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007-5483-001
System Procedures
If your cluster uses the Scali Manage administrative software (release 5.6.x) or later, you
can power on/off specific nodes or the entire system using the graphical user interface.
Select Management Menu -> Power Mgt ->Power Off. The compute nodes can be halted
from the Scali Manage GUI by selecting the nodes and choosing “halt system” and
“power down” from the System Management menu. A command line interface is also
available to power-on/off or check status.
Note:
Refer to the Scali Manage User’s Guide for more information. You must have root
privileges to perform these types of tasks.
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.
4. To power off the graphics nodes, press the power button (for up to 5 seconds) on the
front panel of each unit.
5. To power off optional storage units in the cluster rack, press the power button(s) on
their rear panel to the OFF (O) position.
!
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