SPARC: Dynamic Reconfiguration for Hot-Pluggable System Boards

This functionality was changed in the Solaris 7 5/99 software release.

Dynamic reconfiguration (DR) enables a server with a faulty system board to continue running while that board is logically detached, physically removed, physically replaced, then logically attached, eliminating downtime and the time lost in rebooting. Once a board has been detached the server can continue running even if a replacement board is not yet available. In servers that support domains, DR can be used to reassign a good board from one domain to another. On selected servers, CPU/memory boards can also be logically attached and detached.

The system administrator typically executes the DR commands, while the service provider does the actual board swapping. Only certain SPARC servers support this version of DR. See your hardware manufacturer's documentation for information about whether your server supports DR.