there this could create a problem.  Even though it sees f and knows its a spare.  I don't know why honestly.  Just my experience.  Your best bet is to replace d, leave f where it is.  Then run the very first command you posted to verify it is rebuilding.  If it does not automagically rebuild you will need to run the two commands i posted to force it to rebuild.  That would be the smartest way of doing this.  Although i should mention, there is always a chance that something else could go very wrong.  RAID 5 is a piece of garbage.  I do not understand why it was so popular.  It puts the data on the disks like a tic tac toe game making it difficult to retrieve data.  There are tools that can do this though.  Knoppix has one.  What you do is make images of the disks.  Put the images on four more disks then have the tools try and rebuild the data.  In your case i don't think that will work.  Usually a four drive RAID 5 the fourth disk is the parity drive.  Where the three disk RAID 5 parity is usually broken up between all three drives along with the data.  So, on second thought backup probably isn't an option for you.  You could try, there is no harm in making images of the drives before you try and rebuild it.  At least that way, you can always send the images off for recovery if your significant other is making death threats.  Then just blame it on the company, they screwed up, act really mad.   

97

Users / Re: On screen keyboard keeps popping up in computing menu

« on: June 18, 2013, 04:19:38 am »

Done.  You guys are awesome, i hope you guys get told that a lot.   

98

Users / Re: URGENT 810 Software RAID failed after power outage

« on: June 18, 2013, 04:03:56 am »

Well, I do not recommend setting up the RAID again with out a spare.  Unless you back up the data.  Remember RAID 5 will survive one drive failure.  If more than that fails that it is it, donezo.  All that data is gone forever.  I recommend replacing the drive.  I know it sucks, but better safe than sorry.  If you do not want to heed this warning.  I would leave it as is and run those commands to see if it will rebuild.  I really stress being patient if you need another drive and can't get one right away though.

99

Users / Re: URGENT 810 Software RAID failed after power outage

« on: June 17, 2013, 05:28:28 am »

oops didn't see your post.  so yeah that is a good start.  once you got d showing again, give these two commands a go. assuming it doesnt rebuild itself on its own.


mdadm --stop /dev/md1
mdadm --assemble --force /dev/md1 /dev/sd[b,c,d,e,f]  

100

Users / Re: URGENT 810 Software RAID failed after power outage

« on: June 17, 2013, 04:53:16 am »

This is odd, if that drive is or was an active hot spare it should be partitioned and ready to write to if drive failure occurs.  I would think b,c,d would be the active drives and e the hot spare with f your backup hot spare.  Is this correct?

101

Users / Re: URGENT 810 Software RAID failed after power outage

« on: June 17, 2013, 04:24:22 am »

ok, i just noticed disk sdd1 did not appear in the fdisk -l report.  This is odd, we need to figure out what is going on there.  run mdadm -E /dev/sdd1 and post what it says.

102

Users / Re: URGENT 810 Software RAID failed after power outage

« on: June 17, 2013, 03:49:23 am »

wait a sec dont run that, wish there was an edit option.  gimme a sec

103

Users / Re: URGENT 810 Software RAID failed after power outage

« on: June 17, 2013, 03:45:42 am »

Ok, looks like all the drives are clean.  Your RAID is showing all the drives as spare (like in the pic) wasn't sure how accurate the gui is.  This may not be a superblock problem, but lets find out for sure.

Run

mdadm --assemble --scan -v

this will let us know which have bad superblocks and if that is indeed the problem. 

104

Users / Re: URGENT 810 Software RAID failed after power outage

« on: June 17, 2013, 03:01:31 am »

run each command and post results please

cat /proc/mdstat   


mdadm -E /dev/sdb1
mdadm -E /dev/sdc1
mdadm -E /dev/sde1

105

Users / Re: URGENT 810 Software RAID failed after power outage

« on: June 17, 2013, 02:17:32 am »

what about mdadm –detail /dev/md1.  It may be in the process of rebuilding which takes some time.