From: alan.nguyen@au.transport.bombardier.com
Date: Thu Sep 12 2002 - 20:20:03 EDT
Hi All,
Could anyone please show/explain to me
How could I find out that the Disks performance and RAID controller (Data
Path = Wide, Bus Speed = Fast with the Max Transfer Rate = either 10 or 20
MB/sec ) is not capable of handling the applications ? In other words, based
on what standard/evidences that the Disks & RAID are a bottleneck ?
Do the iostat show a number of transfers (tps) per second in unit of
kbytes/sec ?
tty re0 re1 fd0 rz0 cpu
tin tout bps tps bps tps bps tps bps tps us ni sy id
0 53 335 15 164 9 0 0 5 0 6 1 3 90
0 22782737 188 948 82 0 0 316 40 38 2 15 45
Collect tool show the Average Service Time & Average Wait Time of the Disk,
What are the acceptable figures for these measures ?
Alan
Alan.Nguyen@au.transport.bombardier.com
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