[ILUG] RAID 0 disk failure

[John Madden]

On (29/10/02 04:26), Paul Jakma didst pronounce:
> > Ok, I know we're probably screwed on this one, but I said I'd ask
> > anyway.
> 
> you're probably screwed, sorry. :(
> 
Figured as much -- poo :(

> (NB: take a backup of your good disks before doing this)
> 
Is there a way that I can do this? I can't access any of the disks
individually from the machine they're in at the moment -- the whole 5 or
whatever number it is of disks are there as one device and I don't think
I can access them individually. Would it work if I did one disk at a
time on another machine? Or, can I actually access each disk separately
on this machine via different devices?

> let the disk cool for a night, boot up and (imho) /dd/ the raw disk
> to a file, ie dd if=/dev/rd/c0d0 ... - should read it in one 
> sequential go (rather than seeking back and forth through an fs of 
> indeterminate state of fragmentation), hopefully increasing chance 
> of getting data off it.
> 
If the /home/ device is /dev/rd/c0d1p1, then the raw disk (which would
be the full RAID) would be /dev/rd/c0d1 -- am I correct here? Do you
mean to freeze the disk, slot it back into the array and try and dd the
whole lot to a file? I've googled (briefly) to see if I can access the
disks individually, but I can't find anything on the topic.

-- 
Chat ya later,

John.
--
BOFH excuse #1: clock speed