From owner-freebsd-hubs  Fri Jan 17 15:32: 9 2003
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Date: Fri, 17 Jan 2003 18:32:04 -0500 (EST)
From: Garrett Wollman <wollman@lcs.mit.edu>
Message-Id: <200301172332.h0HNW47s082147@khavrinen.lcs.mit.edu>
To: "Erik Gault" <e@gaultopia.org>
Cc: hubs@FreeBSD.ORG
Subject: Re: partition size, block size, fragment size,
      inode count for cvsupd
In-Reply-To: <30804.152.163.190.1.1042581943.squirrel@www.gaultopia.org>
References: <20030114205109.GA21376@nevermind.kiev.ua>
	<30804.152.163.190.1.1042581943.squirrel@www.gaultopia.org>
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<<On Tue, 14 Jan 2003 17:05:43 -0500 (EST), "Erik Gault" <e@gaultopia.org> said:

> For what it's worth, cvsup2.freebsd.org is set up with two mirror pairs,
> one for / and friends and one for all the cvs data (/cvs).

Here's how cvsup3 is set up:

- Operating system is stored on a Fibre Channel-attached five-disk
RAID-5 set.

- CVS repository is stored on a four-disk stripe set on the same Fibre
Channel RAID controller.

- All of the FTP archive, except for FreeBSD, is stored on another
partition of the same stripe set.  This includes less-popular archives
such as CPAN, CTAN, Tcl, Ruby, X, and so forth.

- The FreeBSD archive is stored on a two-disk stripe set on a pair of
Seagate ST150176LC disks donated by Robert Seastrom, attached to the
server's on-board Adaptec AIC7899 host adapter.  The striping is
accomplished using ccd(4) with an interleave of 2048.  The filesystem
was initialized with 4097 sectors per ``cylinder'', which results in
the metadata being spread evenly over both disks.

I have temporarily upgraded this machine with an extra half-gig of
memory to provide reasonable service during the peak loads expected
for 5.0-RELEASE.

-GAWollman


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