[LSF/MM TOPIC] Making sure soft SCSI Targets are Valid

[LSF/MM TOPIC] Making sure soft SCSI Targets are Valid

[Lee Duncan]

Hi:

I'm not sure if there is much interest in this, but I've recently
realized that there is no good free software to validate iSCSI targets,
not to mention FCOE targets, IB soft targets, etc. There's just no way
to know if any change you make is "legal" short of learning to speak
SCSI geek spec (or waiting to see what fails when you make a subtle change).

So I have been working with the (user-space) libiscsi creator and
maintainer, Ronnie Sahlberg, to enhance his test suite. But this only
addresses iSCSI targets. Some of his tests have already shown problems
like kernel panics when an incorrect bit is injected, showing the need
for such testing.

It occurs to me it would be most valuable if we had more generic SCSI
tests, not even limited to soft targets, available to developers and
manufacturers. How best to support such tests with our SCSI layer, and
what tests are needed now and in the future may be a good topic for
discussion.
-- 
Lee Duncan
SUSE Labs

Re: [LSF/MM TOPIC] Making sure soft SCSI Targets are Valid

[Nicholas A. Bellinger]

On Tue, 2013-01-29 at 11:13 -0800, Lee Duncan wrote:
> Hi:
> 
> I'm not sure if there is much interest in this, but I've recently
> realized that there is no good free software to validate iSCSI targets,
> not to mention FCOE targets, IB soft targets, etc. There's just no way
> to know if any change you make is "legal" short of learning to speak
> SCSI geek spec (or waiting to see what fails when you make a subtle change).
> 
> So I have been working with the (user-space) libiscsi creator and
> maintainer, Ronnie Sahlberg, to enhance his test suite. But this only
> addresses iSCSI targets. Some of his tests have already shown problems
> like kernel panics when an incorrect bit is injected, showing the need
> for such testing.
> 
> It occurs to me it would be most valuable if we had more generic SCSI
> tests, not even limited to soft targets, available to developers and
> manufacturers. How best to support such tests with our SCSI layer, and
> what tests are needed now and in the future may be a good topic for
> discussion.

+1.

Please count me in for this discussion.  There are a number of CDB level
tests that need to be added to scsi-testsuite.git, and I'd really love
to get those interested working on a single codebase for SCSI target
verification.

--nab

[LSF/MM TOPIC] Making sure soft SCSI Targets are Valid

[ronnie sahlberg]

Hi,

This is my attend request to to co-present a paper with Lee Duncan.

regards
ronnie sahlberg

On Tue, Jan 29, 2013 at 11:13 AM, Lee Duncan <lduncan@suse.com> wrote:
> Hi:
>
> I'm not sure if there is much interest in this, but I've recently
> realized that there is no good free software to validate iSCSI targets,
> not to mention FCOE targets, IB soft targets, etc. There's just no way
> to know if any change you make is "legal" short of learning to speak
> SCSI geek spec (or waiting to see what fails when you make a subtle change).
>
> So I have been working with the (user-space) libiscsi creator and
> maintainer, Ronnie Sahlberg, to enhance his test suite. But this only
> addresses iSCSI targets. Some of his tests have already shown problems
> like kernel panics when an incorrect bit is injected, showing the need
> for such testing.
>
> It occurs to me it would be most valuable if we had more generic SCSI
> tests, not even limited to soft targets, available to developers and
> manufacturers. How best to support such tests with our SCSI layer, and
> what tests are needed now and in the future may be a good topic for
> discussion.
> --
> Lee Duncan
> SUSE Labs

[LSF/MM TOPIC] Making sure soft SCSI Targets are Valid

[ronnie sahlberg]

Hi All

I would like to attend LSF/MM and talk with people about scsi and iscsi testing.

I am the author/maintainer for libiscsi which is userspace initiator
used primarily by KVM/QEMU.
This package also includes a pretty big test suite for mainly SCSI but
also a lot of interesting iSCSI tests.

As someone hacking on a testsuite, I would like to meet with initiator
and target implementors and talk
about the existing test suites, and how we can work together from here.


What can i bring to FSF/MM?
========================
I like SCSI and I like writing tests.
I have a big existing testsuite that I think at least some of you can
benefit from.
I would like to talk to people on how to make the test suite even better.
Can we work out a platform where we can build even better and more
comprehensive test suites ?
etc.


regards
ronnie sahlberg

On Tue, Jan 29, 2013 at 11:13 AM, Lee Duncan <lduncan@suse.com> wrote:
> Hi:
>
> I'm not sure if there is much interest in this, but I've recently
> realized that there is no good free software to validate iSCSI targets,
> not to mention FCOE targets, IB soft targets, etc. There's just no way
> to know if any change you make is "legal" short of learning to speak
> SCSI geek spec (or waiting to see what fails when you make a subtle change).
>
> So I have been working with the (user-space) libiscsi creator and
> maintainer, Ronnie Sahlberg, to enhance his test suite. But this only
> addresses iSCSI targets. Some of his tests have already shown problems
> like kernel panics when an incorrect bit is injected, showing the need
> for such testing.
>
> It occurs to me it would be most valuable if we had more generic SCSI
> tests, not even limited to soft targets, available to developers and
> manufacturers. How best to support such tests with our SCSI layer, and
> what tests are needed now and in the future may be a good topic for
> discussion.
> --
> Lee Duncan
> SUSE Labs