[Stgt-devel] Adding Virtual Tape & Changer targets

[Mark Harvey]

The aim is to support the SSC-3 and SMC-3 standards - eventually. No
actual code that says "emulate robot xyz".
The vtl code I'm using reports as a STK L700 with no ill side effects.

The actual VENDOR Ident, Product Ident etc for the SCSI Inquiry string
are to be retrieved from a configuration file - and hence code
independent.

I hope nobody shoots me for hijacking the '-b <backing file>' option for
use as the configuration file for SSC and SMC devices..

Once I clean up some comments in the code, I shall post a diff.

Cheers
Mark Harvey

-----Original Message-----
From: stgt-devel-bounces at lists.berlios.de
[mailto:stgt-devel-bounces at lists.berlios.de] On Behalf Of Ming Zhang
Sent: Thursday, 22 March 2007 12:44 AM
To: Mark Harvey
Cc: stgt-devel at lists.berlios.de
Subject: Re: [Stgt-devel] Adding Virtial Tape & Changer targets

On Wed, 2007-03-21 at 12:39 +1100, Mark Harvey wrote:
> A quick introduction.
> 
> I am planning on adding support to the stgt for both SSC and SMC
> devices with the aim of full Virtual Tape Library support.
> 
> I have a working VTL based around the scsi_debug kernel module +
> char-device 'back-end' to pass SCSI commands thru to user-space
> daemons (which poll the char device looking for work to do). These
> daemons act as the SSC or SMC devices.
> 
> This VTL I have had working for over 12mths. 

side question, your SSC/SMC code support to emulate one particular
VT/VTL or you will provide a framework to allow the emulation of
multiple different types of VTLs and VTs?

suggest you to release the code early so people can give you more
feedback.

thanks for the great work.

Ming


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