Installing the auxiliary write cache

Follow these step-by-step instructions to install the auxiliary write cache.

1. Ensure that both the storage I/O adapter and AWC adapter are installed in the same partition and in the same enclosure.
2. Update to the latest adapter microcode from the code download web site, and to the required levels of both the AIX® version and the AIX driver package for your specific adapters. See AIX software requirements for the required code levels, and also refer to the installation information for the adapter.
3. Power on the system or partition and verify the function of adapters and disk arrays. See Viewing the disk array configuration. The output displayed will be similar to the following screen examples.

   +--------------------------------------------------------------------------------+  
   |                                  COMMAND STATUS                                |   
   |                                                                                |   
   | Command: OK            stdout: yes           stderr: no                        |   
   |                                                                                |   
   | Before command completion, additional instructions can appear below.           |   
   |                                                                                |   
   | ------------------------------------------------------------------------       |   
   | Name      Resource  State       Description              Size                  |   
   | ------------------------------------------------------------------------       |   
   | sissas2   FFFFFFFF  Available   PCIe x1 Auxiliary Cache Adapter                |   
   |  sissas1  FFFFFFFF  AWC linked  Redundant cache protected by sissas2           |   
   |                                                                                |   
   |                                                                                |   
   |                                                                                |   
   |                                                                                |   
   |                                                                                |   
   |                                                                                |   
   |                                                                                |   
   |                                                                                |   
   | F1=Help             F2=Refresh          F3=Cancel           F6=Command         |   
   | F8=Image            F9=Shell            F10=Exit            /=Find             |   
   | n=Find Next                                                                    |   
   +--------------------------------------------------------------------------------+   

   +--------------------------------------------------------------------------------+  
   |                                 COMMAND STATUS                                 |  
   |                                                                                |  
   | Command: OK            stdout: yes           stderr: no                        |  
   |                                                                                |  
   | Before command completion, additional instructions might appear below.         |  
   |                                                                                |  
   | ------------------------------------------------------------------------       |  
   | Name      Resource  State       Description              Size                  |  
   | ------------------------------------------------------------------------       |  
   | sissas1   FFFFFFFF  Primary     PCI-X266 Planar 3 Gb SAS RAID Adapter          |  
   |  sissas2  FFFFFFFF  AWC linked  Redundant cache protection for sissas1         |  
   |                                                                                |  
   | pdisk2    00044000  Active      Array Candidate         69.7GB Zeroed          |  
   | pdisk4    00044100  Active      Array Candidate         69.7GB Zeroed          |  
   | pdisk3    00044200  Active      Array Candidate         69.7GB Zeroed          |  
   | pdisk5    00044300  Active      Array Candidate         69.7GB Zeroed          |  
   | pdisk7    00044400  Active      Array Candidate        139.6GB                 |  
   | pdisk0    00044500  Active      Array Candidate        139.6GB                 |  
   | pdisk1    00044600  Active      Array Candidate        139.6GB                 |  
   |                                                                                |  
   |                                                                                |  
   |                                                                                |  
   | F1=Help             F2=Refresh          F3=Cancel           F6=Command         |  
   | F8=Image            F9=Shell            F10=Exit            /=Find             |  
   | n=Find Next                                                                    |  
   +--------------------------------------------------------------------------------+ 

4. Verify that both adapters indicate they are Available and AWC Linked to the other adapter, and that all arrays indicate Optimal.