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Chkdsk running for 9 hours!

Posted on 2013-10-30
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Last Modified: 2013-11-04
I am running a chkdsk on 2 iscsi targets (which are on the same NAS) using two different servers (VMs). Both have been running for 9 hours and both seem to be stuck. One is stuck on "10 percent complete etc", while the other is stuck on "Correcting error in index $0 for file 25".

Is this normal? Has it frozen?
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Question by:HIBS_ICT
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by:rindi
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A chkdsk can take very long, it depends on the size of the partition you are checking, the number of errors it finds etc. It will also sometimes appear to be stuck even if it isn't.
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by:Steven Harris
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My experience has been something around 1-1.5 hours per 100GB of disk space.  What sizes are you looking at?

Just for grins:  I watched a 2TB HDD at 98% capacity during a chkdsk process run for 2.5 weeks.
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by:HIBS_ICT
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Thanks for your comments so far.

We're dealing with 27TB here so, yeah, sounds like it's gonna take a while.

2.5 weeks!!! Not liking the sound of that at all. =(

Is there any way I can tell if it's actually going or not? e.g. some sort of status report? LED's on the server? a blinking cursor?

There are only a couple of files I need from the drive. Any software I can use to extract the data?
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by:nobus
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disk activity lights often are  the best indication
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by:rindi
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Why don't you just restore your files from the backups?
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by:noxcho
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What command have you given to CHKDSK? F? R? Or both?
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by:Steven Harris
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There are only a couple of files I need from the drive.

Yeah, I probably wouldn't have run chkdsk in that situation myself, but then again, I don't know what all you have tried to this point either...

2.5 weeks!!! Not liking the sound of that at all. =(

To be fair, this was a control test on an abused drive that was nowhere near mission critical.  We turned it on and basically walked away, letting it do it's thing.  Amazingly, chkdsk was able to repair the drive enough to allow us to proceed with data recovery.

Any software I can use to extract the data?
I would not recommend halting the chkdsk at this point unless you have a very thorough backup in place where the data can be retrieved, and can also risk trashing these drives.
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by:HIBS_ICT
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I've restored the files from backups and now our site is running off a temporary server with physical harddrives attached to it. Meanwhile the chkdsk is still running (with /f and /r switches) on the faulty partition.

It has now been running for 4-5 days. Shall I abandon ship, reformat, and recopy files back?
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I would, yes, but before you reformat, I suggest you check each disk in the array for any hardware problems, and replace it if there are any. I'd additionally not partition them in one big 27TB chunk, but rather into smaller, more manageable partitions. That would make future file-system problems that need chkdsk to run faster.
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