122 BigIron RX Installation Guide53-1001811-01Managing the cooling system5low – The system sets the fan speed to low.med – The system sets the fan speed to medium.med-high – The system sets the fan speed to medium-high.Monitoring the cooling systemYou can monitor the following aspects of the BigIron RX Series cooling system:• The temperature of the fan control modules• The status and speed of the fans• The temperature warnings sent to the system log and that generate an SNMP trapDisplaying fan tray status and speedThe CLI provides two commands that allow you to display the status and speed of the four-speedfans in the BigIron RX Series chassis. To display this information, you can enter the followingcommand at any level of the CLI:Syntax: show chassisFor information about all output generated by the show chassis command,refer to “Displayingchassis status and temperature readings” on page 113.Displaying temperature warningsIf the temperature of a module exceeds the high temperature threshold for any of the fan speeds,the system sends a warning message to the system log and an SNMP trap. (For more informationabout the low and high temperature thresholds, refer to “Changing temperature thresholds formodules and fan speeds” on page 117.) This section describes how to view the system log. If youhave configured the BigIron RX Series system to use a Syslog server or SNMP trap receiver, refer tothe documentation for the server or receiver.TABLE 22 Fan status and speed fieldsThis field... Displays...Status The status can be one of the following:• OK – The fan is functioning properly and is keeping the temperature of each module withinan acceptable temperature range.• Failed – The fan is not functioning properly or the fan control module cannot control thefan.Speed The speed can be one of the following:• LOW – The fan is functioning at 50 percent of capacity• MEDIUM – The fan is functioning at 75 percent of capacity• MEDIUM-HIGH – The fan is functioning at 90 percent of capacity• HIGH – The fan is functioning at 100 percent of capacityBigIron RX# show chassis...--- FANS ---Right Fan Tray: Fan 5: Status = OK, Speed = LOW (50%) (RPM 3333)Right Fan Tray: Fan 6: Status = OK, Speed = LOW (50%) (RPM 3488)...
