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12: Maintenance and Upgrade Procedures
Preparing the System for Maintenance or Upgrade
To prepare the system for maintenance, follow these steps:
1.
If you are logged on to the system, log out.
At your system console, switch to the L1 mode by entering the following
command:
$> Ctrl+T
From the L1 prompt (L1>), power off the system with the following command:
L1> power down
2. Locate the PDU(s) in the rear of the rack and turn off the circuit breaker switches on
each PDU.
Returning the System to Operation
When you finish installing or removing components, return the system to operation as
follows:
1.
Turn each of the circuit breaker switches to the “on” position.
2. At your system console, enter the following command:
L1> power up
3. Verify that the LEDs turn on and illuminate green and that your controllers display
that the system is powered on for each segment of the procedure, which indicates
that the power-on procedure is proceeding properly.
If your system does not boot correctly, see “Troubleshooting Chart” in Chapter 13, for
troubleshooting procedures.
Summary of Contents for SGI Altix 3700 Bx2
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