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Date:      Tue, 15 Mar 2011 11:47:06 -0400
From:      "illoai@gmail.com" <illoai@gmail.com>
To:        freebsd_user@guice.ath.cx
Cc:        freebsd-questions@freebsd.org
Subject:   Re: IDE -- mount partitions for better performance
Message-ID:  <AANLkTikGuur%2BmQ5erPg7rr3igkoun5eqeJXFW2=1YSEV@mail.gmail.com>
In-Reply-To: <8a6023db5a3d4c8b34161f7ee0af29bb.squirrel@wtp1.ath.cx>
References:  <8a6023db5a3d4c8b34161f7ee0af29bb.squirrel@wtp1.ath.cx>

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On 14 March 2011 20:00,  <freebsd_user@guice.ath.cx> wrote:
> freebsd-questions@freebsd.org
>
> Guidance with the following:
>
> We are limited to Support for ATA-100/66/33 IDE and ATAPI compliant
> devices. =A0With that said, we have our atapi/33 optical on a add in
> controller (PCI) and are seeking to place four HDD=92s on the main boards
> controllers. =A0Our dilemma is where to place /, /tmp, /usr and /var from=
 a
> performance standpoint. =A0We understand that /var =A0does quite a bit of
> writing and probably should go on the master hdd, but what about the /usr=
,
> /tmp and root? =A0Hell, I=92m not sure my thinking is sane as to where I
> =91think=92 /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-serve=
r)
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.

--=20
--



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