Veritas Defragmentation best practices

From: Filipe Litaiff (filipe_litaiff@optiglobe.com.br)
Date: Wed Mar 24 2004 - 09:26:58 EST


Greetings fellow forumers,

We are studyng best yays to implement veritas defragmentation.

The Veritas documentation offered great ammount of details about what it does,
but we are wondering here how it works on real life.

Of course it works OK, but we had some questions raised:

- What happens if it competes with an incremental/full filesystems?

- Is it really secure? Anyone had any bad experiences regarding data being
corrupted?

- And if in the middle of the process {someone kills fsadm | the fs gets
unmounted | the disk or the FC gets temporary unavailable | etc} ?

- What could be called something close to a best practice on this issue?

Thanks in advance,

Filipe Litaiff

====
# yadda yadda

outfile=/root/defrag_$(date +'%m%d').log

dirs="/mountpoint1 /mountpoint2"

FSADM=/usr/lib/fs/vxfs/fsadm

for dir in $dirs; do

        /bin/timex $FSADM -e -E -v $dir
        /bin/timex $FSADM -d -E -v $dir

done > $outfile 2>&1

===
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