Re: [RFC] [PATCH] 0/7 2.5.35 SCSI multi-path

From: Bill Davidsen (
Date: Thu Sep 19 2002 - 16:16:43 EST

On Wed, 18 Sep 2002, Patrick Mansfield wrote:

> Devices without serial numbers are treated as if they had different serial
> numbers, they show up as if there was no multi-path support.

That doesn't solve the problem, does it? If you have two devices w/o
serial they could look like one with multipath, with the change you note
that is prevented by making a single multipath device w/o serial look like
two. I have visions of programs using /dev/st0 and /dev/st1, having used
backup programs which grabbed every drive with a tape ready.

It is indeed a messy problem.

bill davidsen <>
  CTO, TMR Associates, Inc
Doing interesting things with little computers since 1979.

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