Hello, I'm trying to use the snapshot feature, but i have trouble. I don't have error message (kernel or others), i don't know how to check if lvcreate still running.. My first try was with a volume group of ~ 580 GB (hardware raid 5) I created a logical volume 50GB, create a XFS Filesystem, put some data (~1GB) and run the following commands : $ xfs_freeze -f <mount point> $ lvcreate -v -s -L 2GB -n snapshot <device> I have high load average, small io (~ 170 blk_wrtn/s), but nothings happens after more than hour, lvcreate is still running, i can't kill him, i can't do a software reboot, etc.. My second try has the same config, except i tried to set the -c argument to 6 (which correspond to the chunk_size of the raid 5, 64K) if i understand correctly how to use this options, same result than the first. My third and last try was with a simple volume of 60 GB, a logicial volume of 1G, !50M of data put in the fs, and the command : $ xfs_freeze -f <mount point> $ lvcreate -v -s -L 500M -n <name> <device> And still the same problem. I hard reboot the computer after one hour lvcreate running.. I don't think the system need more 1h to copy 500M So my question, are there some know wells trouble about the snapshot features ? Do you think that work better with LVM 1 ? How can i check the state/progress of lvcreate ? Thanks for your help. -- here my hard/software configuration -- SCSI AACRAID Controler with a lot of disk (11 x 68GB) Linux Kernel 2.6.10 with dm-snapshot, dm-mirror, etc.. (running debian sarge) XFS (xfsprogs version 2.6.20) LVM 2.00.24-1 (Debian Sarge Version) -- Bruno Bonfils Fimasys _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
