Re: Raid 1 (non) performance
From: Magnus Naeslund(k) <hidden>
Date: 2006-11-20 14:12:19
dean gaudet wrote:
i see you have split /var and / on the same spindle... if your /home is on / then you're causing extra seek action by having two active filesystems on the same spindles. another option to consider is to make / small and mostly read-only and move /home to /var/home (and use a symlink or mount --bind to place it at /home).
Yes I have it like this now: /var/bind/home on /home type bind (rw,bind,noatime)
hopefully your swap isn't being used much anyhow.
Zero used, infact.
try "iostat -kx /dev/sd* 5" and see if the split is causing you troubles -- i/o activity on more than one partition at once.
It seems to be roughly the same numbers on the disks.
turning off write caching is a recipe for disasterous performance on most ata disks... unfortunately. better to buy a UPS and set up nut or apcupsd or something to handle shutdown. or just take your chances.
This is a mail server, I would like it to not lose mail if there is an power outage. Is there anything one can do without buying more hardware? Thanks for the feedback, Magnus