Re: Accessing disks via their serial numbers.

In message <20060626080038.GA12511@xxxxxxxxxxxxxxxxx>, Pawel Jakub Dawidek writ
es:

There is a not at all subtle difference between names which relate
to the contents of the disk (as for g_label) or names which relate
to a specific physical position (as for ATA_STATIC_ID) and what you
propose where the name binds to a specific drive mechanism.

The former two allows you to do offline copy/recovery and replacement
of a disk drive, the latter does not.

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

When is it not acceptable ?

And is this the only reason why you think we need serial numbers for
names ?

[...], but we need to have a general
mechanism inside the kernel for getting such informations.

This is a very broad statement, and I don't agree (yet).

--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk@xxxxxxxxxxx | 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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