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 Post subject: RAID 50 XOR Set Separator
PostPosted: October 13th, 2015, 12:14 
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Joined: April 3rd, 2011, 0:19
Posts: 2003
Location: Providence, RI
I've started work on a project to brute force XOR Hex values pulled from members of RAID 50 sets and separate them into their respective RAID 5 sets. The need for this came up when I had to handle a 16 drive array with no idea which drives belonged in which set.

I've posted a sample of what I'm putting together here on my forum: https://www.data-medics.com/forum/raid- ... t1036.html

I'd post it here too, but I lack the necessary admin privileges to embed an Excel sheet into a post. Looking for any input, suggestions, or anyone who'd like to be involved with this project. Getting into bigger arrays, this might get to be a mess.

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 Post subject: Re: RAID 50 XOR Set Separator
PostPosted: October 16th, 2015, 15:36 
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Joined: December 14th, 2011, 8:24
Posts: 60
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You can probably use entropy analyzer from our ReclaiMe Pro to solve half of the problem. You can use it to convert 16 disks into 8 pairs, from which point manual analysis should be fairly easy.


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 Post subject: Re: RAID 50 XOR Set Separator
PostPosted: October 23rd, 2015, 13:50 
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Joined: August 15th, 2006, 3:01
Posts: 3464
Location: CDRLabs @ Chandigarh [ India ]
ReclaiMe wrote:
You can probably use entropy analyzer from our ReclaiMe Pro to solve half of the problem. You can use it to convert 16 disks into 8 pairs, from which point manual analysis should be fairly easy.


Hi ,
I did send a Eval Request To Reclaime but never used the tool .Will do again jared has a good experience in his forum also for your tool

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 Post subject: Re: RAID 50 XOR Set Separator
PostPosted: October 24th, 2015, 9:45 
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Joined: March 7th, 2009, 12:43
Posts: 1080
Location: Angel Data Recovery
Sometimes better and faster to use service fw data located at the beginning or end of each hdd, where you can find order of ther drives:
Sample for Areca controllers:


Attachments:
AnexTEK storage iSCSI 16 drives , based on Areca , with meta.JPG
AnexTEK storage iSCSI 16 drives , based on Areca , with meta.JPG [ 219.39 KiB | Viewed 9261 times ]

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 Post subject: Re: RAID 50 XOR Set Separator
PostPosted: December 20th, 2015, 7:23 
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Joined: May 21st, 2005, 14:32
Posts: 5
Location: Phuket, Thailand
DR-Kiev wrote:
Sometimes better and faster to use service fw data located at the beginning or end of each hdd, where you can find order of ther drives:
Sample for Areca controllers:


Unfortunately not all controllers write that information to the drives...


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