Silicon Graphics TP9100, Installation Instructions And User Manual

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Appendix A
A. TPMWatch Event Monitor and Logger
TPMWatch is a support program designed to poll RAID subsystems and report their
health to an output file. The file can then be used by a user-supplied program or shell
script to provide notification in the event a component fails or goes offline. The program
works by issuing commands to the controller to report status information for all LUNS,
disk drives, and enclosure components (fans, power supplies, batteries, and so on).
To minimize performance impact, provide the greatest amount of flexibility to
incorporate TPMWatch in external routines, the program is designed with the following
considerations:
• U ser-defined polling period (in seconds).
• Generates only 11 I/Os.
• User supplies the status file name upon invocation.
• User supplies the optional history file name upon invocation.
• The status file is pure ASCII text, so the result can easily be interpreted by a shell
script.