Re: LANANA: To Pending Device Number Registrants

Linus Torvalds
2001-05-15T21:37:18Z

On Tue, 15 May 2001, Alex Bligh - linux-kernel wrote:
>
> Q: Let us assume you have dynamic numbering disk0..N as you suggest,
> and you have some s/w RAID of SCSI disks. A disk fails, and is (hot)
> removed. Life continues. You reboot the machine. Disks are now numbered
> disk0..(N-1). If the RAID config specifies using disk0..N thusly,

If you have a raid config like that, then you're screwed _whatever_ you
do.

Look into using UUID's, which fix this properly.

And note, btw, how I think the md autorun stuff do all of this the RIGHT
way. Where RIGHT very much includes not using positional information etc.

Linus