User`s guide

007-4522-003 75
Chapter 5
5. Troubleshooting
The 2 Gb TP9100 storage system includes a processor and associated monitoring and
control logic that allows it to diagnose problems within the storage system’s power,
cooling, and drive systems.
SES (SCSI enclosure services) communications are used between the storage system and
the RAID controllers. Status information on power, cooling, and thermal conditions is
communicated to the controllers and is displayed in the management software interface.
The enclosure services processor is housed in the ESI/ops panel module. The sensors for
power, cooling, and thermal conditions are housed within the power supply/cooling
modules. Each module in the storage system is monitored independently.
Note: For instructions on opening the rear door of the rack, see “Opening and Closing
the Rear Rack Door” on page 31.
This chapter contains the following sections:
• “RAID Guidelines” on page 76
• “Solving Initial Startup Problems” on page 76
• “Using Storage System LEDs for Troubleshooting” on page 78
• “Using the Alarm for Troubleshooting” on page 91
• “Solving Storage System Temperature Issues” on page 92
• “Using Test Mode” on page 93
• “Care and Cleaning of Optical Cables” on page 94