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Old 06-29-2003, 11:22 PM   #4
vicbyrd
Registered User
 
Join Date: Jun 2003
Location: Florida
Posts: 65
P4C800 Dlx - Intricacies of the Promise SATA Raid:

The more complicated the board the better it is when you get it screamin'. After 3 days of building and testing I've gotten two striped arrays set up on the Promise controller. The first with 2 WD Raptor Serial ATA drives, each on their own channel. They're only 36 Gb each so striped I've got a 70 Gb primary array. Latest benchmarks from Sandra:

SiSoftware Sandra 2003 Pro

After update to new Promise driver - v 1.0.1450.25
C: Drive (Raid 0 Array 1)

Test Status
SMP Test : No
Total Test Threads : 1
SMT Test : No
Dynamic MP/MT Load Balance : No
Processor Affinity : No
Windows Disk Cache Used : No
Use Overlapped I/O : Yes
Command Queue Depth : 4 command(s)
Test File Size : 1023MB
File Server Optimised : No

Benchmark Breakdown
Buffered Read : 1022 MB/s
Sequential Read : 100 MB/s
Random Read : 10 MB/s
Buffered Write : 936 MB/s
Sequential Write : 81 MB/s
Random Write : 18 MB/s
Average Access Time : 5 ms (estimated)

The second array consists of 2 Deskstar 180 GXP 80 Gb drives. They're configured as master and slave on channel 3 (P ATA). This array will be used mainly for video work. Was having serious problems with write speed on this second array until I looked at the Promise manual for the FastTrak S150 TX2 (its the same chipset thats on our Mobo's). Turns out that you have to use the Promise Array Management (PAM) to turn up the PCI bus slider. Now instead of Sequential Writes = < 8 MB/s they're over 60. Buffered writes are also WAY up. Current specs look like:

SiSoftware Sandra 2003 Pro

J: Drive (Raid 0 - Array 2)

Test Status
SMP Test : No
Total Test Threads : 1
SMT Test : No
Dynamic MP/MT Load Balance : No
Processor Affinity : No
Windows Disk Cache Used : No
Use Overlapped I/O : Yes
Command Queue Depth : 4 command(s)
Test File Size : 1023MB
File Server Optimised : No

Benchmark Breakdown
Buffered Read : 1111 MB/s
Sequential Read : 77 MB/s
Random Read : 5 MB/s
Buffered Write : 1219 MB/s
Sequential Write : 61 MB/s
Random Write : 15 MB/s
Average Access Time : 13 ms (estimated)

I haven't even started really tuning up and OC'ing the system. I have been running fine with a 10% "AI" overclock. Still need to play with memory timings! But sure is nice to have the disk systems running well.

How 'bout some comparative benchmarks. . .

I'll post cpu & mem benchmarks soon.
__________________
Asus P4C800-E Deluxe
Intel Pentium 4 Processor (Northwood) 2.8GHz 800MHz FSB Retail
(2) Corsair CMX512-3500C2 512MB DDR433 PC3500 Memory 2-3-3-6-8
Promise - Raid 0 - (2) IBM (Hitachi) Deskstar 180GXP 80GB ATA100 7200RPM HD (w/ SATA -> PATA adaptor)
ICH5R - Raid 0 - (2) Western Digital Raptor WD360GD 36.7GB Serial ATA 10,000RPM
nvidia GeForce4 Ti 4200
Santa Cruz Turtle Beach Audio
Asus CRW-5224A 52x24x52 E-IDE CD-RW Drive w/Flextralink Retail
HP dvd200i DVD+RW
Lian-Li case
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