Re: devfs persistence

From: Rodger Wilson {I/O Software} (
Date: Thu Apr 27 2000 - 12:36:09 EST

I quickly read through the paper, and came up with a question.

Talking about persistence -- what about scsi device that dynamically
change their target id's (i.e. fiber channel). How do we make sure that
we continue to refernce disk1 as disk1. With a possible 16 million
devices this could get hairy.

If we are wanting to have multi-pathed access to a drive it would be nice
to have that reflected in the dev tree, but it would also be nice to
easily refer to a unique drive, via WWN. By using the World Wide Number
we can make sure that we know exactly which drive we are refering to.

(I have to run -- maybe more later)

Rodger Wilson
Target and SCSI Drivers (Sun Microsystems, Inc.)
DIRECT: (303) 272-8252 HOME: (303) 499-9498
FAX: (303) 272-7793 CELL: (303) 669-7955
PAGER: (303) 203-8561 EMAIL:

On Thu, 27 Apr 2000, Richard Gooch wrote:

> Rodger Wilson writes:
> > Has anyone writting a document as to how devfs is going to be
> > persistent accross reboots and what the devfs naming conventions are
> > going to be?
> YES! Have you missed all the announcements?!?
> > Also will linux then uses a dev directory containing friendly names
> > that are symbolically linked to the real devices?
> YES! Read the docs.
> Regards,
> Richard....
> Permanent:
> Current:

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at

This archive was generated by hypermail 2b29 : Sun Apr 30 2000 - 21:00:13 EST