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Date: Fri, 18 Oct 1996 00:20:04 +0200
To: fs@freebsd.org, questions@freebsd.org
From: Michael Beckmann <petzi@zit.th-darmstadt.de>
Subject: ccd setup for striping
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I have made a kernel with ccd support on two of my 2.1.5 systems, and made
the ccd devices ccd0 through ccd4 . I would like to concatenate and stripe
the disks which hold the newsspool on these servers. I have 4 drives with 2
GB each, and they currently have filesystems on them like

/dev/sd1s1e
/dev/sd2s1e
/dev/sd3s1e
/dev/sd4s1e

what must I do in order to prepare them for use with ccd ? The manpage
speaks about devices named sd2e, sd3e, sd4e, which confuse me a bit. Do I
need special disklabels ? Can I use the disks as they are ? I currently use
the disks in their entirety for only one filesystem, no DOS partitions on
them.

Another question I have is, can I use an odd number of disks for striping ?
Is it advisable to use ccd if I want to concatenate (stripe) 3, 5 or 6 disks ?

Cheers,

Michael