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Date:      Tue, 06 May 2003 22:30:53 +0200
From:      "Poul-Henning Kamp" <phk@phk.freebsd.dk>
To:        "Lucky Green" <shamrock@cypherpunks.to>
Cc:        freebsd-arch@freebsd.org
Subject:   Re: Putting gbde to use: changes to fstab(5)? 
Message-ID:  <58760.1052253053@critter.freebsd.dk>
In-Reply-To: Your message of "Tue, 06 May 2003 13:10:32 PDT." <007901c3140b$8ccbad20$6601a8c0@VAIO650> 

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In message <007901c3140b$8ccbad20$6601a8c0@VAIO650>, "Lucky Green" writes:

>I believe there is a need for a convention specifying where and how
>gbde(4)(8) encrypted devices should be listed in system configuration
>files. I don't hugely care what convention will be chosen is as long as
>there exists a clear convention that will enable authors to write
>software that will make it easy to deploy gbde.

I fully agree this far.

The point where I start to get uneasy is where people think this will
only be about GBDE.

I hope to soon unleash a GEOM class I'm playing with here, which
allows configuration of multi-path to a device.  This will mainly
be useful for SAN environments where it enables use of dual FC
adapters and redundant fibres, but it can also be used with plain
SCSI.

A number of other GEOM classes still only at the conceptual or
very early "proof of concept" level may also require "manual
configuration" (as opposed to "autoconfiguration").

In from the left comes the issue of removable devices and an interface
to devd(8) or if that is impossible: the creation of a vold(8)/geomd(8)
or possibly hi-jacking of amd(8)

I am not saying that you should not go ahead, in fact, if you have
time you should, but I really would prefer if we can avoid seeing
an explosion of config files along the lines of:
	/etc/gbde.cf
	/etc/gmirror.cf
	/etc/graid5.cf
	/etc/gxxx.cf
	...

There got to be some way we can do this in sufficiently general
way, that it can be reused for other GEOM classes ?

I'm sorry I cannot take an active lead in this, but my TODO list
has recently eaten my pencil and the judge rule that it was a clear
and justified act of self-defence.

Poul-Henning

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.



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