Sun Storage 2540-M2 Array
 
Sun Storage 6780 Array
 
Sun Storage 6180 Array
 
Sun Storage 2530-M2 Array
 
Sun Storage 6540 Array
 
Sun Storage 6580 Array
 
Sun Storage 6140 Array
 

PLA-Support>Sun Systems>DISK>Arrays>SN-DK: FLX300_65xx_6780
 

In this Document

Goal

Solution

References

Applies to:

Goal

 How to determine which host attached to the disk array initiated/requested the volume failover.

Solution

Additional information is collected in the Major Event Log (MEL) starting with controller firmware 07.60.xx.xx and higher.  Beginning with firmware 07.60.xx.xx it is very simple to determine the specific host that caused/requested the Automatic Volume Transfer (AVT) (failover from one controller to the alternate controller on the disk array) by looking at the raw data in the MEL of the AVT MEL event.  To perform this:

1. Collect a support data bundle from the disk array.  (<Document 1002514.1> Collecting Sun Storage Common Array Manager Support Data for Arrays)
2. After extracting the "zipped" support data bundle open the "majorEventLog.txt" file in a text editor.
3. In the text editor you will need to search the MEL for event type 400E - Automatic volume transfer started. 
   Example below:
   Date/Time: Tue Apr 22 14:20:32 HST 2014
   Sequence number: 5002366
   Event type: 400E
   Event category: Notification
   Priority: Informational
   Description: Automatic volume transfer started
   Event specific codes: 0/0/0
   Component type: Controller
   Component location: Tray.85.Controller.B
   Logged by: Controller in slot B
   
   Raw data:
   
   4d 45 4c 48 03 00 00 00 7e 54 4c 00 00 00 00 00
   0e 40 48 00 50 07 57 53 00 00 00 00 00 00 00 00
   62 00 00 00 04 00 00 00 22 00 00 00 22 00 00 00
   08 00 00 00 55 00 00 00 02 00 00 00 01 00 00 00
   0a 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00
   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
   01 00 00 00 00 00 01 01 0c 00 00 00 08 00 80 01
   10 00 00 00 c9 72 40 13 -> WWPN of HBA initiating failover
   
   
    
4. Using the above 16 alpha-numeric digit World Wide Port Number (WWPN); you can find which host requested the failover by looking in the "Mappings" section of the storageArrayProfile.txt file of the support data bundle.
5. Open the "storageArrayProfile.txt" file in a text editor.
6. In the text editor you will need to search for the appropriate WWPN. 
   For this example search for "10000000c9724013":

References

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