Dynamic Reconfiguration User's Guide 2.5.1

5.1.2 DR detach

If DR detach fails, follow these instructions.

1. Please find out the cause of the error and try to resolve it by reading instructions described in Chapter 6, "Messages and DR Error Conditions on Solaris 8 OS" and Chapter 7, "Messages and DR Error Conditions on Solaris 9 OS and Solaris 10 OS".
2. Once the error is resolved, the user can retry DR detach.

It is not recommended to re-attach the system board after DR detach fails due to the following reason.

If a CPU is detached with the message "drmach: DR: OS detach cpu-unit(#.#)", it will never come back online until the system board is detached and re-attached.