From: przemolicc@poczta.fm
Date: Mon Dec 30 2002 - 09:03:49 EST
We have Solaris 2/02. I use fssnap to make backups. But we have problems
with performance while doing the backup.
Backup script looks like this:
...
/etc/init.d/oracle stop
...
for i in ${FILESYSTEMS}
/usr/sbin/fssnap -F ufs -o raw,unlink,backing-store=/backup ${i}
done
...
/etc/init.d/oracle start
...
for i in ${FILESYSTEMS} [1]
RAW=`/usr/sbin/fssnap -i -o rawdevname ${i}`
/usr/sbin/ufsdump 0uf /dev/rmt/0cn ${RAW}
/usr/sbin/fssnap -i ${i}
/usr/sbin/fssnap -d ${i}
done
where /backup is
# mount|grep backup
/backup on /dev/dsk/c1t11d0s0 read/write/setuid/intr/largefiles/dfratime/onerror=panic/dev=1d800b0 on Mon Dec 30 14:34:38 2002
During [1] I (and mostly - oracle users) can notice that oracle works slower and
slower. So that we have to often break backup to let users work in
oracle.
Can you give me some hints regarding parameters of ufsdump/fssnap/filesystem
to speed up the backup ?
So far there is no way to add additional disks (hardware) to the server.
przemol
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