On Mon, 14 Dec 1998 [EMAIL PROTECTED] wrote:
> 2.1.131-ac11 + raid0145-19981214-2.1.131-ac9 (no autostart)
>
> 4-way P6-200, 1G ram, 10 9.1G Seagate drives (9 in raid-5 with 1 spare)
> across two aic-7880 controllers (on the MB)
>
> ---Sequential Output ---Sequential Input--
2.1.131-ac11 + raid0145-19981214-2.1.131-ac9 (no autostart)
4-way P6-200, 1G ram, 10 9.1G Seagate drives (9 in raid-5 with 1 spare)
across two aic-7880 controllers (on the MB)
---Sequential Output ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char-
how would one use these statistics to diagnose how to improve raid
performance??
hdparm -t -T /dev/md1
/dev/md1:
Timing buffer-cache reads:64MB in 1.36 seconds =47.06 MB/sec
Timing buffered disk reads:32 MB in 4.01 seconds = 7.98MB/sec
Seeker 1...Seeker 2...Seeker 3...start 'em...done...
