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Server software and configuration utilities 75
Redundant ROM support
The server enables you to upgrade or configure the ROM safely with redundant
ROM support. The server has a 4-MB ROM that acts as two, separate 2-MB
ROMs. In the standard implementation, one side of the ROM contains the current
ROM program version, while the other side of the ROM contains a backup
version.
NOTE: The server ships with the same version programmed on each
side of the ROM.
Safety and security benefits
When you flash the system ROM, ROMPaq writes over the backup ROM and
saves the current ROM as a backup, enabling you to switch easily to the alternate
ROM version if the new ROM becomes corrupted for any reason. This feature
protects the existing ROM version, even if you experience a power failure while
flashing the ROM.
Access to redundant ROM settings
To access the redundant ROM through RBSU:
1. Access RBSU by pressing the F9 key during powerup when the prompt is
displayed in the upper right corner of the screen.
2. Select Advanced Options.
3. Select Redundant ROM Selection.
4. Select the ROM version.
5. Press the Enter key.
6. Press the Esc key to exit the current menu or press the F10 key to exit
RBSU. The server restarts automatically.
To access the redundant ROM manually:
1. Power down the server ("Powering down the server" on page 24
).
2. Remove the access panel ("Removing the access panel" on page 26
).
3. Set positions 1, 5, and 6 of the system maintenance switch to On.