Overview of DR

DR software is part of the Solaris operating environment. With the DR software you can dynamically reconfigure system boards in order to safely remove them or install them into a system. You perform DR operations while the Solaris operating environment is running, and with minimum disruption to user processes that are running in the dynamic system domain (referred to simply as a domain in this document).

You can use DR to do the following:

• Minimize the interruption of system applications while installing or removing a board.

• Disable a failing device by removing it from the domain, before the failure can crash the operating system.

• Display the operational status of boards in a domain.

• Reconfigure a domain while Solaris continues to run in the domain.