On Aug 15, 2009, at 9:29 PM, en...@businessgrade.com wrote:
Quoting Ross Walker <rswwal...@gmail.com>:
Thanks for the input everyone. I understand that I should be
testing with a benchmark program. But I'm confused a wee bit I
guess because I would imagine my asynchronous read performance
to be much better than 48MB per second. Right/Wrong? Even if the
read performance is not accurate, it should still be ball park
or greater than synchronous io.
Yes, it should be.
Maybe the controller is in IDE compatibility mode?
-Ross
Well it's a LSI 1068e based SAS HBA. The controller is in IT mode.
Ap_Id Type Receptacle
Occupant Condition
c0 scsi-bus connected
configured unknown
c0::dsk/c0t8d0 disk connected
configured unknown
c0::dsk/c0t9d0 disk connected
configured unknown
c0::dsk/c0t10d0 disk connected
configured unknown
c0::dsk/c0t11d0 disk connected
configured unknown
c0::dsk/c0t12d0 disk connected
configured unknown
c0::dsk/c0t13d0 disk connected
configured unknown
c0::dsk/c0t14d0 disk connected
configured unknown
c0::dsk/c0t15d0 disk connected
configured unknown
c0::dsk/c0t16d0 disk connected
configured unknown
c0::dsk/c0t17d0 disk connected
configured unknown
c0::dsk/c0t18d0 disk connected
configured unknown
c0::dsk/c0t19d0 disk connected
configured unknown
c0::es/ses0 ESI connected
configured unknown
c0::smp/expd0 smp connected
configured unknown
sata0/0::dsk/c2t0d0 disk connected
configured ok
sata0/1::dsk/c2t1d0 disk connected
configured ok
The SATA disks are the boot and the Intel X25-E which is being used
for ZIL. Everything else is on the HBA.
Well then, take a look at the interrupts and make sure the HBA isn't
sharing an interrupt with a slow device like USB.
# echo ::interrupts | mdb -k
Should show the current interrupt assignments.
-Ross
_______________________________________________
storage-discuss mailing list
storage-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/storage-discuss
