I've just implemented LVM 1.0.3 in the stock Red Hat 2.4.18-19 kernel and I believe I'm having issues with snapshots. The past two nights my backups have locked up the machine hard and I had to power it off to get it back up. This morning I forgot to remove the snapshot upon reboot and about 30 minutes after reboot the machine locked up again. The backup script creates a 90G snapshot and this morning it has used ~18GB of that space. This is the command that I use: lvcreate -L90G -c 128 -s -ncubssnap /dev/cubsvg00/cubslv00 I have since removed the snapshot and the box has been happy since then. I am moving back to my old backup mehtod of suspending my database, copying files, and then resuming DB operations, but I would like to keep using snapshots. Is there anything that I should look at to try to determine the problem? I have one VG on top of a software RAID10 array and one LV carved out of that with sufficient space left over for snapshots. Here are the details of my setup. If you need more information, please let me know. Thanks for your help, Andy. Regards, Andrew Rechenberg Infrastructure Team, Sherman Financial Group ------------------------------------------------- [root@cinshrcub01 ~]# vgdisplay /dev/cubsvg00 --- Volume group --- VG Name cubsvg00 VG Access read/write VG Status available/resizable VG # 0 MAX LV 256 Cur LV 1 Open LV 1 MAX LV Size 1023.97 GB Max PV 256 Cur PV 1 Act PV 1 VG Size 440.53 GB PE Size 16 MB Total PE 28194 Alloc PE / Size 22400 / 350 GB Free PE / Size 5794 / 90.53 GB VG UUID bOuvON-9uze-9Zz8-LW0b-xkWK-z87E-L7r0V1 [root@cinshrcub01 ~]# lvdisplay /dev/cubsvg00/cubslv00 --- Logical volume --- LV Name /dev/cubsvg00/cubslv00 VG Name cubsvg00 LV Write Access read/write LV Status available LV # 1 # open 1 LV Size 350 GB Current LE 22400 Allocated LE 22400 Allocation next free Read ahead sectors 1024 Block device 58:0 _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/