zfs discuss - Jan 2007 - Lots of snapshots make scrubbing extremely slow

There are two things that could be coming into play here:

1) if you have snapshots then you have more live data to scrub so it could just
take longer.

2) When you take snapshots the scrub starts again from scratch. This has been
discussed before:
http://www.opensolaris.org/jive/thread.jspa?messageID=44294&#44294 and there
is a bug open.

--chris


This message posted from opensolaris.org
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Hello!

I''m generating two snapshots per day on my zfs pool.  I''ve
noticed that
after a while, scrubbing gets very slow, e.g. taking 12 hours and more
on system with cca. 400 snapshots.  I think the slowdown is progressive.
When I delete most of the snapshots, things get back to normal, i.e.
scrubbing takes an hour or so.

_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss