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Date: Wed, 16 Oct 2002 03:11:23 +0800
From: Michael Clark <michael@metaparadigm.com>
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To: Steven Dake <sdake@mvista.com>
Cc: Greg KH <greg@kroah.com>, linux-kernel@vger.kernel.org
Subject: Re: [ANNOUNCE] [PATCHES] Advanced TCA Hotswap Support in Linux Kernel
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On 10/16/02 01:38, Steven Dake wrote:

> At this point, there isn't anything using them.  I am working on a 
> hotswap manager, that may be in kernel space (for performance reasons) 
> that may use these interfaces.  I'm also working on a SAFTE Hotswap 
> processor module (ie; drivers/scsi/sp.c) for the SCSI subsystem that 
> uses these interfaces.  (Safte is a hotswap standard for SCSI chassis).

Do you really want to have SAF-TE polling in the kernel?

This can easily be accomplished in userspace using sg.

safte-monitor <http://gort.metaparadigm.com/safte-monitor/> can already
provde disk insertion, removal notifications in userspace and already
supports calling out to a script with the physical slot location information
(and with tweaks to the code, scsi device of the disk inserted)

There is even code in safte-monitor to identify the wwn of the devices
in each slot, although it needs updating to the latest qlogic ioctl
interface (or hbaapi).

~mc

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