If an attempt to use the ldm command to manage domain configurations fails because of an error communicating with the SP, perform the following recovery step that applies to your platform:
SPARC T3, SPARC T4, SPARC T5, SPARC M5, and SPARC M6 systems. Restart the ldmd service.
primary# svcadm enable ldmd
If restarting the ldmd daemon fails to restore communications, restart the SP.