Dot Hill Systems II 200 FC service manual Troubleshooting Your Array, Sensor Locations

CHAPTER 8

Troubleshooting Your Array

This chapter covers the following maintenance and troubleshooting topics:

■“Sensor Locations” on page 8-1

■“Silencing Audible Alarms” on page 8-5

■“RAID LUNs Not Visible to the Host” on page 8-7

■“Controller Failover” on page 8-7

■“Recovering From Fatal Drive Failure” on page 8-8

■“Using the Reset Push Button” on page 8-10

■“Troubleshooting Flowcharts” on page 8-11

■“Power Supply and Fan Module” on page 8-11

■“Drive LEDs” on page 8-13

■“Front-Panel LEDs” on page 8-16

■“I/O Controller Module” on page 8-21

For more troubleshooting tips, refer to the SANnet II 200 FC, SATA, and SATA SE Array Release Notes. See “Related Documentation” on page -xviiifor more information. Product documentation can also be found at this Dot Hill web site:

http://www.dothill.com/manuals.

8.1Sensor Locations

Monitoring conditions at different points within the array enables you to avoid problems before they occur. Cooling element, temperature, voltage, and power sensors are located at key points in the enclosure. The SCSI Enclosure Services (SES) processor monitors the status of these sensors. Refer to the SANnet II Family RAID Firmware User’s Guide for details.

The following tables describe each element and its sensors.

8-1