The boot sequence has changed on these servers. In addition to being able to boot from traditional OpenBoot-accessible boot drives, the servers can now boot from an iSCSI device over IPoIB using an OpenBoot-accessible boot pool that is located on the eUSB devices on the CMIOUs in the PDomain. For more information, see iSCSI Devices Using IPoIB.
For a description of the boot sequence changes and instructions on how you can manage the boot pool by using the bootadm boot-pool, refer to Booting and Shutting Down Oracle Solaris 11.3 Systems.
You can configure booting parameters from the OS or at the OpenBoot prompt. You can also affect the boot behavior through Oracle ILOM. These are the primary OpenBoot variables and default values that determine how the host boots (see Display OpenBoot Variables):
diag-switch? false
auto-boot? true
boot-device disk net
A new OpenBoot variable has been added (os-root-device). This variable defines devices and root file systems for root pools. This is a non-volatile variable that you can view using the printenv command at the OpenBoot prompt or using the eeprom command at the Oracle Solaris prompt.