*BSD News Article 93311


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From: Tony Griffiths <tonyg@OntheNet.com.au>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: More FS'es on HD??
Date: Fri, 11 Apr 1997 10:45:36 +1000
Organization: On the Net (ISP on the Gold Coast, Australia)
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To: "S.T.Chang" <chang@narwhal.sns.com.sg>
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S.T.Chang wrote:
> 
> Dear All,
> 
>         I was trying to install FreeBSD on a 3.2GB HD. Rather than
> having a few large FS'es, I tried to create more smaller FS'es.
> Then partition layout was as follows.
> 
>         wd0s1           DOS             150MB
>         wd0s2       EMPTY               280MB
>         wd0s3   FreeBSD /               40MB
>         wd0s4   Other FreeBSD slices    Rest of HD

I'm not sure why you put / in it's own disk slice and the other
filesystems in slice 4.  Within each slice, it is possible to partition
[a..h] (ie. 8 separate filesystems/swap partitions).  This should be
plenty for most people.

The only reasons that I can see for separate filesystems are-

	(a) rw .v. ro filesystems
	(b) different backup strategies (ie. daily .v. weekly .v. never)
	(c) different block/frag/inode requirements

On our proxy server, I have /, /usr, .../logs, .../cache filesystems as
well as 3 raw paritions used for swapping.  These are spread over 4
physical drives with 2 of the drives a ccd pseudo-device!

> 
>         While subpartition /dev/wd0s4, I hited the limit after reaching
> /dev/wd0s4h. Subsequent FS creation through the sysinstall menu
> give me /dev/X.

I suspect that 'h' is the last possible partition because it is the 8th
letter of the alphabet.  I have never seen a Unix system with a higher
partition letter!!!

> 
>         Is there a way to get pass this problem?? Or I just have to
> have less FS'es which are larger in size?
> 
No (probably), and Yes.  Why do you want SO MANY filesystems, all on the
one physical drive?  The heads will be bouncing all over the place...

>         Thanks in advance.
> 
> Regards
> S.T.Chang
> --
Tony