Preparing The System For Maintenance Or Upgrade; Returning The System To Operation - Silicon Graphics UV 2000 System User's Manual

6: Add or Replace Procedures

Preparing the System for Maintenance or Upgrade

Returning the System to Operation

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To prepare the system for maintenance, follow these steps:
1. If you are logged on to the system, log out. Follow standard procedures for gracefully
halting the operating system.
2. Go to the section "Powering-On and Off From the SGI Management Center Interface" in
Chapter 1 if you are not familiar with power down procedures.
3. After the system is powered off, locate the power distribution unit(s) (PDUs) in the front of
the rack and turn off the circuit breaker switches on each PDU.
Note: Powering the system off is not a requirement when replacing a RAID 1 system disk.
Addition of a non-RAID disk can be accomplished while the system is powered on, but the
disk is not automatically recognized by system software.
When you finish installing or removing components, return the system to operation as follows:
1. Turn each of the PDU circuit breaker switches to the "on" position.
2. Power up the system. If you are not familiar with the proper power down procedure, review
the section "Powering-On and Off From the SGI Management Center Interface" in
Chapter 1.
3. Verify that the LEDs on the system power supplies and system blades turn on and illuminate
green which indicates that the power-on procedure is proceeding properly.
If your system does not boot correctly, see "Troubleshooting Chart" in Chapter 7, for
troubleshooting procedures.
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