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From: "Robert D. Keys" <bsdbob@seedlab1.cropsci.ncsu.edu>
Message-Id: <199808231600.MAA15841@seedlab1.cropsci.ncsu.edu>
Subject: Re: Whats a good size for a root partition?
In-Reply-To: <35DFE7F0.9D4FE094@chalmers.com.au> from Robert Chalmers at "Aug 23, 98 07:59:12 pm"
To: robert@chalmers.com.au
Date: Sun, 23 Aug 1998 12:00:54 -0400 (EDT)
Cc: freebsd-questions@FreeBSD.ORG
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> Based on FreeBSD 2.2.
> What are ideal partition sizes for the root, usr and var partitions,
> 
> Well, actularly the root partition anyway. There is no X installed
> 
> Bob

I dunno exactly what the gurus think, but in my experiences, I follow
a plan according to the disk sizes.

For very small drives (under 200M), root=24-32M, var=16M, usr=rest.

For 1 gig and under, generally,  root=32M, var=32M, usr=rest.

For over 1 gig, root=50M or 64M, var=32M-64M, usr=rest.

Swap is generally mem+1K to 2x(mem).  Does anyone know why the religious
tendency to 2x mem?  On my IBM AIX systems, swap only needs to be minimally
mem+24bytes.  If I have a lot of disk space, swap=32M.

I have run into situations were root became filled for some unknown
reason on large drives.  I sense it may have to do with inode table
sizes or such, but am not sure.  I just routinely add some on large
drives to keep things happy.

If possible, I prefer to use two drives and keep users things off the
usr file system on larger systems.

Does anyone know exactly what the minimum file system sizes actually are
for tiny drives on 2.2.7 or 3.0?

RDK


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