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Reset a multinode system
If a reset is performed on all nodes in the partition (a partition is created) reboot,
you can various behaviors.
First, to reset a multinode system, use one of the following methods:
Use the Reset button on the top of the Light Path Diagnostic panel at any
node in this partition.
Use the reset options in the Power/Restart control of the RSA II Web
interface, which is installed in any of the x3950 M2 systems. See Figure 4-30
on page 233.
Use the reset option in the scalability management menu of the RSA II Web
interface. See "Reset a partition:" on page 231.
Perform a reset in the operating system.
The following behaviors occur if an automatic unexpected reboot (a software or
hardware error occurred) occurred without your intervention:
All nodes in a partition are affected.
The event log of the operating system, RSA II and the Baseboard
Management Controller might contain logged events.
The x3950 M2 embedded error correction features try to recover a hardware
error and boot up the partition
The operating system attempts to reboot.
Power off a Multinode system
Powering off a started multinode system affects all nodes in a partition.
To power off a running Multinode system, use any of the following methods:
Use the power button on the front of the Light Path Diagnostic panel at any of
the merged nodes in this partition. See Figure 4-28 on page 230
Use the reset options in the Power/Restart control of the RSA II Web
interface, which is installed in any of the x3950 M2 systems. See Figure 4-30
on page 233.
Use the reset option in the scalability management menu of the RSA II Web
interface. See "Power off a partition" on page 231.
Perform a shutdown in the operating system.
A shutdown is generated automatically in any form of abnormal fatal conditions,
such running at temperatures that are too high, specification overages, hardware
malfunctions, or defects, and not recoverable errors.
236
Planning, Installing, and Managing the IBM System x3950 M2
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