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108 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide • March 2003
Sun Proprietary/Confidential: Internal Use Only
Virtualization Engine Diagnostics
The virtualization engine monitors the following components:
■ Virtualization engine router
■ Sun StorEdge T3+ array
■ Cabling between the router and the storage
Service Request Numbers (SRNs)
SRNs are used to inform the user of storage subsystem activities.
Service and Diagnostic Codes
The virtualization engine’s service and diagnostic codes inform the user of
subsystem activities. The codes are presented as a light-emitting diode (LED)
readout. See Appendix
A for the table of codes and related appropriate actions to
take. In some cases, you might not be able to receive SRNs because of
communication errors. If this occurs, you must read the virtualization engine LEDs
to determine the problem.
Retrieving Service Information
You can retrieve service information from one of two sources:
■ CLI Interface
■ Error Log Analysis Commands
Both of these sources are described in the following sections.
CLI Interface
The Serial Loop Intraconnect (SLIC) daemon, which runs on the Storage Service
Processor, communicates with the virtualization engine. The SLIC daemon
periodically polls the virtualization engine for all subsystem errors and topology
changes. It then passes this information, in the form of a SRN, to the Error Log file.