Infortrend SentinelRAID 170 320ML/sec SCSI-to-SCSI RAID Controller manual Audible Alarm

Chapter 3: Controller Monitoring

3.3. Audible Alarm

Different controller environmental and operational parameters (i.e., temperature, etc.) have been assigned a range of values within which they can fluctuate. If either the upper or lower thresholds are exceeded, an audible alarm will automatically be triggered. The alarm will also be triggered when an active component of the SR 170 controller fails. If the SR 170 controller manager is onsite and is alerted by the alarm, the manager needs to read the message on the LCD screen or on the PC terminal to determine what has triggered the alarm. After determining what has occurred, the SR 170 controller manager must take appropriate actions to rectify the problem.

WARNING:

Whenever an alarm is triggered, you must determine the problem. If the audible alarm is ignored or not taken seriously and the problem is not rectified, permanent damage to the controller can result.

3.3.1 Default Threshold Values

Table 3-2shows the default threshold values for the SR controller. If any of these values are surpassed the alarm will sound:

Parameter	Upper Threshold
+3.3V	+3.6V
+5V	+5.5V
+12V	+13.2V
CPU Temperature	90ºC
Board Temperature	90ºC

Table 3-2:Default Threshold Values

Lower Threshold

+2.9V

+4.5V

+10.8V

0ºC

0ºC

The thresholds in Table 3-2are the default threshold values and can be changed. For instructions on how to change these values, please refer to the Generic Operation Manual that came with your system.

3.4. I2C Port (Enclosure Monitoring)

The I2C interface is designed for Infortrend Simple Enclosure Management Service (ISEMS). FW supports monitoring of remote enclosure devices (power, fan rotation speed, temperature, etc.) through SAF-TE, S.E.S, or I2C interface. Via the I2C interface, the controller collects signals from remote sensors and notifies the system administrator if the signals exceed any critical thresholds.

Audible Alarm 3-3