*BSD News Article 94099


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From: ripley@nostromo.in-berlin.de (H. Eckert)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: More partitions than default devices?
Date: 20 Apr 1997 20:19:30 GMT
Organization: Private access site (FreeBSD 2.2.1), Berlin, Germany, Europe
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long@njl2.materials.ox.ac.uk (Neil J Long):
> What is the 'correct' way to add more partitions on a scsi disk?
> The MAKEDEV in 2.2-stable limits it to 4 for sd, e.g.
> ll sd0s?e
> brw-r-----  1 root  operator    4, 0x00020004 Feb 24 13:04 sd0s1e
> brw-r-----  1 root  operator    4, 0x00030004 Feb 24 13:04 sd0s2e
> brw-r-----  1 root  operator    4, 0x00040004 Feb 24 13:04 sd0s3e
> brw-r-----  1 root  operator    4, 0x00050004 Feb 24 13:04 sd0s4e

Yet another case of BIOS brain damage.  What you do get are four
*slices* (called primary partitions in the DOS world).  Each of these
is capable to hold seven FreeBSD filesystems.  Even with the old
2GByte limit this should be more than sufficient.  And this limitation
was present at 4.2BSD ;-)
(But then, my Ultrix-driven DECstation only has one slice per disk,
so it is limited to 7 filesystems per disk)

I don't see a reason you should not be able to have a huge data
partition.  Scalability of Unix fs's is much better than M$-crap.

Greetings,
				Ripley
-- 
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