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Date: Mon, 27 Feb 2006 10:20:05 -0800 (PST)
From: Tom Samplonius <tom@uniserve.com>
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Subject: Re: Qlogic fibre channel support questions
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On Mon, 27 Feb 2006, Matthew Jacob wrote:

> Why do you want to boot from SAN? Don't the blades have space for a
> local boot disk?


   IBM blades do not have hotswappable drives on the blades.  So you have to 
remove the blade to get at the drives.  Plus, the drives pump up the chassis 
power consumption as well.  (Well, there is SCSI side-car option, but it eats up 
a blade slot.)

   So consolidating all storage on the SAN, make sense.  Managing a bunch of 10GB 
boot LUNs is going to easier than dealing with 28 physical drives (2 per blade). 
I can put a pair of mirrored 146GB disks on the SAN, and slice out 10GB per 
blade.  It is even a bit cheaper, including the SAN 64 partition licence.

Tom