roland wrote:
is there a reliable method of re-compressing a whole zfs volume after turning
on compression or changing compression scheme ?
It would be slow, and the file system would need to be idle to avoid
race conditions, and it wouldn't be very fast, but you _could_ do the
following (POSIX shell syntax). I haven't tested this, so it could have
typos or other problems:
find . -type f -print | while read n; do
TF="$(mktemp ${n%/*}/.tmpXXXXXX)"
if cp -p "$n" "$TF"; then
if ! mv "$TF" "$n"; then
echo "failed to re-write $n in mv"
rm "$TF"
fi
else
echo "failed to re-write $n in cp"
rm "$TF"
fi
done
--
Carson
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
