HP AA HP Netserver 4000 Reference Guide

HP NetServer AA
Hewlett-Packard Company
2-12
AA 4000 Boot Options
When powering on the IOPs and watching the boot process, the
Windows NT Boot Menu will appear. The boot menus may look
slightly different on each IOP because Windows NT was installed
twice on IOP1 and there are legacy Windows NT boot options. The
first three entries in the Windows NT boot menu are created during
the installation of the AA 4000 software. The boot options are:
• Online Marathon Mode - This option is the default and the
standard operating mode for the IOP. This option boots
Windows NT and activates the AA 4000 software. The IOP will
then attempt to join the other IOP and be prepared for a CE boot.
• Offline Marathon Mode - This is the best option for
maintenance. Selecting this menu option will boot Windows NT
and some of the AA 4000 software services. SCSI devices will
not be redirected and are available locally. The IOP is not active
in the AA 4000 configuration.
NOTE
Both IOPs must be active for the Endurance 4000 to be fully
fault tolerant.
• Marathon Maintenance Mode – Contrary to its name, this is
not the best choice for performing maintenance. This choice
should be reserved for emergency scenarios only. This option
boots a copy of the original Windows NT installed prior to any
AA 4000 software being installed. In other words, it is not the
same \WINNT directory and system files typically used during
normal boot.
The best use of this option is when there may be damage to the
regularly used NT system files. This option offers a “backdoor”
into accessing the \WINNT directory since while this copy of
Windows NT is active, it is using a different system directory.
Typically the system directory is called \MTCMAINT.