[linux-lvm] badblocks handling with LVM
Russell Coker
russell at coker.com.au
Wed Apr 25 17:59:48 UTC 2001
On Monday 23 April 2001 12:08, Andreas Dilger wrote:
> Laurent writes:
> > I have blocks marked bad on a ext2 filesystem. The device has bad
> > blocks. I'm wondering how bad blocks are handled with lvm. I would like
> > to create a phycal volume on this device and use reiserfs on it.
> > Could you give me some informations ?
>
> As long as the bad blocks are not in the first ~250kB of the partition/disk
> then LVM doesn't care about it. However, reiserfs doesn't yet support bad
> blocks in the filesystem (this is currently under development AFAIK), so
> this will not help you.
The problem is that when you move LV's around and make snapshots the bad
blocks on the underlieing media will move. Therefore I think that management
of bad blocks possibly should be done in the LVM.
Or should we just assume that LVM runs over RAID arrays of ATA/SCSI disks
that have sector-sparing so that bad blocks are not an issue?
--
http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark
http://www.coker.com.au/postal/ Postal SMTP/POP benchmark
http://www.coker.com.au/projects.html Projects I am working on
http://www.coker.com.au/~russell/ My home page
More information about the linux-lvm
mailing list