40 SPARC Enterprise T5440 Server Administration Guide • July 2009
Operating the Solaris OS With LogicalDomains
This section describes the changes in behavior in using the Solaris OS that occur once
a configuration created by the Logical Domains Manager is instantiated; that is, after
domaining is enabled.
Note – Any discussion about whether domaining is enabled pertains only to
UltraSPARC T1–based platforms. Otherwise, domaining is always enabled.
■“OpenBoot Firmware Not Available After Solaris OS Has Started if Domaining Is
Enabled” on page 40
■“Power-Cycle a Server” on page 40
■“Result of an OpenBoot power-off Command” on page 41
■“Result of Solaris OS Breaks” on page 41
■“Results From Halting or Rebooting the Control Domain” on page 41
■“Additional Documentation” on page 43

OpenBoot Firmware Not Available After Solaris

OS Has Started if Domaining Is Enabled

If domaining is enabled, the OpenBoot firmware is not available after the Solaris OS
has started, because it is removed from memory.
To reachthe ok prompt from the Solaris OS, you must halt the domain. You can use
the Solaris OS halt command to halt the domain.

Power-Cycle a Server

Whenever performing any maintenance on a system running LDoms software that
requires power-cycling the server,you must save your current logical domain
configurations to the SC first.