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PowerPath for UNIX Installation and Administration Guide
PowerPath Administration on Solaris
Dynamic Reconfiguration
The Solaris Dynamic Reconfiguration (DR) feature allows you to add
or remove an HBA from a Solaris system while the system continues
running. You can logically attach and detach system boards from the
operating system without halting and rebooting. For example, with
DR you can detach a board from the operating system, physically
remove and service the board, and then re-insert the board and
re-attach it to the operating system—without halting the operating
system or terminating any user application.
PowerPath supports DR. The following procedures describe how to
use DR to add and remove HBAs in a PowerPath environment.
As you perform these procedures, have available the Sun Dynamic
Reconfiguration documentation for your platform.
If you have a custom PowerPath configuration that you have not yet saved,
run powermt save before completing the procedures in this section, to save
your configuration changes. Run powermt load after completing these
procedures, to restore your configuration.
Adding an HBA to a
PowerPath
Configuration
To use DR to add an HBA to a Solaris system in a PowerPath
configuration, follow these steps:
1. Add the new HBA to the system, following the instructions in the
Sun Dynamic Reconfiguration documentation.
2. Configure the new HBA. Enter:
powermt config