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View Full Version : Low array speed miles 2uw and cheetah array



davidbrown
07-03-2001, 08:33 AM
Using Quickbench 1.5, I tested my miles u2w and two cheetah 10krpm 18.2gb at a stripe 0 array and it only helds 40mb/s. I have Umax s900 with the miles 2uw in slot one. Is there a better freeware bench tester? How can I increase this speed?
Thanks,
David

dragon_x
07-03-2001, 09:43 AM
Is that read speed or write speed?

I think 40MB/s is max for writes on that card. It should be in slot 1 or 2 to get the best performance.

Does SoftRAID make a HD bench?

------------------
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davidbrown
07-03-2001, 10:53 AM
Sequential read about 56mb/s
sequnetial write about 33mb/s
random read about 33mb/s
random write about 27mb/s
all of these readings are with 1mb file size
there are other files sizes and speeds but under 1mb file size
I don't see hd bench on my hdd when install all the software for scsi card and softraid.
David
p.s. I have copy of macbench 5 too but it's not installed

dragon_x
07-03-2001, 01:49 PM
I think Kay has some benchmarks of his S900 with a RAID setup. It also has a fast G3 on it... so that can make a diff, I think. I think the scores are a bit low but not out of the ordinary, esp on an old mac like that.

dragon_x
07-03-2001, 01:50 PM
You can get the scores from the Gurus FTP site. There is a link to the instruction from the main gurus sales page.

GL

MacMikester
07-03-2001, 11:28 PM
David,

Those numbers are fine. For general purpose use, you need no tweaking.

Regards

magician
07-08-2001, 01:57 AM
those numbers are right in the ball-park. Remember: Miles2 maxes out a 40MB/sec sustained writes regardless of machine or how many drives. Getting 33MB/sec off a pair of drives puts you in the window, and it's not really feasible to get much faster write performance from a vintage machine like the S900 anyway.

MacMikester
07-08-2001, 02:52 PM
Hey David,

You will not be able to max out the Miles2 card with two 10K Cheetahs (three or four would come pretty close). You could also come pretty close with two X15 Cheetahs but these are currently available only in 18 G sizes. For the size drives that you apparently need, you have the absolute best hardware that is currently available. Seagate does have some exciting things in the pipeline, including larger Ultra160 drives.

Regards