Actions, Replacement guidelines and precautions – HP NonStop G-Series User Manual

Page 163

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Enabled State The initial state of the power supply component at the time of discovery.

Values

Device State The state of the component as known to the operating system on the server.

Values

Actions

Replace

Launches an interactive action to guide you through replacement of a power supply CRU. This
action is valid for IOMF2 and most PMF enclosures. It is not valid for S7000 PMF or IOMF CRUs
(in which the power supply is not a customer-replaceable unit). The steps include:

Note: In Telco systems, instead of having power supply units in slots 31 and 32, there are

actually 4 TICs (in positions A1, A2, B1, and B2). If the system is not wired as
documented in the NonStop S-Series Central Office Server Installation and Service Guide,
OSM cannot properly identify the TIC that needs to be replaced. If an OSM alarm appears
on a power supply in either slot 31 or 32, consult your wiring diagram and the NonStop
S-Series Central Office Server Installation and Service Guide
before replacing a power
supply component.

Preparing to replace the power supply CRU -- The action directs you to the

Replacement

Guidelines and Precautions

help topic for guidelines and precautionary steps to observe before

and during the CRU replacement.

1.

After clicking Yes to confirm that you are ready to proceed with the replacement action:

OSM checks the peer power supply to verify that it is functional and can take over
during the replacement.

If the peer power supply is functional, OSM disables the battery associated with the
power supply CRU to be replaced.

If these tasks complete successfully, a dialog box informs you that the power supply is
ready to be replaced.

2.

After replacing the power supply CRU, click Continue to complete the action. OSM verifies
the status of the new power supply. If it is functional, OSM enables the battery that was
disabled earlier in the procedure.

3.

If at any point during the procedure OSM finds problems that prevent the action from completing (or
make continuing unadvisable), a dialog box reports the problems that must be addressed before the
CRU replacement can be safely completed.

Replacement Guidelines and Precautions

Preparing to Replace the Power Supply

Perform these preparatory steps before you attempt to replace a power supply:

Review these important notes and cautions:

1.

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