All, I think dtrace could be a viable option here. crond to run a dtrace script on a regular basis that times a series of reads and then provides that info to Cacti or rrdtool. It's not quite the one-size-fits-all that the OP was looking for, but if you want trends, this should get 'em.
$0.02 Regards, TJ Easter On 2/21/07, Nicholas Lee <[EMAIL PROTECTED]> wrote:
On 2/22/07, Gregory Shaw <[EMAIL PROTECTED]> wrote: > > > > I was thinking of something similar to a scrub. An ongoing process seemed too intrusive. I'd envisioned a cron job similar to a scrub (or defrag) that could be run periodically to show any differences between disk performance over time. ... > > > I thought this would be very difficult to determine, as a slow disk could be a transient problem. > > > Me, I like tools that give me information I can work with. Fully automated systems always seem to cause more problems than they solve. If the stats are publishable, then something like cacti or any monitoring tool should provide most admins with enough tools to spot potential issues. Nicholas _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
-- "Being a humanist means trying to behave decently without expectation of rewards or punishment after you are dead." -- Kurt Vonnegut http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x31185D8E _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
