Tool to connect multiple RAID drives

Is there any tool available I can connect 3 SATA drives into my PC(Laptop or Desktop). Please advise.
Byas_SahaAsked:
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Byas_SahaAuthor Commented:
I should clarify my question little bit: I want to connect 3 HDD from my failed NAS drive into a non-RAID controller. I want to connect that controller into a PC so that I can try to recover data from that failing NAS drive. Please advise.
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warddhoogheCommented:
if the NAS is broken, its easiest and fastest to get the exact same NAS brand/model and put your drives in there. Follow documentation not to reinitialise the drives. if u have a NAS like QNAP, it will automatically detect and continue the RAID if the discs are in the same position as your broken one. (tested this myself a few months ago)
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DavidPresidentCommented:
Lots of external USB-attached enclosures out there, I can't recall seeing any 3-drive enclosures, but plenty of 1 and 2-bay USB-attach enclosures in the $20 range.  Then you can do the work with a laptop.  But remember, I/O speed will drop to USB speeds.

But important ... if the drives are in stress and you are running diagnostics, instead of copying blocks and examining metadata with hex editors, then you need to use a NATIVE SATA controller. The USB adapters translate ATA commands to SCSI commands, so the low-level commands used by the premium recovery software won't translate.

In that case, you can buy a SATA controller for a laptop, if you have a cardbus or docking station support.  Other than that, for $25 or so, you should be able to get a PCI-based SATA controller.
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Byas_SahaAuthor Commented:
Hi wardhooqhe,

Thanks for your posting. Let me explain my situation. I had a working NAS(same model). I took all the drives from there and put the broken ones not knowing about "not to reinitialise" factor. Do you think it is already too late?

Also, should I try the 1st HDD that was bad insted the one Buffalo sent me?

Another question, I need to put back the other NAS drive(good one)...should I follow any specific direction?

Pls advise.
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DavidPresidentCommented:
This is very different situation.   When you initialized, you destroyed the directory structure, and it laid out a fresh linux file system.  Also it destroyed the XOR parity.   Hopefully you put drives in the same location, and took default configuration.   If you did not do that, then you have massive data destruction, and depending on specifics, you can write it off as a near total loss.

Since the NAS appliance uses a LINUX file system, you also need to use the right software, and it will also have to a forensic recovery.   Most likely ALL file names and a good portion of the directory structure was wiped out.

You have several things going against you now, and this is something that you should not attempt yourself.  Even leaving it in the buffalo and keeping the system powered up makes things worse by the minute.  Because you were not aware of these ramifications, and the fact you have to deal with directory damage, multiple operating systems, physical connectivity, and the right software to use ... you are simply in over your head.

(Sorry, don't take that the wrong way, but you need to know this).

My advice, call in a pro.  You need somebody who is set up for this.   If your data includes large database files and that is all you care about, then just forget it and write it off.   Forensic discovery will be more successful with PDFs, spreadsheets, and word docs.   Large database files and text files require very expensive software, and in-house applications and talented human brains.    (in other words figure $5000+ to get that sort of stuff, andthey will still have some damage).
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Byas_SahaAuthor Commented:
Hello dlethe,

I am surprised, I was walked through by a Buffalo technician novel told me about that. Let me ask you this......to test the drives, I had to dismantle the HDDs from a good NAS drive....how to put those drives back without initializing? Pls advise.
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DavidPresidentCommented:
I am not familiar with what the firmware will do. Common sense would indicate that no automated actions would be made.  Since this is an embedded linux system, the default behavior would be that it would pick up the configuration from the disks, and just mount them.  But the Buffalo isn't exactly a high-end NAS.  

You're just going to have to ask the buffalo tech.  Even if I knew the answer, then my answer would be potentially dated because such behavior could change with a firmware update.   Too important to risk telling you the wrong answer, so that is why if  you are attempting recovery, then first step MUST be to make binary images of each disk, and work with the copies instead of originals.

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