[CentOS] A questiong about replacing my failing drive

Rodrigo Barbosa rodrigob at suespammers.org
Sun Jun 12 19:53:55 UTC 2005


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On Sun, Jun 12, 2005 at 03:45:19AM +0200, Dag Wieers wrote:
> > Check my other post regarding this. Dump won't clone wholedisks. It
> > will clone filesystems (with all metadata intact).
> 
> The problem with a broken disk is that your filesystem may not be correct. 
> And you can't do a fsck to correct the inconsistencies because the disk is 
> not reliable.
> 
> That's why you require something like ddrescue, so you can copy everything 
> that is still accessible and fill the blank spaces in with zero-blocks. 
> So it doesn't abort or truncate the output like dd, maybe dd conv=noerror 
> is similar but ddrescue has other features like proper status info during 
> copying and decreasing blocksize when blocks fail to be read.

I never tried ddrescue, so I can't comment.

But, as far as I remember, dump will only abort if you get an error
on the writing side. Memory can be at fault here, tho.

- -- 
Rodrigo Barbosa <rodrigob at suespammers.org>
"Quid quid Latine dictum sit, altum viditur"
"Be excellent to each other ..." - Bill & Ted (Wyld Stallyns)

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