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Sun Datacenter InfiniBand Switch 36 HTML Document Collection for Firmware Version 2.1 |
USB Management Connector and Pins
InfiniBand QSFP Connector and Pins
Understanding InfiniBand Cabling
Preparing to Install the Switch
Suggested Tools for Installation
Antistatic Precautions for Installation
Verify Shipping Carton Contents
Assemble the Optical Fiber InfiniBand Cables
Install the Switch in the Rack
Verifying the InfiniBand Fabric
Network Management Troubleshooting Guidelines
Understanding Routing Through the Switch
Understanding Administrative Commands
Administering the I4 Switch Chip
Controlling the I4 Switch Chip
Administering the Subnet Manager
Controlling the Subnet Manager
Configuring Secure Fabric Management
Administering the InfiniBand Fabric
Monitoring the InfiniBand Fabric
Controlling the InfiniBand Fabric
Understanding Oracle ILOM on the Switch
Understanding Oracle ILOM Targets
Administering Oracle ILOM (CLI)
Accessing Oracle ILOM From the CLI
Switching Between the Oracle ILOM Shell and the Linux Shell
Monitoring Oracle ILOM Targets (CLI)
Controlling Oracle ILOM Targets (CLI)
Upgrading the Switch Firmware Through Oracle ILOM (CLI)
Administering Oracle ILOM (Web)
Access Oracle ILOM From the Web Interface
Monitoring Oracle ILOM Targets (Web)
Controlling Oracle ILOM Targets (Web)
Upgrade the Switch Firmware (Web)
Accessing the Rear Panel Diagram
Accessing Status Pane Information
Monitoring Parameters and Status
Administering Oracle ILOM (SNMP)
Monitoring Oracle ILOM Targets (SNMP)
Controlling Oracle ILOM Targets (SNMP)
Display the Sensor States (IPMI)
Display the Sensor Information (IPMI)
Display the System Event Log (IPMI)
Display FRU ID Information (IPMI)
Display Switch Status LED States (IPMI)
Disable the Locator LED (IPMI)
Understanding Oracle ILOM Commands
Check NET MGT Port Status LEDs
Check Power Supply Status LEDs
Display Faulty Components (fault_state)
Display Faulty Components (/SP/faultmgmt)
Identify Faults in the Oracle ILOM Event Log
Determining the Alarm State of a Component or System
Display the General Alarm State of Systems and Components
Oracle ILOM Target Alarm States
Display Oracle ILOM Sensor Status
Determine Oracle ILOM Sensor Target Types
Evaluating a Voltage Sensor Alarm
Evaluating a Temperature Sensor Alarm
Evaluating a Speed Sensor Alarm
Evaluating a State Sensor Alarm
Evaluating a Presence Sensor Alarm
Presence Sensor Alarm Conditions
Access the Oracle ILOM CLI (NET MGT Port)
Enter the Restricted Linux Shell
Exit the Restricted Linux Shell
Understanding Service Procedures
Antistatic Precautions for Service
Determine If a Power Supply Is Faulty
Inspecting the InfiniBand Cables
Determine If the Battery Is Faulty
Remove the Switch From the Rack
Understanding Hardware Commands
Linux Shells for Hardware Commands
Understanding InfiniBand Commands
Linux Shells for InfiniBand Commands
Understanding the SUN-DCS-IB-MIB MIB OIDs
Understanding the SUN-FABRIC-MIB MIB OIDs
Understanding the SUN-HW-TRAP-MIB MIB OIDs
Understanding the SUN-ILOM-CONTROL-MIB MIB OIDs
Understanding the SUN-PLATFORM-MIB MIB OIDs
The speed of the fans is varied by the management controller. The management controller uses an algorithm that considers the cooling air temperature, the number of fans spinning, and the temperatures within the chassis, to set the speed of the fans.
Note - The management controller sets all fans of identical type to identical speeds, and their speeds should not vary more than 2000 RPMs from each other. If one fan's speed varies more than 2000 RPMs than the average of the remaining identical fans, that fan will fail soon and should be replaced.
When a fan speed is too high, it is an indication of the condition of the fan, which if gone unchecked can be detrimental to the operation of the switch. A too high fan speed can be caused by:
Internal failure – To regulate their speed, the fans use hall-effect sensors in an internal feedback loop. If the sensor fails, the feedback loop opens, and the motor overspeeds uncontrollably.
Other fan failure – The algorithm used by the management controller compensates for a fan failure by increasing the speed of the remaining functional fans.
Fan obstruction – If the fan intake is blocked, load on the fan is reduced, and the fan overspeeds.
Temperatures too high – If any component temperatures are too high, the fans spin faster.
Supply voltage too high – If the voltage at sensor target /SYS/MB/V_12V is too high, the fans spin faster.
If a fan overspeeds for an extended time, it will fail. Consequently, insufficient cooling air will be provided and the switch will overheat.
When a fan speed is too low, it also is an indication of the condition of the fan, which directly affects the operation of the gateway. A too-low fan speed can be caused by:
Coil failure – The fan motor uses alternating electromagnetic fields to spin the fan impeller. Depending upon the fan motor design, if the coil that creates a magnetic field fails, the fan might spin much slower, or not at all.
Controller failure – The controller alternates the electromagnet fields to spin the fan impeller. If the controller fails, the fan might not spin at all.
Bearing failure – The fan impeller is balanced on a bearing around which it spins. The bearing is lubricated with an oil. If the bearing fails or the lubricant degrades, the fan speed is reduced greatly.
Supply voltage too low – If the voltage at sensor target /SYS/MB/V_12V is too low, the fans spin slower.
If the fans speed is too low, insufficient cooling air will be provided and the gateway will overheat.
When fan speeds are out of range, the suggested action is to replace any fan that is not operating properly. See Servicing Fans. If new fans do not resolve the problem, then replace the switch.