IDE -- mount partitions for better performance
illoai at gmail.com
illoai at gmail.com
Tue Mar 15 15:47:35 UTC 2011
On 14 March 2011 20:00, <freebsd_user at guice.ath.cx> wrote:
> freebsd-questions at freebsd.org
>
> Guidance with the following:
>
> We are limited to Support for ATA-100/66/33 IDE and ATAPI compliant
> devices. With that said, we have our atapi/33 optical on a add in
> controller (PCI) and are seeking to place four HDD’s on the main boards
> controllers. Our dilemma is where to place /, /tmp, /usr and /var from a
> performance standpoint. We understand that /var does quite a bit of
> writing and probably should go on the master hdd, but what about the /usr,
> /tmp and root? Hell, I’m not sure my thinking is sane as to where I
> ‘think’ /var should be placed/mounted.
>
It depends on very many things. tmpfs(5) has been extremely stable
for me, definitely safe enough for /tmp. Make sure you have plenty of
swap, though.
If the bits in /var aren't life or death (or at least production mail-server)
you can get by with it being mounted on a volatile filesystem (like tmpfs
or mdmfs) and backed up occasionally (via cron or similar). If you
absolutely can't afford to lose even 5 minutes of /var's past you'd be
better off mirroring.
I generally put / & /usr on the same disk, they're reasonably small &
written to very little, if you symlink /usr/obj, /usr/src, & /usr/ports.
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