Host initiators didn't login backup to single FC port after upgrade due to faulty SFP

Last updated
Save as PDF
Share
1. Share
2. Tweet
3. Share

Views:: 22

Visibility:: Public

Votes:: 0

Category:: ontap-9

Specialty:: san

Last Updated:

Applies to

Ontap 9
FC
AIX host

Issue

Post Ontap upgrade host initiators logged in back to all ports on all nodes except for one port 3b.
Login events are seen on all FC ports that these initiators are logged in.
But the initiators managed to stay logged in on all FC ports except for one port 3b.
Lot of login and missing login initiator events are seen for this affected port 3b.

[?] Mon Jun 24 06:09:03 -0400 [nodeA: fct_tpd_work_thread_0: scsitarget.fct.portLogin:notice]: Login at target FC port: '3b' by initiator port: 'c0:xx:xx:xx:xx:xx:xx:04' address 0xfxxxfd. The target virtual port is: 'NetApp FC Target Port (LPe16000) SVMFC01:nodeA_FC_3B'. [?] Mon Jun 24 06:10:08 -0400 [nodeA: fct_tpd_work_thread_0: scsitarget.fct.portLogin:notice]: Login at target FC port: '3b' by initiator port: 'c0:xx:xx:xx:xx:xx:xx:04' address 0xcxxx1. The target virtual port is: 'NetApp FC Target Port (LPe16000) SVMFC01:nodeA_FC_3B'. [?] Mon Jun 24 06:17:27 -0400 [nodeA: fct_tpd_work_thread_0: scsitarget.fct.portLogin:notice]: Login at target FC port: '3b' by initiator port: 'c0:xx:xx:xx:xx:xx:xx:04' address 0xcxxx1. The target virtual port is: 'NetApp FC Target Port (LPe16000) SVMFC01:nodeA_FC_3B'. [?] Mon Jun 24 06:19:10 -0400 [nodeA: fct_tpd_work_thread_0: scsitarget.fct.portLogin:notice]: Login at target FC port: '3b' by initiator port: 'c0:xx:xx:xx:xx:xx:xx:04' address 0xcxxx2. The target virtual port is: 'NetApp FC Target Port (LPe16000) SVMFC01:nodeA_FC_3B'. [?] Mon Jun 24 06:33:33 -0400 [nodeA: bcomd: san.initiator.login:notice]: Missing login for initiator "c0:xx:xx:xx:xx:xx:xx:04", Vserver "SVMFC01", portset "2A_3B", has been logged on. [?] Mon Jun 24 13:18:33 -0400 [nodeA: bcomd: san.initiator.login.missing:notice]: Initiator "c0:xx:xx:xx:xx:xx:xx:04" is not logged in to any LIFs on this node for Vserver "SVMFC01", portset "2A_3B". Access to LUNs might be disrupted if a failover occurs. [?] Mon Jun 24 13:26:01 -0400 [nodeA: fct_tpd_work_thread_0: scsitarget.fct.portLogin:notice]: Login at target FC port: '3b' by initiator port: 'c0:xx:xx:xx:xx:xx:xx:04' address 0xcxxx1. The target virtual port is: 'NetApp FC Target Port (LPe16000) SVMFC01:nodeA_FC_3B'. [?] Mon Jun 24 13:33:33 -0400 [nodeA: bcomd: san.initiator.login:notice]: Missing login for initiator "c0:xx:xx:xx:xx:xx:xx:04", Vserver "SVMFC01", portset "2A_3B", has been logged on.

The last event that is seen for the affected port 3b is missing login initiators.
Fc port Rx & Tx are in optimal range

Node nodeA Adapter 3b Operational Status online Extended Status ADAPTER UP Received Optical Power 577.3 (uWatts) SFP Transmitted Optical Power 604.7 (uWatts)

Port is up and is in connected state

slot 3: Fibre Channel Target Host Adapter 3b (Emulex LPe16000 (LPe16004) rev. 13, <ONLINE>) Board Name: 1xcxcx1 Serial Number: Fxcxcxc9 Firmware rev: 12.8.433.0 Host Port Addr: 0c0e00 FC Nodename: 5x:xx:xx:xx:xx:xx:xx:x1 (5xcxcxcxcxcxcxc1) FC Portname: 5x:xx:xx:xx:xx:xx:xx:x1 (5xcxcxcxcxcxcxc1) Connection: PTP, Fabric Switch Port: SWITCH:14 SFP Vendor Name: EMULEX SFP Vendor P/N: AFxcxcxcxX SFP Vendor Rev: SFP Serial No.: ACxcxcxcx61 SFP Connector: LC SFP Capabilities: 4, 8, 16 Gbit/Sec

Rescan of HBA and reboot of host is done which didn't help.
Switch ports are healthy which are connected to host and storage.
Multiple hosts initiators are connected to this storage using switch and all these initiators are not logged in to this affected port 3b.
Same initiators are logged into other working FC ports.