[vios] Replace the Physical Adapter of the SEA.

Replace the Physical Adapter of the SEA.

Technote (FAQ)

Question

How can I replace the physical adapter of my SEA?

Cause

Customer needs to replace a physical ethernet adapter of the SEA..

Answer

Customer wants to replace the NIC with a different F/C but they use the same driver.

NOTE: This may not work if the replacement NIC uses a different device driver. You may need to remove the SEA and recreate it with the new NIC and new device driver.

1. Determine which ethernet device is the SEA:

• a. $ lsdev -type adapter
  ent8 Available Shared Ethernet Adapter

2. Make sure the SEA is in BACKUP state:

• $ oem_setup_env
  # entstat -d ent8 |grep State —> must be in BACKUP
  If State is PRIMARY, you must force failover to BACKUP state:

   
   

  • a. # chdev -l ent8 -a ha_mode=standby
     

3. Determine which is the physical adapter of the SEA:

• a. # entstat -d ent8 |grep -i Real

   
   

  • Real Side Statistics:
    Real Adapter: ent0
     

4. Determine the physical location code of the ethernet adapter:

• a. # lscfg -vl ent0

   
   

  • ent0 U787B.001.DNW3CA2-P1-C1-T1 10/100/1000 Mbps Ethernet PCI-X Adapter II (1410ff01)

  b. C1 = slot 1

5. Determine which interface has IP address configured:

• a. # netstat -in

   
   

  • Customer has IP address on SEA interface en8.
    If no IP addresses are assigned to the SEA interface en8, skip steps 7 and 8.
     

6. Determine if SEA interface is using the default gateway:

• a. # netstat -rn.

7. If IP address is assigned to the SEA interface, bring the interface down:

• a. # ifconfig en8 down detach
   

8. Temporarily put the interface in a defined state:

• a. # rmdev -l en8

9. Temporarily put the SEA device in a defined state:

• a. # rmdev -l ent8 —> SEA defined
   

10. Remove the physical ethernet adapter of the SEA;

• a. # rmdev -dl ent0 —> real adapter for ent8
   

11. Use hot plug manager to replace the adapter.

12. Run configuration manager:

• a. # cfgmgr

13. Check that the new physical adapter and the SEA adapter are available:

• # lsdev -Cc adapter |grep ent

14. Check that the en interface is available:

• a. # ifconfig -a
  If not available;
  b. # mkdev -l en8 (or ifconfig en8 up)

15. Check that default gateway is assigned to the previously assigned interface (step 5):

• a. # netstat -rn
  b. If no default gateway:

   
   

  • 1. # mkdev -l inet0

16. Check that en8 (or interface in step 5) can ping default gateway:

• a. # ping <IP of default gateway>

17. Failover back to PRIMARY:

• a. # chdev -l ent8 -a ha_mode=auto