Getting Raid 5 parameters

Discussions on using the professional data recovery program R-STUDIO for RAID re-construction, NAS recovery, and recovery of various disk and volume managers: Windows storage spaces, Apple volumes, and Linux Logical Volume Manager.
charm_quark
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Joined: Tue Mar 04, 2014 5:15 pm

Getting Raid 5 parameters

Post by charm_quark » Wed Mar 05, 2014 3:42 pm

Hi guys

Background:
I have been goggling around and could not find what i needed.

My current predicament is that I am recovering a raid 5 disks, whose controller just seemed to have died on me. To make matters worse, my colleague in all his wisdom hoped that by swapping the disk around it would fix the problem. yah...

Problem:
So i have 5 drives that of which i dont know the order. However by manual hex inspection and the assistance of (http://www.r-tt.com/Articles/Finding_RAID_parameters/) i have eliminated disk no5 as the spare.

But i still cannot deduce the rest of the parameters, since this was a secondary drive it does not have a MBR, it is a NTFS. ( using "Boot sector NTFS pattern")

the problem is that by following the above link it say that
What is important: The signature FILE ends with 0, which means that the file record number is not overwritten with a fixup. If it had ended with * (FILE*), we would not have been able to proceed further in our search and would have needed to use another technique.


so I need to ask what is the other technique. since all the "FILE" I have are with an *.

Please advise if you can.

Thanks in advance

PS: I also did use "Reclaime" in the hopes that it would assist. Which it sadly did not.

Alt
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Re: Getting Raid 5 parameters

Post by Alt » Thu Mar 06, 2014 6:10 am

charm_quark wrote: My current predicament is that I am recovering a raid 5 disks, whose controller just seemed to have died on me. To make matters worse, my colleague in all his wisdom hoped that by swapping the disk around it would fix the problem. yah...
What actually did he do with the disk? Only swapping or RAID rebuilding?

charm_quark
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Joined: Tue Mar 04, 2014 5:15 pm

Re: Getting Raid 5 parameters

Post by charm_quark » Thu Mar 06, 2014 10:36 pm

He only mixed the order of the drives. He did not rebuild raid.

Alt
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Re: Getting Raid 5 parameters

Post by Alt » Fri Mar 07, 2014 3:42 am

If you tried R-Studio's RAID parameter detection unsuccessfully, the only way to help the situation is to go to a professional data recovery specialist, I'm afraid.

charm_quark
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Joined: Tue Mar 04, 2014 5:15 pm

Re: Getting Raid 5 parameters

Post by charm_quark » Fri Mar 07, 2014 10:40 am

so I need to ask what is the other technique. since all the "FILE" I have are with an *.
i was wondering what the other technique was.

sadly that is what i would have to do.. ( but I don't get to learn anything in the process)

Alt
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Re: Getting Raid 5 parameters

Post by Alt » Fri Mar 07, 2014 12:44 pm

That technique is much more complex and requires a deep knowledge of the NTFS system.

charm_quark
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Re: Getting Raid 5 parameters

Post by charm_quark » Sat Mar 08, 2014 2:37 am

do you have a link that I can do further reading

Alt
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Re: Getting Raid 5 parameters

Post by Alt » Mon Mar 10, 2014 12:51 pm

Well, I don't know one, I'm afraid.

charm_quark
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Re: Getting Raid 5 parameters

Post by charm_quark » Fri Apr 11, 2014 3:23 pm

Thanks none the less :)

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