RAID 5 SATA Benchmark posted - Possible issues - Need opinions

I just built a new server with a HighPoint RocketRaid 1640 SATA Raid Controller.

I setup (4) Seagates 200GB SATA drives, in a RAID 5 array, with one drive for parity = 600GB.

I had to update the bios for the card before it would detect them properly.

Now it finally works, however, this is the first SATA RAID-5 setup I've done and I'm curious as to if my results were normal, below average or above average. I'm very dissapointed with the sequential and random write performance.

Any opinions are appreciated. I tried two block sizes so far, 64K and 1024K, both shared similar results.

SiSoftware Sandra

Benchmark Results
Drive Index : 69 MB/s

Performance Test Status
Run ID : XEON on Wednesday, 22 December 2004 at 12:30:57 PM
SMP Test : No
Total Test Threads : 1
SMT Test : No
Dynamic MP/MT Load Balance : No
Processor Affinity : No
Operating System Disk Cache Used : No
Use Overlapped I/O : Yes
IO Queue Depth : 4 request(s)
Test File Size : 1023MB
File Fragments : 1
Block Size : 1MB
File Server Optimised : No

Benchmark Breakdown
Buffered Read : 69 MB/s
Sequential Read : 103 MB/s
Random Read : 55 MB/s
Buffered Write : 12 MB/s
Sequential Write : 10 MB/s
Random Write : 4 MB/s
Average Access Time : 8 ms (estimated)

Drive
Drive Type : Hard Disk
Total Size : 572GB
Free Space : 571GB, 99%

Anyone with experience with SATA raid setups who can share their benchmarks would be nice.

 

 

 

 

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