Managing Superdome Complexes: A Guide for HP-UX System Administrators

Managing the Overall Complex

Viewing the Current Status of the Complex

Chapter 3 105

Determining if Memory DIMMS Have Failed

Use this procedure from any partition in the complex, to determine if

memory modules have failed.

HP-UX Commands The parstatus command (see parstatus (1)) can be used to determine the

operating status of a cell’s processors.

Step 1. /usr/sbin/parstatus -V -c

cell_number

These options to parstatus will display detailed information about the

cell speciﬁed by cell_number. In addition to status information about

what cell the partition is assigned to, the status of the processors on the

cell board, and other useful information, the status of the cell’s memory

modules is displayed. For example:

/usr/sbin/parstatus -V -c 2

NOTE Any memory listedas failed has failed self-tests or has been deconﬁgured

via the Boot Console Handler service menu’s DIMMDEALLOC

command.

Any DIMM in the same memory rank as a DIMM that has failed (or has

been deallocated) will also be deallocated. DIMM memory modules

operate in (and must be installed/removed in) physical groups known as

memory ranks.

In the following example, memory modules 3, 7,11, and 15 are part of the

same rank. Any one (or more) of the DIMMS might have failed self-tests,

or might have been deallocated by software.

You can perform this task using HP-UX commands or

Partition Manager.

• “HP-UX Commands” on page 105

• “Partition Manager” on page 106