User`s guide

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1: SGI Altix XE Cluster Quick-reference
Powering Off Manually
To power off your cluster system manually, follow these steps:
Caution:
!
If you power off the cluster before you halt the operating system, you can lose data.
1. Shut down the operating system by entering the following command:
# init 0
2. Press the power button on the head node(s) that you want to power off. You may have to hold
the button down for up to 5 seconds. You may power off the nodes in any order.
3. To power off the compute nodes, press the power button (for up to 5 seconds) on the front
panel of each unit (refer to
Figure 1-2 on page 5).
4. To power off optional storage units in the cluster rack, press the power button(s) on their rear
panel to the OFF (
O) position.