Thank you all for the replies regarding ReiserFS....... I will have to do more research into this matter because originally I did not consider reiser for the server. It is always good to get other peoples opinions on topics like this. I have one small request if you don't mind. The mail server will run cyrus imapd and while reading the documentation I saw the following note which is attached below after my email. The author of this document also notes that XFS includes a program called xfs_freeze which will freeze a filesystem from new changes so a more reliable snapshot can be created. Again people here with more experience with LVM and reiserfs might know of a better way to do the snapshot for backups. Any opinions? Thank you all for your insight. Please keep posting if you have different opinionss. Please scroll all the way to the bottom: http://acs-wiki.andrew.cmu.edu/twiki/bin/view/Cyrus/Backup One issue you may run into: if you're using ReiserFS, at least on Linux 2.4 with LVM1, then snapshots may occasionally fail. The snapshot will be created fine, but the ReiserFS fileystem on it will not be mountable if it has incomplete transactions. The ReiserFS code tries to replay the transactions, fails because the snapshot is read-only, and fails to mount the FS. I've found that syncing the disks before taking the snapshot reduces the chances of this happening dramatically: sync && sleep 1 && sync && sleep 1 && sync # try to make sure FS will be clean nice -n -19 lvcreate -s -L 1G -n var_s /dev/OS/var >&/dev/null || \ ( echo "Error creating snapshot of /var: $?" && exit 1 ) ______________________________________________________________________ Post your free ad now! http://personals.yahoo.ca _______________________________________________ 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/
