[ASK] - AIX Fibre Channel behavior Post: 303032046

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Operating Systems AIX [ASK] - AIX Fibre Channel behavior Post 303032046 by Phat on Sunday 10th of March 2019 06:37:24 AM

03-10-2019

Registered User

Hi Bakunin,

I found this:
IBM How to Initiate Login/Logout Operation for virtual Fibre Channel Client Adapters in HMC - United States

Seem that by default, each virtual FC adapter is created but only 1 WWPN is active, and the other is used for LPM.

Code:

yyy@HMCxxx:~> lsnportlogin -m xxx --filter "lpar_names=abc"
lpar_name=abc,lpar_id=17,profile_name=abc,slot_num=112,wwpn=c050760671b10018,wwpn_status=1,logged_in=client,wwpn_status_reason=null
lpar_name=abc,lpar_id=17,profile_name=abc,slot_num=112,wwpn=c050760671b10019,wwpn_status=0,logged_in=none,wwpn_status_reason=null
lpar_name=abc,lpar_id=17,profile_name=abc,slot_num=212,wwpn=c050760671b1001a,wwpn_status=1,logged_in=client,wwpn_status_reason=null
lpar_name=abc,lpar_id=17,profile_name=abc,slot_num=212,wwpn=c050760671b1001b,wwpn_status=0,logged_in=none,wwpn_status_reason=null
lpar_name=abc,lpar_id=17,profile_name=abc,slot_num=312,wwpn=c050760671b1001c,wwpn_status=1,logged_in=client,wwpn_status_reason=null
lpar_name=abc,lpar_id=17,profile_name=abc,slot_num=312,wwpn=c050760671b1001d,wwpn_status=0,logged_in=none,wwpn_status_reason=null
lpar_name=abc,lpar_id=17,profile_name=abc,slot_num=412,wwpn=c050760671b1001e,wwpn_status=1,logged_in=client,wwpn_status_reason=null
lpar_name=abc,lpar_id=17,profile_name=abc,slot_num=412,wwpn=c050760671b1001f,wwpn_status=0,logged_in=none,wwpn_status_reason=null

0: is not logged.
1: is logged or active
2: unknown.

Even I try to login the port ( on test AIX), I still see the same WWPN, not more WWPN ( the number of FC card is not increased, still 4)

Code:

xxx@HMCxxxx:~> lsnportlogin -m xxxx --filter "lpar_names=abc"
lpar_name=abc,lpar_id=17,profile_name=abc,slot_num=112,wwpn=c050760671b10018,wwpn_status=1,logged_in=client,wwpn_status_reason=null
lpar_name=abc,lpar_id=17,profile_name=abc,slot_num=112,wwpn=c050760671b10019,wwpn_status=1,logged_in=vios,wwpn_status_reason=null
lpar_name=abc,lpar_id=17,profile_name=abc,slot_num=212,wwpn=c050760671b1001a,wwpn_status=1,logged_in=client,wwpn_status_reason=null
lpar_name=abc,lpar_id=17,profile_name=abc,slot_num=212,wwpn=c050760671b1001b,wwpn_status=1,logged_in=vios,wwpn_status_reason=null
lpar_name=abc,lpar_id=17,profile_name=abc,slot_num=312,wwpn=c050760671b1001c,wwpn_status=1,logged_in=client,wwpn_status_reason=null
lpar_name=abc,lpar_id=17,profile_name=abc,slot_num=312,wwpn=c050760671b1001d,wwpn_status=1,logged_in=vios,wwpn_status_reason=null
lpar_name=abc,lpar_id=17,profile_name=abc,slot_num=412,wwpn=c050760671b1001e,wwpn_status=1,logged_in=client,wwpn_status_reason=null
lpar_name=abc,lpar_id=17,profile_name=abc,slot_num=412,wwpn=c050760671b1001f,wwpn_status=1,logged_in=vios,wwpn_status_reason=null


[root@xxx] / > lsdev -Cc adapter | grep fcs
fcs0 Available 12-T1 Virtual Fibre Channel Client Adapter
fcs1 Available 12-T1 Virtual Fibre Channel Client Adapter
fcs2 Available 12-T1 Virtual Fibre Channel Client Adapter
fcs3 Available 12-T1 Virtual Fibre Channel Client Adapter

[root@xxx] / > lscfg -vl fcs0
  fcs0             U9117.MMD.06528F7-V17-C112-T1  Virtual Fibre Channel Client Adapter

        Network Address.............C050760671B10018
        ROS Level and ID............
        Device Specific.(Z0)........
        Device Specific.(Z1)........
        Device Specific.(Z2)........
        Device Specific.(Z3)........
        Device Specific.(Z4)........
        Device Specific.(Z5)........
        Device Specific.(Z6)........
        Device Specific.(Z7)........
        Device Specific.(Z8)........C050760671B10018
        Device Specific.(Z9)........
        Hardware Location Code......U9117.MMD.06528F7-V17-C112-T1

--- Post updated at 10:29 AM ---

I guess this is the behavior of power machine, as only 1 WWPN is active and recognized on the OS side.

If we login the inactive ports, the zoning on SAN switch will see the second WWPN according to the article above.

I will verify with the storage guy tomorrow about this and update.

--- Post updated at 10:32 AM ---

1 question, LPM is used to migrate the AIX from one power host to another power host? Like migrate VM on VMware?

--- Post updated at 10:37 AM ---

Quote:

Yes, i would suspect the zoning too. You should investigate with the storage guy, especially if he has zoned both of the WWPNs on both of the virtual adapters. They often think that - one cable one WWPN - one of them is enough.

Yes, I'm not so clear after all but this is still in the checklist.

Phat

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