Failure to Connect the Storage System to an AIX-Based Application Server for the First Time

Symptom

When connecting the storage system to an AIX-based application server for the first time, set the port rate of the Fibre Channel front-end port to be consistent with that of the Fibre Channel HBA. However, on the DeviceManager, Running Status of the Fibre Channel front-end port remains Link down and the initiator for the application server cannot be detected on the DeviceManager.

Alarm Information

None

Possible Causes

1. The health status of the storage system and the application server is normal.
2. The link between the storage system and the application server is normal.

Conclusion: The special mechanism of AIX causes the failure to connect the storage system to the AIX-based application server for the first time.

Procedure

1. Run the lsdev -Cc adapter|grep fcs command on the application server to view the HBA information.

   -bash-3.00# lsdev -Cc adapter | grep fcs 
   fcs0    Aailable  05-00 4Gb FC PCI Express Adapter (df1000fe) 
   fcs1    Aailable  05-00 4Gb FC PCI Express Adapter (df1000fe) 
   fcs2    Aailable  06-00 4Gb FC PCI Express Adapter (df1000fe) 
   fcs3    Aailable  06-00 4Gb FC PCI Express Adapter (df1000fe) 
   -bash-3.00#     

2. Run the lscfg -vpl fcsx command (where x indicates the HBA ID) to view the World Wide Port Names (WWPNs) of the HBAs (in bold type).

   -bash-3.00# lscfg -vpl fcs1 
    fcs1                                   P2-I2/Q1  FC Adapter 
    
                   Part Number...............LP9802-F2 
                   Serial Number.............BG50l99256 
                   Network Address...........l00000000C9447DA7 
                   ROS Level and ID..........02E0l99l 
                   Device Specific.(Z0)......2003806D 
                   Device Specific.(Z1)......00000000 
                   Device Specific.(Z2)......00000000 
                   Device Specific.(Z3)......03000909 
                   Device Specific.(Z4)......FF60l4l6 
                   Device Specific.(Z5)......02E01991 
                   Device Specific.(Z6)......06631991 
                   Device Specific.(Z7)......07631991 
                   Device Specific.(Z8)......20000000C9447DA7 
                   Device Specific.(Z9)......HS1.92A1 
                   Device Specific.(ZA)......H1D1.92A1 
                   Device Specific.(ZB)......H2D1.92A1 
                   Device Specific.(YL)......P2-I2/Q1 
    
     
    
    PLATFORM SPECIFIC 
    
    Name:      fibre-channel 
    Node: fibre-channel@c 
    Physical Location: P2-I2/Q1 
   -bash-3.00#     

3. Check whether the HBA is connected to the storage system based on the WWPN.

   If the WWPN is consistent with that on the HBA label, the HBA is connected to the storage system.

4. Run the rmdev -dl fcsx -R command (where x indicates 0 or 1) to delete the HBA connected to the storage system.

   Run the lsdev -Cc adapter|grep fcs command to view the HBA information and confirm that the HBA is successfully deleted.

5. Run the cfgmgr command to scan for an HBA again.
6. Run the lsdev -Cc adapter|grep fcs command to view that the HBA connected to the storage system is displayed again.

   After the HBA is detected, you can view and add the initiator for the application server on the DeviceManager.

Suggestion and Summary

None

Related Information

None