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How to recover data from iomega NAS with 4 HD in a RAID 5

Posted on 2011-03-10
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Last Modified: 2012-06-21
Hello everyone, we have an iomega NAS that diead on us.  It will power on but as soon as it either gets to the logon screen OR shortly after login on the screen goes black the HD lights on the front panel blink orange.  We've tried safe mode and get the same result.

Can we take out these sata drives and plug them say in an HP workstation that supports raid and boot up?  I've been meaning to try that as a last resort but afraid that it will erase the data.  

And what about a backup you ask? Well, users were not supposed to save important stuff onto that particular share in the NAS but as usual, they dont listen and now some have "Critical" files in there.

So what are my options that dont involve sending the drives in to some expensive data recovery center?

Thanks,

ceez
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Question by:itbamiami
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9 Comments
 
LVL 16

Expert Comment

by:medvedd
ID: 35098336
You can try this program:

http://www.runtime.org/nas-recovery.htm

You have to pull drives from NAS and make images of drives.
You need a Windows computer with large hard drive(s), depending
on size of your NAS.
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LVL 25

Expert Comment

by:Brian B
ID: 35098467
If you wanted to try another NAS, it would have to be the same kind since other units would have different controllers and not recognize how the drives are set up.
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LVL 47

Expert Comment

by:David
ID: 35098828
I've actually done this on iomega NAS in RAID5, twice.  Once was unrecoverable due to a stupid firmware bug that ended up blowing data away after a spare was put in and another drive failed.
The other via standard LINUX techniques and in-house designed software.  The runtime.org site shows reasonable information.   There will be 2 file systems, one for the NAS Operating system itself, the other for the data that is partitioned into CXFS (cant remember) or XFS file system.  

So for the $99 the runtime software is the deal of the century. It will probably work.

Caveat... make binary images of each disk the runtime software can do this, but first run diags to see if they are in stress.  Cloning is I/o intensive and could fail over a dodgy disk.  If data is valuable then make sure you know the disks can survive cloning, or at least take the disks to a recovery lab and have them clone them onto some scratch drives safely. That won't cost much!
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Accepted Solution

by:
itbamiami earned 0 total points
ID: 35133103
Hello everyone.  I didnt specify but it's a Windows 2003 NAS (appliance edition).

I tried that runtime software trial but it failed in successfully loading the raid.  I tried RAID Recovery for Windows and Raid Reconstructor.

At the end I tried what I was dreading...Plugged in the four drives to an HP XW4300 and booted up in safe mode.  I was able to log in and in disk management it showed the four drives with an 8gig partition for the OS and the remining 200 odd gigs.  The partitions showed as active, I just right clicked on one of them and chose reactivate.  It went from failed to synching and it showed a drive letter.  So I can view the folders now.

I dont know how this would play out with a different NAS situation since I know that some RAID configs are saved in the controllers, maybe not on these low end iomegas.

Thanks everyone for the assistance.

ceez
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Author Comment

by:itbamiami
ID: 35133113
and do I close this question by accepting my post as a solution and grading it accordingly?!?1

thanks
0
 
LVL 47

Expert Comment

by:David
ID: 35133225
hold it ... you could very well have destroyed what was left of your data by doing that.   Actually it is likely you did.  If you have any large video or music files, play them.  I suspect they are broken, but it is too late now because once you went down this path you can't turn back unless you want to pay thousands of dollars to undo this damage.
0
 
LVL 25

Expert Comment

by:Brian B
ID: 35180549
I hope everything worked out for you and your files are in tact per dlethe's concern.

As for closing the question, yes, please proceed to accept whatever answers you feel were helpful and assign points as you see fit.
0
 

Author Comment

by:itbamiami
ID: 35195558
alright I was able to get my data back how I described above.  I copied all the data to an external HD and I am good to go.

I guess that iomega windows nas did not have the raid information on the controller.

thanks to everyone.
0
 

Author Closing Comment

by:itbamiami
ID: 35225520
I was able to figure out the problem myself
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