From owner-freebsd-current  Wed May 27 05:49:40 1998
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Date: Wed, 27 May 1998 22:49:28 +1000
From: Bruce Evans <bde@zeta.org.au>
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To: eivind@yes.no, mike@smith.net.au
Subject: Re: DPT install problem
Cc: current@FreeBSD.ORG, freebsd-scsi@FreeBSD.ORG
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>However, as long as the issue is only the size of the partitions, I
>think there are better ways of solving this - e.g, a compressing
>variant of the vn device.  This would let regression testing run on
>any box, instead of having to throw away 20GB of diskspace.  (There
>were also some hints about more issues in one of Tom's messages).

Or the standard variant of the vn devices.  It already compresses
never-written-to blocks to 4 bytes each.  I have tested files of size
16TB-1 and filesystems of size 1TB-512 on vn devices.  A 1TB file system
with 33 cylinder groups of size 31GB each took only 78 seconds to newfs
and 70 seconds to fsck (when it was empty :-).

Bruce

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