[sles-beta] [Sleha-beta] ISCSI issues with SLES12B7 - part2 ( ISCSI 'initiator' driver)

Richard Brown rbrown at suse.de
Wed May 28 06:15:36 MDT 2014


On Wed, 2014-05-28 at 21:44 +1000, Darren Thompson wrote:

> I'm still not able to work out how to bing a single SCSI target to
> multiple IP addresses (on a mutihomed host). Any hints here on how to
> do that part (it was easy in SLES11 as it just bound on all configured
> IP addresses by default).

Darren,

I'm not in a position to test this right now, however I'm 99% sure that
you can use the following command on your Target server to add
additional IP addresses to your target

"lio_node --addnp=<target name> <ip address>:<port>"

<target name> is that long string that is shown in YaST in the Targets
list
(LIO supports multiple targets, so you might have multiple IP's
allocated to only 1 or a few of your target..nifty feature..)

eg "lio_node
--addnp=iqn.2014-05.suse.qa:ca790687-c098-4dcb-9f12-b0aea1c1a899
10.122.2.65:3260" will add IP address 10.122.2.65 on Port 3260 to the
Target named iqn.2014-05.suse.qa:ca790687-c098-4dcb-9f12-b0aea1c1a899

You should then be able to confirm it's working by 

"lio_node --listendpoints"

Which should show you the target name, it's status, it's IP addresses
(aka Network Portals), and it's LUNS

I would be really surprised if YaST didn't co-exist with such manual
settings, but if you could test that and report back, that would be a
great help :)

Kind Regards,

- Richard


> On 28 May 2014 19:18, Darren Thompson <darrent at akurit.com.au> wrote:
>         Richard
>         
>         
>         That leaves a couple of posibilites:
>         1. I have just got all my configurations wrong at both ends
>         (sadly, highly possible)
>         2. The SLES12 initiator is no longer compatible with the
>         SLES11 target (bad)
>         3. There is a bug that i have discovered somewhere which you
>         are not seeing.
>         
>         
>         I will do some more testing to see which of these is the most
>         likely cause.
>         
>         
>         Can you send through screenshots of the "correct
>         configuration" so i have something to compare against :-)
>         please.
>         
>         
>         Darren
>         
>         
>         On 28 May 2014 18:36, Richard Brown <rbrown at suse.de> wrote:
>                 On Wed, 2014-05-28 at 18:31 +1000, Darren Thompson
>                 wrote:
>                 > Richard
>                 >
>                 >
>                 > That partially explains things at the SLES12B7
>                 target end but why
>                 > can't I connect to a "know good" SLES11 SP3 ISCSI
>                 target?
>                 >
>                 >
>                 > Darren
>                 
>                 For that, I have no clue - I've just tested it, but
>                 telling you that 'it
>                 works here' is probably of little comfort.
>                 
>                 Any clues in /var/log/messages from the target or
>                 initiators?
>                 
>                 - Richard
>                 >
>                 >
>                 > On 28 May 2014 18:15, Richard Brown <rbrown at suse.de>
>                 wrote:
>                 >         On Wed, 2014-05-28 at 13:33 +1000, Darren
>                 Thompson wrote:
>                 >         > Team
>                 >         >
>                 >         >
>                 >         >
>                 >         > The ISCSI "initiator" does not seem to
>                 login/connect to a
>                 >         working
>                 >         > ISCSI Target (I tested both a SLES12B7
>                 trarget server and a
>                 >         "know
>                 >         > good/working" SLES11SP3 server).
>                 >         >
>                 >         >
>                 >         > The ISCSI "discovery" works but I cannot
>                 then connect/login
>                 >         to the
>                 >         > actual targer.
>                 >         >
>                 >         >
>                 >         > Regards
>                 >         > Darren
>                 >         >
>                 _______________________________________________
>                 >         > sleha-beta mailing list
>                 >         > sleha-beta at lists.suse.com
>                 >         >
>                 http://lists.suse.com/mailman/listinfo/sleha-beta
>                 >
>                 >         Hi Darren,
>                 >
>                 >         In SLE 12 we have only the iSCSI LIO Target
>                 and not the ietd
>                 >         iSCSI
>                 >         Target also available in previous versions
>                 >
>                 >         One of the new features of the LIO Target is
>                 that it supports
>                 >         proper LUN
>                 >         mapping - the ability to decide which LUNs
>                 are presented to
>                 >         which
>                 >         Clients/Initiators as which LUN numbers
>                 >
>                 >         This *requires* you to fill in the LUN
>                 mapping section of the
>                 >         iSCSI LIO
>                 >         Target in YaST on your target - it pops up
>                 after you configure
>                 >         a target,
>                 >         but if you're not aware of why it's so
>                 important, I understand
>                 >         you might
>                 >         just click next and leave the Initiator/LUN
>                 mapping table
>                 >         blank (I did
>                 >         the same first time round..)
>                 >
>                 >         Failure to do this, results in the behaviour
>                 you're noticing.
>                 >
>                 >         You'll need the 'initiator name' for each
>                 iSCSI initiator
>                 >         connecting to
>                 >         your target, that can be found
>                 in /etc/iscsi/initiatorname on
>                 >         each of
>                 >         your initiators.
>                 >
>                 >         Hope this helps,
>                 >
>                 >         - Richard
>                 >
>                 >         --
>                 >
>                 -------------------------------------------------------------------
>                 >           Richard Brown, QA Engineer
>                 >           Phone +4991174053-361,  Fax
>                 +4991174053-483
>                 >           SUSE LINUX Products GmbH,  Maxfeldstr. 5,
>                  D-90409 Nuernberg
>                 >           Geschaeftsfuehrer: Jeff Hawn, Jennifer
>                 Guild, Felix
>                 >         Imendoerffer,
>                 >           HRB 16746 (AG Nuernberg)
>                 >
>                 -------------------------------------------------------------------
>                 >
>                 >
>                 >
>                 >
>                 >
>                 >
>                 > --
>                 > 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
>                 > Web: www.akurit.com.au
>                 >
>                 >
>                 
>                 
>                 --
>                 -------------------------------------------------------------------
>                   Richard Brown, QA Engineer
>                   Phone +4991174053-361,  Fax +4991174053-483
>                   SUSE LINUX Products GmbH,  Maxfeldstr. 5,  D-90409
>                 Nuernberg
>                   Geschaeftsfuehrer: Jeff Hawn, Jennifer Guild, Felix
>                 Imendoerffer,
>                   HRB 16746 (AG Nuernberg)
>                 -------------------------------------------------------------------
>                 
>                 
>         
>         
>         
>         
>         -- 
>         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
>         Web: www.akurit.com.au
>         
>         
> 
> 
> 
> 
> -- 
> 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
> Web: www.akurit.com.au
> 
> 


-- 
-------------------------------------------------------------------
  Richard Brown, QA Engineer
  Phone +4991174053-361,  Fax +4991174053-483
  SUSE LINUX Products GmbH,  Maxfeldstr. 5,  D-90409 Nuernberg
  Geschaeftsfuehrer: Jeff Hawn, Jennifer Guild, Felix Imendoerffer,
  HRB 16746 (AG Nuernberg)
-------------------------------------------------------------------




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