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Chapter 5 Hardware Functional Descriptions 5-15
5.2.8.5 LEDs
The Netra CP3260 blade server supports three LEDs compliant with ATCA
specification:
■ Green LED – Healthy status
■ Amber LED – Fault condition
■ Blue LED – Indicates that blade server is safe for removal when on and hot
swapping in progress when blinking.
The LEDs are controlled by H8.
5.2.8.6 Power Control
The BMR-H8S is able to control (enable/disable) power rails to the payload.
5.2.8.7 System Monitor (ADM1026) and Thresholds
The Analog Devices ADM1026 is used for system monitoring functions. The
ADM1026 is interfaced with the IPMC, and the IPMC firmware is responsible for
monitoring these sensors.
Voltage Monitoring
The ADM1026 measures most of the blade server voltages. The ADM1026 has one
temperature sensor embedded in the device itself and supports two remote sensing
channels that require external diodes for temperature sensing. These two remote
sensors are used for measuring the CPU thermal diode temperature.
The ADM1026 measures the voltages listed in
TABLE 5-1. The ADM1206 and H8
firmware monitors these voltages. When the voltages are within regulations, the
blade server functions with no warnings. When any voltage goes out of regulation
beyond approximately
± 7%, a Critical Warning is generated and presented to
the shelf manager.