Re: Persistent device names

[Junichi Uekawa <dancer@netfort.gr.jp>]

Hi,

> > - Are there likely to be architecture specific issues with persistent
> >   device naming?
> > - Or with filesystems other than ext2/ext3?
> Nothing I know about. "tree /dev/disk/" should give you some ideas.
> by-label links are user friendly, but may become ambiguous if users
> carelessly duplicate file systems using dd. by-uuid links have the same
> problem *and* need a suitable identifier in the file system metadata.
> by-id links are more unique but linked to the physical hardware (you
> can't have it both ways...) and are a bit ugly.
> by-path links are very descriptive and really unique, but are *really*
> unique and will change if a disk is moved to a different bus position
> or something like this.


Some enterprise-level storage systems have disk-level duplication
system, as such, filesystem-label-based mount-point would not be the
end-all way of approaching the problem.

It might be less error-prone if bus/card info is used in addition to
the filesystem UUID.


regards,
	junichi