> I noticed recently that write rate has dropped off and through testing now I > am getting 35MB/sec writes. The pool is around 50-60% full.
> I am getting a CONSTANT 30-35% kernel cpu utilisation, even if the machine is > idle. I do not know if this was the case when the write performance was > better. I have tried reading from the server to a HDD on a windows client and > I get 50+MB/sec which is probably the max that that HDD can sustain on a > write. Hi, do you have your zfs prefetch turned on or off? Turning prefetch off makes comstar iscsi shares unusable in Solaris 11 Express while it might work fine in osol. Yours Markus Kovero _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
