I think he used a tool that is advocated by Buffalo, that was
referenced in a former link and solved it.
On 11/20/09, Technomage <
technomage.hawke@gmail.com> wrote:
> um. recovering data on a raid 5??
>
> is the array still intact or is it broken. if the latter, its will be
> orders of magnitude more difficult
> (but still doable).
>
> here's a clip from www.diydatarecovery.nl:
> **************************************************
> *Data recovery from a broken array*
>
> Due to the parity information a RAID 5 array can survive one single disk
> failing, RAID 5 is 'fault tolerant'. The falling disk can be replaced
> (hot swapped) and the data on the disk is rebuild using the parity
> information. However due to circumstances this may fail. It can also
> happen that the RAID adapter itself fails and very often it is not
> possible to migrate an existing array to another RAID adapter. As a
> result you have a bunch of disks, all containing bits of your data but
> you can not access that data. This is where you will need true RAID
> capable data recovery software.
>
> You will need software that can treat the separate disks as one single
> array. The software should enable the user to add disks that were part
> of the array and to configure RAID parameters such as stripe size.
> However many will not be knowledgeable enough to provide the parameter
> sets thus ideally the software should be able to detect RAID parameters
> such as stripe size and rotation (for example, in above illustration you
> see forward rotation, inverted rotation is also possible).
>
> As soon as the software has virtually recreated the array data recovery
> proceeds normally; the disk is being scanned for file system structures
> and a virtual file system is created from which data can be recovered.
> DIY DataRecovery iRecover <http://www.diydatarecovery.nl/irecover.htm>
> follows this procedure. Alternatively the reconstructed array is copied
> entirely to another disk or raw image file. The destination disk can
> then be analysed with any data recovery software, an image can be
> analyzed with any software that is capable of processing a raw image
> file. The latter is the method used by RAID Reconstructor from Runtime
> Software (www.runtime.org <http://www.runtime.org/raid.htm>)
> ***************************************************
>
> hope this helps.
>
>
> Eric Cope wrote:
>> Hello all,
>> My friend was running off of a Buffalo NAS, which died. Does anyone know
>> how
>> to recover his files from a RAID 5 configuration?
>> Thanks,
>> Eric
>>
>>
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