Hello, we are using hardware array and its vendor recommends the following setting in /etc/system: set (s)sd:(s)sd_max_throttle = <value> I am looking for a way to monitor how it influences the whole IO traffic. The same way as when using ufs_LW/ufs_HW (when number of writes exceed value of ufs_HW, the writes are deffered until only ufs_LW bytes are outstanding _and_ - what is even more important ! - the kernel variable ufs_throttles is increased) In general I would like to monitor (s)sd queue: - number of waiting requests in (s)sd queue - how IO requests are getting into (s)sd queue for specyfic LUN - how long is queue at the moment - when IO is removed from (s)sd queue
Is it possible to monitor it using DTrace ? Regards przemol -- http://przemol.blogspot.com/ ---------------------------------------------------------------------- Diverse Extreme Team Goes Dakar >> http://link.interia.pl/f1ca9 _______________________________________________ storage-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/storage-discuss
