With regards to your message at 12:08 AM 8/27/02, Danilo Godec. Where you
stated:
>I'm not going to spend a ton of money for large SCSI drives. If I can't
>get ServerWorks to work well (and fast), I'll just get an add-on IDE
>controller.
So, buy a 3Ware. Works, fast, well supported.
Here is what one of my customers said yesterday.
He's running a Serverworks GC based dual XEON P4DL6 Supermicro board:
2 x P4 XEON 2GHz
2 - 3Ware 7500-8 boards
12 - WD 1200JB 120GB disks with 8MB cache
26" IDE TPE cables
2GB DDR
Here are the results I'm getting for software raid 0, 64-kByte chunks, all
for using an ext2 file system (since my system will be the receiver I want
to write as fast as possible, I've found that updating the journal file
takes a fair bit of cpu).
12 disks (sda1 through sdl1):
dd: writing = 163.5 MBytes/sec
reading = 240.9 MBytes/sec
Bonnie++: writing = 173.6 MBytes/sec
reading = 217.7 MBytes/sec
8 disks (sda1,sdb1,sdc1,sdd1,sde1,sdf1,sdg1,sdh1):
dd: writing = 210.9 MBytes/sec
reading = 192.8 MBytes/sec
Bonnie++: writing = 215.3 MBytes/sec
reading = 198.1 MBytes/sec
Here is the disk layout per controller:
3ware Controller #1: sda,sdb,sdc,sdd
3ware Controller #2: sde,sdf,sdg,sdh,sdi,sdj,sdk,sdl
Therefore the result for the 8-drive benchmark has 4 drives on each
controller.
FYI the sytax I used for Bonnie++ was:
bonnie++ -d /raid -s 8000 -r 1024 -u root
With our best regards,
Maurice W. Hilarius Telephone: 01-780-456-9771
Hard Data Ltd. FAX: 01-780-456-9772
11060 - 166 Avenue mailto:maurice@harddata.com
Edmonton, AB, Canada http://www.harddata.com/
T5X 1Y3
2.3TB RAID5 NAS server - dual AthlonMP CPU, Linux, $10,995 CAD / $6850 USD
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