Re: Accessing disks via their serial numbers.

On Mon, Jun 26, 2006 at 11:21:02AM +0000, Poul-Henning Kamp wrote:
In message <20060626095250.GB12511@xxxxxxxxxxxxxxxxx>, Pawel Jakub Dawidek writ
es:

Glabel(8) currently supports labeling any GEOM provider, but it steals
the last sector, which is not always acceptable.
=20
When is it not acceptable ?

When last sector is already occupied.

And what is last sector occupied by ?

This is simlar situation to the most common problem with gmirror(8).
When people decide to put their file system onto a mirror, it will eat
partition's last sector, which isn't always safe.
When disk is already partitioned and file systems are there, you cannot
just take the last sector.

I hope we don't play "convince phk@" game here.

In fact we do. I still very much consider myself in charge of
GEOM architecture, so anything that changes the GEOM api need to
pass the "convince phk" threshold.

I think this won't touch GEOM infrastructure. Most likely disk(9) KPI
will be extended.

--
Pawel Jakub Dawidek http://www.wheel.pl
pjd@xxxxxxxxxxx http://www.FreeBSD.org
FreeBSD committer Am I Evil? Yes, I Am!

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