DL580 Disc throughput performance

[Nunney]

what is the standard data throughput for a DL580 with Ultra 160 73GB Discs.

What could be causing throughput to slow down & effect performance?

[Mi6t0]

It depends on the HDDs, on the RAID and also on other tings.

Please provide more info for your problem.

[KarloChacon]

hi

I agreee with Mi6t0.

check this:

Throughput: This number represents the theoretical maximum amount of data that can be moved across the SCSI bus, and is measured in millions of bytes per second (MB/s). On a narrow bus, throughput and transfer rate are the same, because each transfer is of 8 bits (one byte). But for a wide bus, throughput is double transfer rate, because each transfer is of 16 bits--two bytes.

http://www.storagereview.com/guide2000/ref/hdd/if/scsi/summary.html

regards

[Nunney]

I'm getting peaks of 8mbs & then flatlines of 15mbs. I suspect the 5i Controller or the cache mem mod on it?

[Brian_Murdoch]

Hi,

Run the Array Diagnostic Utility (ADU) and submit the report file in your next reply.
This can then be analysed for any underlying disk, 5i or cache problems.

If it's a Windows based system the ADU can be downloaded from here.
http://h18023.www1.hp.com/support/files/server/us/download/27531.html

If it's already installed it can be accessed via Start-Programs-HP System Tools-HP Array Diagnostic Utility.

Regards,

Brian