Do you get messages like the ones below in /var/log/messages?
sym53c875-0-<0,0>: QUEUE FULL! 8 busy, 7 disconnected CCBs
sym53c875-0-<0,0>: tagged command queue depth set to 7
In fact, do you get any messages in your log files that look like they
might be related?
-- Bruce Harada bruce@ask.ne.jp
On Sun, 28 Jan 2001 02:26:32 -0500 "paradox3" <paradox3@maine.rr.com> wrote:
> I have an SMP machine (dual PII 400s) running 2.2.16 with one 10,000 RPM > IBM > 10 GB SCSI drive > (AIC 7890 on motherboard, using aic7xxx.o), and four various IDE drives. > The > SCSI drive > performs the worst. In tests of writing 100 MB and sync'ing, one of my > IDE > drives takes 31 seconds. The SCSI drive (while doing nothing else) took > 2 minutes, 10 seconds. This is extremely noticable in file transfers > that > completely > monopolize the SCSI drive, and are much slower than when involving the > IDE > drives. > After a large data operation on the SCSI drive, the system will hang for > several minutes. > Anyone know what could be causing this? Thanks. > > Attached are some data to help. > > > Thanks, > Para-dox (paradox3@maine.rr.com) > > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/