[sles-beta] Question: Migration tools for ISCSI config from SLES11

[Darren Thompson]

Lee

To get the migration recipe developed, is the appropriate form a "request
for Improvement" or a SR at this time?

As an aside, " The only iSCSI target that is discontinued in SLE12 is
"iscsitarget"." => This is actually the service start script used by YAST
(e.g. SLES11) when it configures STGT ISCSI targets so removal of
this service script will stop the "legacy" configuration from continuing
after the SLES12 upgrade.

This is definitely more complex than it first appears.

Darren


On 9 July 2014 07:16, Lee Duncan <lduncan at suse.com> wrote:

> On 07/07/2014 02:43 PM, Darren Thompson wrote:
> > Lee
> >
> > From an "end user" perspective, the default tools are what YAST defaults
> > to, in this case they have changed from SLES11 to SLES12.
>
> First of all, I believe many end users do not use Yast. Certainly the
> "power users" do not. But that is a side point, is it not?
>
> I was not aware that Yast developers decided to switch the back-end
> target they wanted to use.
>
> >
> > Secondary question: How are we to upgrade a SLES11 server offering ISCSI
> > resources to SLES12 without loosing all our ISCSI configuarions (This
> > would require changing al the clients as well).
>
> During upgrade, if the system is using stgt, it will continue to work.
> But it looks like Yast will no longer be able to manage it.
>
> Some users will wish to continue using stgt if it "just works", rather
> than trying to migrate their data and configuration.
>
> There would be several steps required to move from stgt to
> lio-utils/targetcli:
>
> - Must move the target configuration, including:
>   - IQN
>   - ACL (access controls)
>   - target portal group number
>   - back-end storage
>
> - Must either move the data from one store to another, or must use the
> same back-end store (better). But not all back-end stores supported by
> stgt may be supported by lio-utils/targetcli -- but let's hope not.
>
> Since the SLE 11 SP3 yast code knows stgt, it should be able to extract
> all of this information, since it already has to do this to manage these
> targets.
>
> And the SLE 12 code already seems to grok lio-utils/targetcli, since it
> chose to use this for a back-end.
>
> So creating a migration recipe should not be too difficult.
>
> >
> > Darren
> >
> >
> > On 8 July 2014 00:25, Lee Duncan <lduncan at suse.com
> > <mailto:lduncan at suse.com>> wrote:
> >
> >     On 07/06/2014 02:08 PM, Darren Thompson wrote:
> >     > Team
> >     >
> >     > The ISCSI engine changes from SLES11 to SLES12
> >     >
> >     > In SLES11 they were (STGT/TGT) based but under SLES12 they are LIO
> >     based.
> >
> >     This is not strictly true. The _prefered_ iSCSI target has changed
> >     upstream to kernel-based targets.
> >
> >     The only iSCSI target that is discontinued in SLE12 is "iscsitarget".
> >
> >     >
> >     > Is thaere any tools to parse/migrate a valid SLES11 ISCSI
> >     configuartion
> >     > to a SLES12 ISCSI configuration, in particular I would like to
> ensure
> >     > that what is presented to the ISCSI clients is identical so their
> >     > configuration is not scrambled.
> >
> >     No tools that I know of.
> >
> >     >
> >     > --
> >     >
> >     > Darren Thompson
> >     >
> >     > Professional Services Engineer / Consultant
> >     >
> >     >  *cid:image001.jpg at 01CB7C0C.6C6A2AE0*
> >     >
> >     > Level 3, 60 City Road
> >     >
> >     > Southgate, VIC 3006
> >     >
> >     > Mb: 0400 640 414
> >     >
> >     > Mail: darrent at akurit.com.au <mailto:darrent at akurit.com.au>
> >     <mailto:steve at akurit.com.au <mailto:steve at akurit.com.au>>
> >     > Web: www.akurit.com.au <http://www.akurit.com.au>
> >     <http://www.akurit.com.au/>
> >     >
> >
> >     --
> >     Lee Duncan
> >     SUSE Labs
> >
> >
> >
> >
> > --
> >
> > Darren Thompson
> >
> > Professional Services Engineer / Consultant
> >
> >  *cid:image001.jpg at 01CB7C0C.6C6A2AE0*
> >
> > Level 3, 60 City Road
> >
> > Southgate, VIC 3006
> >
> > Mb: 0400 640 414
> >
> > Mail: darrent at akurit.com.au <mailto:steve at akurit.com.au>
> > Web: www.akurit.com.au <http://www.akurit.com.au/>
> >
>
> --
> Lee Duncan
> SUSE Labs
>



-- 

Darren Thompson

Professional Services Engineer / Consultant

 *[image: cid:image001.jpg at 01CB7C0C.6C6A2AE0]*

Level 3, 60 City Road

Southgate, VIC 3006

Mb: 0400 640 414

Mail: darrent at akurit.com.au <steve at akurit.com.au>
Web: www.akurit.com.au
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.suse.com/mailman/private/sles-beta/attachments/20140709/2c2f3431/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image003.jpg
Type: image/jpeg
Size: 3692 bytes
Desc: not available
URL: <http://lists.suse.com/mailman/private/sles-beta/attachments/20140709/2c2f3431/attachment.jpg>