I've just acquired a second 60GB HDD and made up a Software RAID 0 (stripe). The problem is that after running a couple of bechmarks, results are not as good as I expected after reading the Software RAID howto (<A HREF="http://www4.tomshardware.com/howto/01q3/010906/" target="_new">http://www4.tomshardware.com/howto/01q3/010906/</A>). Here's my test setup:
Hard:
Micro: Pentium IV 1.7G
Mother: Asus P4T (Chipset: Intel 850)
Memory: 256 RIMM
HDD 1: Quantum Fireball Plus AS 60 (as Primary Master)
HDD 2: Seagate Barracuda ATA IV ST360021A ( as Secondary Master)
(Connection cables: ATA-100, 80 pin)
+ cdrom, sound card (other non relevant stuff) ...
OS:
Windows XP Professional
Drivers:
Chipset: Intel 3.20.1008
Busmaster: Intel® Application Accelerator 2.2
Settings:
DMA: UDMA-5
Transfer mode limit: No limit.
Auto-acustic management: Quantum: Disabled, Seagate: Max performance (It won't let me set it to Disabled)
Partitions:
C (NTFS, 3.00 GB at Seagate)
D (NTFS, 5.99 GB stripped)
T (NTFS, 99.2 GB stripped)
W (NTFS, 3.00 GB at Quantum)
Benchmark tool: SiSoftware Sandra 2002 Standard, default settings (windows cache disabled)
Results:
Partition:................C.....D.....T.....W
Buffered Read (MB/s)......66....63....72....72
Sequential Read (MB/s)....30....33....29....20
Random Read (MB/s)........6.....7.....8.....5
Buffered Write (MB/s).....51....47....57....55
Sequential Write (MB/s)...33....43....46....20
Random Write (MB/s).......8.....10....15....6
Average Access Time (ms)..8.....7.....6.....9
What I should expect from my RAID partitions (D and T) is a 30+20~50 MB/s Sequential Read and a 33+20~53 MB/s Sequential Write. As you may see, my RAID Sequential Write is close enough to my expectations (43-46 MB/s) but the Sequential Read (33-29 MB/s) is prety poor, as if there was the Seagate alonee...
I appreciate any suggestions. Thanks in advance for reading all this stuff :^)
Boogerman
Hard:
Micro: Pentium IV 1.7G
Mother: Asus P4T (Chipset: Intel 850)
Memory: 256 RIMM
HDD 1: Quantum Fireball Plus AS 60 (as Primary Master)
HDD 2: Seagate Barracuda ATA IV ST360021A ( as Secondary Master)
(Connection cables: ATA-100, 80 pin)
+ cdrom, sound card (other non relevant stuff) ...
OS:
Windows XP Professional
Drivers:
Chipset: Intel 3.20.1008
Busmaster: Intel® Application Accelerator 2.2
Settings:
DMA: UDMA-5
Transfer mode limit: No limit.
Auto-acustic management: Quantum: Disabled, Seagate: Max performance (It won't let me set it to Disabled)
Partitions:
C (NTFS, 3.00 GB at Seagate)
D (NTFS, 5.99 GB stripped)
T (NTFS, 99.2 GB stripped)
W (NTFS, 3.00 GB at Quantum)
Benchmark tool: SiSoftware Sandra 2002 Standard, default settings (windows cache disabled)
Results:
Partition:................C.....D.....T.....W
Buffered Read (MB/s)......66....63....72....72
Sequential Read (MB/s)....30....33....29....20
Random Read (MB/s)........6.....7.....8.....5
Buffered Write (MB/s).....51....47....57....55
Sequential Write (MB/s)...33....43....46....20
Random Write (MB/s).......8.....10....15....6
Average Access Time (ms)..8.....7.....6.....9
What I should expect from my RAID partitions (D and T) is a 30+20~50 MB/s Sequential Read and a 33+20~53 MB/s Sequential Write. As you may see, my RAID Sequential Write is close enough to my expectations (43-46 MB/s) but the Sequential Read (33-29 MB/s) is prety poor, as if there was the Seagate alonee...
I appreciate any suggestions. Thanks in advance for reading all this stuff :^)
Boogerman
<b><font color=blue> I took an I.Q. test today...It came back negative.</font color=blue></b> :lol:
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