Re: [Nfsen-discuss] Linux filesystem type choice?

[Ivan A. B. <iv...@li...>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi Peter,

On 18/07/2006 14:29, Peter Haag wrote:

>>> Well - that was until last night, when a kernel upgrade appeared to wipe
>>> away the filesystem. I recovered the LVM (PV/VG/LV) but xfs refused to
>>> see anything (even booting back to the old kernel).

>>> This has seriously dented my trust in xfs, however a few of the nice
>>> things about xfs were speed of file-delete/mount/unmount/create. Trying
>>> to mount a newly-formatted 1.2TB filesystem under xfs takes 4s, whereas
>>> it takes 45s under reiserfs (and longer under ext3 from what I remember).

ext3 actually mounts in around 5s ... but it takes about 10+ mins to
create the filesystem!

>>> What do other people with large filesystems use? If xfs (especially if
>>> using LVM) have you seen anything like this?
>>>
> 
> I don't know if this is really a XFS issue - maybe LVM causes some problems, so XFS can handle no longer the partition. I'm using XFS for years now - since we started collecting netflow, without a
> single issue with XFS. However, we don't use XFS in combination with LVM.

I was wondering that. I knew you used xfs (and hence expected a post by
you ;) and so wonder if it's an interaction with LVM. I know LVM
"screwed up" here, but I have _always_ been able to get access to the
data by recreating the LVM using the backups in /etc/lvm/ (because that
restores the LVM config, and there is no reason why the on-disk data has
changed). It is this point that concerned me ... xfs_restore found
primary and secondary superblocks but was unable to verify them.

Hopefully others will respond aswell .. I'm curious :)

Cheers

Ivan
- --
Ivan Beveridge
<iv...@li...>		http://www.linx.net/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFEvfiXQQZN5jq7vncRAjnqAJ9drp/HpP4Ihm6blI3YbSorwH01KQCfQpvv
KFROtQwwM6VQCc99qNskFco=
=ig8F
-----END PGP SIGNATURE-----