On 7/23/06, Richard Collyer <[EMAIL PROTECTED]> wrote:
Nikolas Britton wrote:
> On 7/22/06, Richard Collyer <[EMAIL PROTECTED]> wrote:
>> Completely ignore me. Write caching wasnt turned on.
> Even with write caching off you should be able to hit 50MB/s... did I
> missing something? Try running 'diskinfo -t /dev/diskname'. For
> refrence here are the numbers from my single 400GB Seagate ST3400832AS
> drive, if you can't bet it then something is wrong with your setup:
[EMAIL PROTECTED]:/home/richard] $ diskinfo -t /dev/da0
512 # sectorsize
499977814016 # mediasize in bytes (466G)
976519168 # mediasize in sectors
60785 # Cylinders according to firmware.
255 # Heads according to firmware.
63 # Sectors according to firmware.
Full stroke: 250 iter in 2.572859 sec = 10.291 msec
Half stroke: 250 iter in 2.957264 sec = 11.829 msec
Quarter stroke: 500 iter in 6.256571 sec = 12.513 msec
Short forward: 400 iter in 2.555676 sec = 6.389 msec
Short backward: 400 iter in 2.474576 sec = 6.186 msec
Seq outer: 2048 iter in 0.556584 sec = 0.272 msec
Seq inner: 2048 iter in 0.593798 sec = 0.290 msec
outside: 102400 kbytes in 2.080951 sec = 49208
middle: 102400 kbytes in 2.102060 sec = 48714
inside: 102400 kbytes in 2.054728 sec = 49836
Not too bad, not too great.
That would be unacceptable in my book. Whats the load on the system?
Is the 3ware 9500S in a regular PCI 33MHz/32-bit slot?
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