Lacie 1TB Big Disk Extreme+ RAID 0 recovery
February 13th, 2010, 9:47
Hi,
Firstly I will give you the low down on the situation.
I am late on this recovery and have been given the drive after a computer shop tried to recover the data assuming that the drives were JBOD config. When I got the drive the HDD's were clicking and failing to spool up but USB was working, I immediately thought somthing was wrong with the 12V power lne in the PSU, upon investigation this was the cause. Having now plugged this up to a couple of decent PSU's I have found nothing worong with the enclosure. Due to the fact it has been opened up and looked at the RAID 0 config is all to pot and one drive I believe has partition damaged.
Okay, on to what I have done.
It would also appear that the drives are in a random order within the enclosure and I was stuggling to find drive 0, although I think I have sorted that as its the only drive with readable partitions on it. Secondly I am having issues finding the stripe size, I have tried numerous sizes, 16 upto 256 with mixed results. The Jpgs are all corrupt (shearing!) no matter what stripe size I am using. My knowledge of HDD recover is limited, but I know some of the do's and don'ts and am currently getting fed up of having to re-image the disks as each one takes about 22 hours
I have purchased an identical LAcie HDD with the intention of backing up to this, originally I thought maybe the board had fried so intended to swap the drives. Now the power has been found as the problem I do not believe any benefit will be gained from this.
I am using R-studio for this recovery.
Any advice would be greatly appreciated as an entire business and close personal friend's livelihood is in my hands, no pressure :s (I have already preached the backup speach)
Hardware is as follows;
Lacie 1Tb Big Disk Extreme+ (tripe interface USB, Firewire400/800)
2 x Samsung 500GB SATA drives
Firstly I will give you the low down on the situation.
I am late on this recovery and have been given the drive after a computer shop tried to recover the data assuming that the drives were JBOD config. When I got the drive the HDD's were clicking and failing to spool up but USB was working, I immediately thought somthing was wrong with the 12V power lne in the PSU, upon investigation this was the cause. Having now plugged this up to a couple of decent PSU's I have found nothing worong with the enclosure. Due to the fact it has been opened up and looked at the RAID 0 config is all to pot and one drive I believe has partition damaged.
Okay, on to what I have done.
It would also appear that the drives are in a random order within the enclosure and I was stuggling to find drive 0, although I think I have sorted that as its the only drive with readable partitions on it. Secondly I am having issues finding the stripe size, I have tried numerous sizes, 16 upto 256 with mixed results. The Jpgs are all corrupt (shearing!) no matter what stripe size I am using. My knowledge of HDD recover is limited, but I know some of the do's and don'ts and am currently getting fed up of having to re-image the disks as each one takes about 22 hours
I have purchased an identical LAcie HDD with the intention of backing up to this, originally I thought maybe the board had fried so intended to swap the drives. Now the power has been found as the problem I do not believe any benefit will be gained from this.
I am using R-studio for this recovery.
Any advice would be greatly appreciated as an entire business and close personal friend's livelihood is in my hands, no pressure :s (I have already preached the backup speach)
Hardware is as follows;
Lacie 1Tb Big Disk Extreme+ (tripe interface USB, Firewire400/800)
2 x Samsung 500GB SATA drives
Re: Lacie 1TB Big Disk Extreme+ RAID 0 recovery
February 13th, 2010, 10:47
Please don't attempt this recovery if you are not willing to make images of both drives first.
This is a standard "best practice" and should not be bypassed.
This is a standard "best practice" and should not be bypassed.
Re: Lacie 1TB Big Disk Extreme+ RAID 0 recovery
February 13th, 2010, 11:27
Very important what " jono" told u, and if u get data corrupted, its because or order its incorrect or stripe set, even this Lacie Big Exterme units, works inside on a complex arrary.
Re: Lacie 1TB Big Disk Extreme+ RAID 0 recovery
February 13th, 2010, 11:43
Not to worry, I am making images of the dirves but having done this 4 times now at 22 hours each I kind of hoped there was a third way as I have limited storage for the images.
I kind of hoped there was a third way as I have limited storage for the images.
Re: Lacie 1TB Big Disk Extreme+ RAID 0 recovery
February 13th, 2010, 11:53
h BTW I am using the images on the new lacie drive to do recovery. the damaged originals are just idle. Sorry if I didn't clarify that!
Re: Lacie 1TB Big Disk Extreme+ RAID 0 recovery
February 13th, 2010, 11:58
fizzgig wrote:Not to worry, I am making images of the dirves but having done this 4 times now at 22 hours each
You either do it a proper way or no way.
Re: Lacie 1TB Big Disk Extreme+ RAID 0 recovery
February 13th, 2010, 14:55
You really shouldn't have to riamge the disks over and over. the intent is to get the data off of the disks, not repair them so they can be pu back into service. Rstudio is the way to do it, you just need to find the proper arrangement and stripe size for the disks. This is pretty easy on a raid 0. Just open up a hex editor and look for the "shifts" in the data.
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