On Mon, 30 Oct 2006, Juha Jäykkä wrote:
Hi!
Does anyone have any experience using legato networker to back up afs
volumes? We would like to switch from "vos dump all volumes to an extra
raid array" -backups to using legato (since that's the de facto backup
solution around here). What's the best way to do it?
I found this
http://68.100.67.187:3000/openafs/afs-backup-to-legato.tar.gz, but I'm
unsure as to how reliable/useful it is. Certainly it seems like less work
than what would be required to build a backup-to-legato -system from
scratch. Anyone using this?
Originally, I was thinking of just using our current dumps as sources for
legato, but that make incremental backups quite painful since our current
scheme just dumps whole volumes, no incrementals.
We have built a solution around Legato Networker that is using both full
and incremental dumps using 'vos dump'. The resulting files are put in a
disk pool, from there the files are backed up just as any other files.
The script that does the backup calculates what kind of backup (full,
level1, incremental) should be done based on the volume name and date of
the last backup operation.
The recovery script looks first in the same disk pool whether the required
files to restore a volume are still there. If not, the missing files are
retrieved from tape. We implemented also to recover individual files in a
volume (current restriction: one file only, no dirs).
As the recovery does require root privileges and oth the other hand a user
should be able to retrieve "his" volumes or files the recovery works in a
client server environment.
The software is mostly written in perl. A talk (in german) can be found at
http://www.rz.uni-hohenheim.de/afsws06/vortraege/tagung/Friebel_AFSbackup.pdf
I have just uploaded the cleaned up backup script to
ftp://ftp.ifh.de/pub/unix/sysadmin/afsbackup/afs_voldump
The recover script is still missing, I have to do cleanups there as well
before I will put it in the same directory
--
Wolfgang Friebel Deutsches Elektronen-Synchrotron DESY
