[linux-lvm] Reiserfs, 2.4.7, snapshots w/ 0.9
Mark Bainter
mark at unirez.com
Wed Jul 25 15:36:40 UTC 2001
I'm using LVM on a couple of our production systems, and I'm very
happy with it. It's been working very well for us. However, we
have a very large database and backing it up has become problematic.
So, naturally, I began looking into using LVM's snapshot feature.
The filesystem the database rests on is a reiserfs partition.
Creating the snapshot volume (acc to the directions in the howto)
works fine, but when I try to actually mount it I get:
$ sudo mount -t reiserfs -oro /dev/main/db_backup /mnt/dbbackup
mount: wrong fs type, bad option, bad superblock on /dev/main/db_backup,
or too many mounted file systems
checking dmesg reveals:
reiserfs: checking transaction log (device 3a:04) ...
clm-2076: device is readonly, unable to replay log
Replay Failure, unable to mount
reiserfs_read_super: unable to initialize journal space
Ok, so I did some searching and found some people back in the first
part of this year had a similar problems but none of the solutions
really applied to me fwict. They all appeared to be using a
previous version of the kernel, or of the lvm code. I looked through
the changelog and did see a few notations of fixes since 0.9 related
to the snapshot code. But, I'm kind of wary about putting a beta
on my production systems with something this critical, w/out knowing
for sure that it will fix the problem.
So, is the problem in lvm? reiserfs? Or is it just me? Is there
any other information I can give that might be helpfull in figuring
out the problem? Just let me know.
TIA
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