Controller question

[Matthias Oertli <oertlim@xxxxxxxxxxxxxxxx>]

Ok, no one answered, I recap the story:

IBM were able to recover data of some disks (which were still good)
ONLY because they were able to get the diskcontroller (which was
broken) working.

I would dearly like to know why it was not possible to just replace
the controller. What data is kept on the disk controller? Can it be
backed up? 
Any info (or pointers to some docs) would be appreciated.
Read the story, it's worth it.
Regards,
Matthias

Matthias Oertli wrote:
> 
> Supposedly a true story, check it out:
> http://www.as400.ibm.com/australia/daewoo.htm
> 
> According to this story, without getting the disk controller
> functional it would not have been possible to recover the data off the
> disks.
> I don't understand this. In case of controller failure, can't you just
> plug in another one?
> Regards,
> Matthias

---------------------------------------------------------------------
Matthias Oertli   <oertlim@s054.aone.net.au>
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