In rare cases, if the server or sever module experiences a serious problem that results in a panic, when the server is rebooted, a number of CPUs might not start, even though the CPUs are not faulty.
Example of the type of error displayed:
rebooting... Resetting... ERROR: 63 CPUs in MD did not start
Workaround: Log into Oracle ILOM on the SP and then power cycle by typing:
-> stop /SYS Are you sure you want to stop /SYS (y/n)? y Stopping /SYS -> start /SYS Are you sure you want to start /SYS (y/n) ? y Starting /SYS