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2-2 Maintenance and administration programs: overview
Hardware platform
Power outages
Changing the NAC system time
553-4011-510 Standard 1.0 November 1994
The NAC runs on the SNN hardware platform. The hardware is composed
of :
a single-module system
a new MVME167-34 CPU card
a new Mass Storage Unit (MSU) containing a 1.2 GByte hard disk and
a 600 MByte cassette tape drive
one to five MVME332XT serial I/O cards
Console lockup
When a power outage occurs, there is a possibility of a maintenance
console lock-up. Follow this procedure to unlock the terminal:
1
Press {F3} on the terminal keyboard to access the terminal set-up
directory screen.
2
Select "Clear Comm" and press {ENTER} to clear the communication
port.
3
Press {F3} to exit the set-up directory.
4
Press {BREAK}, followed by {ENTER}. Repeat this step until the login
prompt appears.
Note: Physically locking the maintenance console keyboard prevents
the NAC from rebooting. It also prevents access to the NAC
Maintenance and Administration programs. This is not recommended.
Follow this procedure to reset the NAC system time for situations such as
an adjustment in Daylight Savings Time:
1
Display the NAC Maintenance and Administration main menu (system
running mode).
This menu is described in the "Maintenance and administration
programs: system running" chapter.
Press s to select the Shutdown the System option.
2
A prompt appears to confirm that the system is to be shut down.
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