If your XIV Storage System is connected to a Brocade Fabric, be aware of the following:
For Brocade Fabric OS versions 6.2.0, 6.2.0a, and 6.2.0b, the default fillword is "ARBF/ARBF" (mode 1)
For Brocade Fabric OS versions 6.2.0c to 6.4.x, the default fillword changed to "IDLE/IDLE" (mode 0).
--> The "IDLE/IDLE" fillword setting is not supported with 8GbpsXIV storage system ports, and might cause loss of connectivity.
The XIV storage system supports any fillword except "IDLE/IDLE
Follow these guidelines:
When using Brocade Fabric OS versions 6.2.0, 6.2.0a, or 6.2.0b, keep the default fillword: "ARBF/ARBF" (mode 1)
When using Brocade Fabric OS versions 6.2.0c to 6.3.0d, change the default fillword to: "ARBF/ARBF" (mode 1)
When using Brocade Fabric OS versions 6.3.1 to 6.4.x, Brocade recommends using the following fillword: "if ARBF/ARBF fails use IDLE/ARBF" (mode 3)
The above guidelines only apply when the XIV 8Gbps FC ports are connected to an 8Gbps Brocade switch. Keep in mind tha changing the fillword is considered a disruptive action.
Use the following procedure to change the fillword, if necessary:
Check the current fillword configuration by using the portcfgshow command:
IBM_2499_192:FID128:admin> portcfgshow 1/0
Area Number: 0
Speed Level: AUTO(HW)
Fill Word: 3(A-A then SW I-A)
AL_PA Offset 13: OFF
Change the fillword for a specific port by using the portcfgfillword command. For example to set the fillword mode 3 on blade 1 and port 0, issue:
portCfgFillWord 1/0 3