Re: [WBEL-users] steps to help recover data from a crashed system? (boot drive crashed, need to get data from data drive)

On Mon, 13 Feb 2006 16:25:46 -0600
Dale Lists <[email protected]> wrote:

> Hello Scott,
> 
> Scott Silva wrote:
> 
> [snip]
> 
> >>>Is this a raid array? Or just 2 drives?
> >>>It makes a difference on what you might recover, and how
> >>>easy it will be (or difficult).
> >>>      
> >>>
> >>Currently the setup is just 2 drives. The drive I believe
> >>that is hosed is the boot drive, the second drive is the
> >>/var volume which contains my websites and mail spools.
> >>
> >>So I am hoping I will be able to get the data from the /var
> >>volume.
> >>
> >>Dale
> >>    
> >>
> >You should be able to get to that data with the Knoppix disk. But you will
> >need somewhere to put it if you are going to format the remaining drive.
> >I wouldn't recommend raid 0 for your new install if you want any hope of
> >recovery should one of the drives fail.
> >  
> >
> 
> I thought RAID 0 is simply mirroring - Raid  1 is striping - right? Why 
> would mirroring be more difficult to recover data from?

That's the other way around. RAID0 divides data in small sets written half
on one disk, half on the other, making a single drive failure a disaster.
That's striping.
RAID1 mirrors data on two drives.
http://en.wikipedia.org/wiki/RAID

khaqq