Voltage And Temperature Warnings; Resolving Voltage And Temperature Warnings - R/Evolution 2000 Series Troubleshooting Manual

Hide thumbs Also See for 2000 Series:

Table of Contents

CH A P T E R

Voltage and Temperature Warnings

The storage system provides voltage and temperature warnings, which are generally

input or environmental conditions. Voltage warnings can occur if the input voltage

is too low or if a FRU is receiving too little or too much power from the power-and-

cooling module. Temperature warnings are generally the result of a fan failure, a

FRU being removed from an enclosure for a lengthy time period, or a high ambient

temperature around an enclosure.

This chapter describes the steps to take to resolve voltage and temperature warnings

and provides information about the power supply, cooling fan, temperature, and

voltage sensor locations and alarm conditions. Topics covered in this chapter

include:

"Resolving Voltage and Temperature Warnings" on page 73

■

"Sensor Locations" on page 74

■

To resolve voltage and temperature warnings:

1. Check that all of the fans are working by making sure each power-and-cooling

module's DC Voltage/Fan Fault/Service Required LED is off or by using the

RAIDar Status Summary page (see "Determining Storage System Status and

Verifying Faults" on page 37).

2. Make sure that all modules are fully seated in their slots and that their latches are

locked.

3. Make sure that no slots are left open for more than two minutes.

If you need to replace a module, leave the old module in place until you have the

replacement or use a blank module to fill the slot. Leaving a slot open negatively

affects the airflow and can cause the enclosure to overheat.

4. Try replacing each power-and-cooling module one at a time.

5. Replace the controller modules, one at a time.

Table of Contents