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New Contributor
Posts: 3
Registered: ‎05-14-2010

AIX HBA appears as target not initiator

We're new to Brocade SAN (just converted from Cisco) and we have multiple AIX hosts with Emulex HBAs.  All is well except that one HBA is appearing as a target.  The other HBA on the same host appears as an initiator as it should.  Both HBAs on each of the other 7 hosts appear as initiators.  I can't find any differences in configuration or firmware.  Any ideas?  Also, is it possible to override the "target" status?  We have DCFM but not the Enterprise Edition.

Super Contributor
Posts: 635
Registered: ‎04-12-2010

Re: AIX HBA appears as target not initiator

Did you have checked with the the switch CLI the nameserver entry if it is really a Target?

You can check it with "nsshow -t". Please run "help nsshow" on the CLI and check if the option -t is correct. I have currently no access to the manual.

This will give you the correct status.

Sometimes DCFM produces funny things.

Regards,

Andreas

New Contributor
Posts: 3
Registered: ‎05-14-2010

Re: AIX HBA appears as target not initiator

nsshow says

Device Type: Physical Target

The other AIX adapters show

Device Type: Physical Unknown(initiator/target)

Is there a switch port setting that could affect this?

I guess we could try reloading the adapter firmware.  Maybe a bit flipped.

We forced the adaptor to be an initiator in DCFM but the switch FOS still sees it as a target.

Frequent Contributor
Posts: 104
Registered: ‎07-27-2009

Re: AIX HBA appears as target not initiator

Check with the AIX guys if the correct firmware and driver is loaded on the HBA as well as the settings on that particular HBA.

Be aware that an N-Port may behave as an Initiator, Target or both depending on the capabilities of the port. The determination of this is being done during PRLI on the FCP level. It has nothing to do with the fibre-channel layer 0,1,2 and 3 protocol itself. Remember that this is a SCSI thing.

Also check if the correct ODM's are loaded especially in multipath environments.

Hope this helps.

Regards,

E

New Contributor
Posts: 3
Registered: ‎05-14-2010

Re: AIX HBA appears as target not initiator

One server, two adapters on separate fabrics.  First adapter appears as Target, second as Unknown(initiator/target).

Same firmware level 1.90A4 (which is downlevel), same driver (since it's one LPAR), same (writable) settings, generic AIX ODMs.

Frequent Contributor
Posts: 104
Registered: ‎07-27-2009

Re: AIX HBA appears as target not initiator

There is too little information to determine why this happens. It's best to open up a supportcall with IBM to verify the HBA settings. This is not a switchport issue.

Cheers

E

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