Use this MAP to resolve the following problem: Multiple controllers not capable of similar functions or controlling same set of devices (SRN nnnn - 9074)
This error relates to adapters connected in a Multi Initiator and High Availability configuration. To obtain the reason or description for this failure, you must find the formatted error information in the AIX® error log. This should also contain information about the attached adapter (Remote Adapter fields).
Display the hardware error log. View the hardware error log as follows:
Find the REASON FOR FAILURE and information for the attached adapter (remote adapter) shown in the error log, and perform the action listed for the reason in the following table:
| Reason for Failure | Description | Action | Adapter on which to perform the action |
|---|---|---|---|
| Secondary does not support RAID level being used by primary. | Secondary adapter detected that the primary has a RAID array with a RAID level that the secondary does not support. | Customer needs to upgrade the type of secondary adapter or change the RAID level of the array on the primary to a level that is supported by the secondary. | Physically change the type of adapter that logged the error. Change RAID level on primary adapter (remote adapter indicated in the error log). |
| Secondary does not support disk function being used by primary. | Secondary adapter detected a device function that it does not support. | Customer might need to upgrade the adapter microcode or upgrade the type of secondary adapter. | Adapter that logged the error. |
| Secondary is unable to find devices found by the primary. | Secondary adapter cannot discover all the devices that the primary has. | Verify the connections to the devices from
the adapter logging the error. View the disk array configuration screens to determine the SAS port with the problem. |
Adapter that logged the error. |
| Secondary found devices not found by the primary. | Secondary adapter has discovered more devices than the primary. After this error is logged, an automatic failover will occur. | Verify the connections to the devices from the
remote adapter as indicated in the error log. View the disk array configuration screens to determine the SAS port with the problem. |
Remote adapter indicated in the error log. |
| Secondary port not connected to the same numbered port on primary. | SAS connections from the adapter to the devices are incorrect. Common disk expansion drawers must be attached to the same numbered SAS port on both adapters. | Verify connections and re-cable SAS connections as necessary. | Either adapter. |
| Primary lost contact with disks accessible by secondary. | Link failure from primary adapter to devices. An automatic failover will occur. | Verify cable connections from the adapter which logged the error. Possible disk expansion drawer failure. | Adapter that logged the error. |
| Other | Not currently defined. | Contact your hardware service provider. |
When the problem is resolved, see the removal and replacement procedures topic for the system unit on which you are working and do the "Verifying the repair" procedure.