Versions 2.0 and 3.0 of Dynamic Reconfiguration (DR) let you logically attach and detach system boards to and from the operating system without causing machine downtime. DR is used in conjunction with hot swap, which is the process of physically removing or inserting a system board. You can use DR to add a new system board, reinstall a repaired system board, or modify the domain configuration on the Sun Enterprise 10000 system.
If a system board is being used by a domain, you must detach it before you can power it off and remove it. After a new or upgraded system board is inserted and powered on, you may attach it to the domain.
You can execute DR operations from the system service processor (SSP) by using the Automated DR (ADR) commands: addboard(1M), moveboard(1M), deleteboard(1M), and showusage(1M).
For more information about DR 2.0, see "Introduction to the DR 2.0 Model". For more information about using DR 2,0, see "DR 2.0 Procedures".