[CentOS] Re: Trying to recover data off SATA-to-SCSI external 2TBARRAY

[Scott Silva]

on 10/15/2007 1:18 PM Dan Carl spake the following:
> On Monday 15 October 2007, Dan Carl wrote:
> ...
>>> The SmartArray doesn't recognize the external array.
>>> So thats why I connected it to a SCSI non-raid controller which does.
>>> lvndiskscan on my Centos server even can tell the size of it.
>>> /dev/sda                 [        2.00 TB]
>>> The external array has it's own built in raid controller.
>>> The Bios the SmartArray said it was a raid 0 2048GB failed.
>>> I not sure why the SmartArray sees it as that because the external array
> is
>>> configured as a raid 5 with spares.
>>> Im not familar with the SmartArray and don't have another to try.
>>>
>>> Is there no way to access the data other than via the SmartArray?
> 
>> so give "tune2fs -l /dev/sda" a try. Maybe you'll find a nice ext3 fs,
> maybe
>> no. It's a non-destructive operation so go ahead.
> 
> That yielded :'(
> tune2fs 1.39 (29-May-2006)
> tune2fs: Bad magic number in super-block while trying to open /dev/sda
> Couldn't find valid filesystem superblock.
> 
> And know they didn't backup their data, under the advice of their developer.
> Advice to everyone if you care about your data BACK IT UP!!! even a raid 5
> with hot spares can fail.
> I feel bad for them. Thier developer screwed them and then left them.
> 
> If any has any other advice please share.
> 
Any decent rescue disk should have testdisk 
(http://www.cgsecurity.org/wiki/TestDisk)
Run it against the array and see what it can find.

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