Well, we had some issues with XenServers “automated” metadata backup, so I decided – with the help of one of our consultants – to automate it on our own to an external target.
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; html-script: false crayon-selected ]#!/bin/bash # Crontab entry for each server: # 02 5 * * * root /usr/local/sbin/xen-pool-backup.sh # Get the pool name POOL_NAME="$( xe pool-list | grep name-label | awk '{ print $4 }' )" HOST_UUID="$( xe host-list hostname=`hostname` | grep "uuid ( RO)" | awk '{ print $5 }' )" DAILY_GENERATIONS=7 WEEKLY_GENERATIONS=4 NFS_MOUNT="nfs.home.barfoo.org:/srv/xenbackup" NFS_LOCAL="/tmp/backup-mount/$POOL_NAME" # Figure out if we're the pool master POOL_MASTER="$( xe pool-list | grep master | awk '{ print $4 }' )" if [ "$POOL_MASTER" == "$HOST_UUID" ] ; then # Only the pool master should backup the pool database, as this is the only # one who has a authoritive pool database # Create the necessary directory and mount the NFS volume mkdir -p ${NFS_LOCAL%/*} mount -t nfs $NFS_MOUNT ${NFS_LOCAL%/*} mkdir -p $NFS_LOCAL if [ -f $NFS_LOCAL/daily.$DAILY_GENERATIONS.gz ]; then rm -f $NFS_LOCAL/daily.$DAILY_GENERATIONS.gz fi OLD_DAILY="$( echo "scale=0; $DAILY_GENERATIONS - 1" | bc )" for OLD in $( seq $OLD_DAILY -1 1 ); do if [ -f $NFS_LOCAL/daily.$OLD.gz ] ; then NEW="$( echo "scale=0; $OLD+1" | bc )" # Save the time stamp somewhere touch $NFS_LOCAL/.timestamp -r $NFS_LOCAL/daily.$OLD.gz mv $NFS_LOCAL/daily.$OLD.gz $NFS_LOCAL/daily.$NEW.gz # Restore the date touch $NFS_LOCAL/daily.$NEW.gz -r $NFS_LOCAL/.timestamp fi done [ -f $NFS_LOCAL/daily.0.gz ] && mv $NFS_LOCAL/daily.0.gz $NFS_LOCAL/daily.1.gz xe pool-dump-database file-name=$NFS_LOCAL/daily.0 gzip -9 $NFS_LOCAL/daily.0 [ -f $NFS_LOCAL/.timestamp ] && rm $NFS_LOCAL/.timestamp umount ${NFS_LOCAL%/*} rm -rf ${NFS_LOCAL%/*} fi |
With that, I have at least a daily backup – and in combination with our daily TSM backup, I have at least month long history of metadata backups.