[3219] in linux-scsi channel archive
Re: Mylex 960?
daemon@ATHENA.MIT.EDU (Leonard N. Zubkoff)
Thu Feb 5 19:41:10 1998
Date: Thu, 5 Feb 1998 11:44:56 -0800
From: "Leonard N. Zubkoff" <lnz@dandelion.com>
To: redhat@davelee.student.Princeton.EDU
CC: linux-scsi@vger.rutgers.edu
In-reply-to: <Pine.LNX.3.96.980203155953.478B-100000@ranma.princeton.edu>
(redhat@davelee.student.Princeton.EDU)
Date: Tue, 3 Feb 1998 16:01:34 -0500 (EST)
From: <redhat@davelee.student.Princeton.EDU>
Hi leonard,
I've been using your Buslogic driver with great success and would just
like to say thanks for a great piece of software.
Glad to hear it's worked well for you.
Regarding the Mylex 960 however, what do you think about the product,
both performance wise and reliability wise? As for driver support,
do you have an estimate of approximately how long it will be until
the driver will be usable?
It's really a bit too soon to make any pronouncements about performance or
reliability. I've not seen anything to indicate anything but reliable
operation, but I've only been working with the boards for a short while.
In terms of performance, I do know that their latest model, the DAC960PJ, was
just used in a world class TPC-C benchmark (see http://www.mylex.com for their
announcement) and RAID controllers don't get used for TPC-C benchmarks unless
their performance is outstanding. I expect to be do some Linux benchmarking
eventually and will report on the results.
There's definitely a bunch more work to do before the driver will be ready for
beta testing (mostly related to error recovery and monitoring), but I'm feeling
optimistic. I beat on three system drives (RAID 0, 5, 0+1) simultaneously for
a few hours yesterday and have yet to see any sign of instability.
Leonard
aurora:~# df
Filesystem 1024-blocks Used Available Capacity Mounted on
/dev/sda1 63440 21464 38700 36% /
/dev/sda2 507840 456092 25536 95% /usr
/dev/sda3 367976 43008 305976 12% /u
/dev/rd/c0d0p1 2180104 341668 1725900 17% /x
/dev/rd/c0d1p1 1454032 177996 1200980 13% /y
/dev/rd/c0d2p1 1047380 379052 614264 38% /z
aurora:~# cat /proc/interrupts
0: 7306264 timer
1: 4 keyboard
2: 0 cascade
8: 1 + rtc
9: 2011 DS21140 Tulip
10: 3631150 + Mylex DAC960
11: 33889 + BusLogic BT-950
13: 1 math error
