MultiDrive – free backup, clone & wipe disk utility from Atola Technology

Main » Forums home » Conventional hard drives

All times are UTC - 5 hours [ DST ]



Post new topic Reply to topic  Page 1 of 1
  [ 7 posts ] 
  Previous topic | Next topic 
Author Message
ici_lemmy
 Post subject: [URGENT] parity in HP RAID 6 Case
PostPosted: August 28th, 2014, 14:21 
Offline
User avatar

Joined: May 3rd, 2011, 9:52
Posts: 177
Location: France
Hello RAID gurus,

I have a case with an HP RAID 6.
There was 5 working drives and 4 defective drives. I was able to repair two of the defective drives.
So now I have 7 working drives out of 9. It should be enough to recover the data.

I was able to verify the type of RAID and find the order, the first drive, the block size and the delay.
So I have almost everything. My problem is with the parities. The first one is a simple XOR, just like in RAID 5 but I don't know (and can't find) how the second one is calculated and it doesn't seems to be Reed Solomon, because when I try that in R-Studio, it doesn't work as expected.

So, does someone knows (and/or is willing to give me a hint) how the second parity is calculated in HP RAID 6 ?

_________________
Lemmy
Top
 Profile  
 
Dmitri
 Post subject: HP RAID 6 recovery
PostPosted: August 28th, 2014, 18:15 
Offline

Joined: February 8th, 2014, 8:08
Posts: 456
Location: Eastern Europe /recovering worldwide/
ici_lemmy wrote:
I have a case with an HP RAID 6.
There was 5 working drives and 4 defective drives...
Please check your PM.

_________________
• Remote RAID, NAS, SAN, VMware, DVR (CCTV), flash and tape recovery. Data recovery support.
Top
 Profile  
 
microsoftengineer
 Post subject: Re: [URGENT] parity in HP RAID 6 Case
PostPosted: August 29th, 2014, 5:31 
Offline

Joined: January 4th, 2010, 5:12
Posts: 215
Location: Dubai U.A.E
Dr.Kiev is the Best person to Contact about ALL Types of Raid Cases ...
Top
 Profile  
 
ici_lemmy
 Post subject: Re: [URGENT] parity in HP RAID 6 Case
PostPosted: August 29th, 2014, 15:55 
Offline
User avatar

Joined: May 3rd, 2011, 9:52
Posts: 177
Location: France
Case close.
Thank for your PM...

_________________
Lemmy
Top
 Profile  
 
hhddrec
 Post subject: Re: [URGENT] parity in HP RAID 6 Case
PostPosted: September 1st, 2014, 8:46 
Offline
User avatar

Joined: August 13th, 2008, 13:10
Posts: 811
Location: World
can you report us recipe?
Top
 Profile  
 
ici_lemmy
 Post subject: Re: [URGENT] parity in HP RAID 6 Case
PostPosted: September 8th, 2014, 6:01 
Offline
User avatar

Joined: May 3rd, 2011, 9:52
Posts: 177
Location: France
hhddrec wrote:
can you report us recipe?

The controler was not dead... And *it* knows how to rebuild with 2 missing disks

_________________
Lemmy
Top
 Profile  
 
hhddrec
 Post subject: Re: [URGENT] parity in HP RAID 6 Case
PostPosted: September 8th, 2014, 8:14 
Offline
User avatar

Joined: August 13th, 2008, 13:10
Posts: 811
Location: World
thanks Ici Lemmy
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 7 posts ] 

Main » Forums home » Conventional hard drives

All times are UTC - 5 hours [ DST ]

Who is online

Users browsing this forum: Google [Bot] and 75 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Switch to mobile style
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group