For example, when a kernel memory board with memory mirror mode enabled is deleted or moved, kernel memory is moved from the kernel memory board to another system board. Kernel memory is moved normally even if memory mirror mode is disabled for the move-destination system board. However, this operation results in lowered reliability of memory on the new kernel memory board.

You must properly plan and decide the setting of memory mirror mode by fully considering the requirements for the domain configuration and operations.

2.5.5Capacity on Demand (COD)

DR works the same on COD boards as on other system boards, but standard COD restrictions, such as licensing, still apply.

For detailed information on COD boards, refer to SPARC Enterprise

M4000/M5000/M8000/M9000 Servers Administration Guide.

2.5.6XSCF Failover

An XSCF failover might prevent a DR operation from completing. To check, log in to the active XSCF, check the status of the system board and, if necessary, repeat the DR operation.

2.5.7Kernel Memory Board Deletion

If an XSCF failure or failover occurs during the Copy-rename phase of a deleteboard(8) or moveboard(8) operation, the Solaris OS may panic and display the following message:

Irrecoverable FMEM error error_code

If you see this message, log in to the XSCF again to check status. You may have to reboot the Solaris OS and, on the XSCF, check system board status, specify the kernel memory board, and repeat the DR operation.

Chapter 2 What You Must Know Before Using DR 2-29