ext3 Problems after vzdump

[charon]

Hi,

i have a problem with the ext3 filesystem.
First of all the backup is really slow, and the next day the proxmox VE has a huge Io wait of 30-70%
I see kjournald processes and so on.
When I reboot the machine with an fsck check, it recovers the journal and is performing quite well again.

i already changed the hdd's into another server with no better luck.
I know, i should use faster SAS hdds but they do well except after a huge load where the filesystem gets messed up somehow.

The RAID1 Controller is an: Symbios Logic SAS1068 PCI-X Fusion-MPT SAS (rev 01)

What is happening there?

 

[dietmar]

is there an active lvm snapshot somwhere from failed backup (lvs)? If so, delete it.

 

[charon]

I cannot see one:

sh-3.2# pvscan
PV /dev/sda2 VG pve lvm2 [231.39 GB / 4.00 GB free]
Total: 1 [231.39 GB] / in use: 1 [231.39 GB] / in no VG: 0 [0 ]
sh-3.2# lvscan
ACTIVE '/dev/pve/swap' [4.00 GB] inherit
ACTIVE '/dev/pve/root' [57.75 GB] inherit
ACTIVE '/dev/pve/data' [165.65 GB] inherit

 

[charon]

I had to enable write cache on the host.
If someone else has serverloft hardware read this:

http://lists.us.dell.com/pipermail/linux-precision/2007-June/001188.html

Skip the -S (save) and write it to rc.local

 

[Erwin123]

I'm having the same problem.
My backup fails and my machine is extremely slow.

I've no idea what it means but:

node5:~# pvscan
/dev/dm-3: read failed after 0 of 4096 at 193562869760: Input/output error
/dev/dm-3: read failed after 0 of 4096 at 193562927104: Input/output error
/dev/dm-3: read failed after 0 of 4096 at 0: Input/output error
/dev/dm-3: read failed after 0 of 4096 at 4096: Input/output error
/dev/dm-3: read failed after 0 of 4096 at 0: Input/output error
PV /dev/sda2 VG pve lvm2 [260.27 GB / 1020.00 MB free]
Total: 1 [260.27 GB] / in use: 1 [260.27 GB] / in no VG: 0 [0 ]

and...

node5:~# lvscan
/dev/dm-3: read failed after 0 of 4096 at 0: Input/output error
ACTIVE '/dev/pve/swap' [11.00 GB] inherit
ACTIVE '/dev/pve/root' [65.00 GB] inherit
inactive Original '/dev/pve/data' [180.27 GB] inherit
inactive Snapshot '/dev/pve/vzsnap' [3.00 GB] inherit

I guess I should change somthing here?
Umount the inactive /dev/pve parts?

Please advice

 

[Erwin123]

I found the answer elsewhere on the forum.
But:

node5:~# lvremove /dev/pve/vzsnap
/dev/dm-3: read failed after 0 of 4096 at 0: Input/output error
Do you really want to remove active logical volume "vzsnap"? [y/n]: n
Logical volume "vzsnap" not removed

ACTIVE logical volume?
it said it was inactive?
Is it save to remove?

 

[dietmar]

Is it save to remove?

Yes - it is only a snapshot.