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Date: Fri, 11 Apr 2003 11:58:52 +0200
From: Pavel Machek <pavel@ucw.cz>
To: Roman Zippel <zippel@linux-m68k.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>, linux-kernel@vger.kernel.org
Subject: Re: 64-bit kdev_t - just for playing
Message-ID: <20030411095852.GA5064@zaurus.ucw.cz>
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Hi!

> so it's easy to map to a fixed number. SCSI already has to use dynamic 
> numbers, because it wouldn't otherwise fit into a 16bit dev_t and with SAN 
> even 64bit will not be enough. This makes SCSI very annoying, when at the 
> next boot everything has a new name, because a disk was added/removed.

Ugh? 64bits not enough? I don't think so.
You could do 20/44 bits split for example...
Or allocate 60000 majors just for disks.
But I do not think you have 2^32 disks
in any SAN.

-- 
				Pavel
Written on sharp zaurus, because my Velo1 broke. If you have Velo you don't need...