The SC6100 uses seven (7) fans per controller, totaling fourteen (14) fans per chassis for system cooling. Cold air enters from the front of the chassis, cooling the SSDs, mid plane, and controllers. The air is directed within each controller to the CPU and DIMMs via air ducts then moves on to cool the PCIe cards, BBU and PSU. Finally, the hot air leaves the chassis from the rear.

Airflow management design system:

• N+1 cooling redundancy allows for minimal impact on thermal performance in the event of a single fan failure.

• An Over Temperature Protection (OTP) mechanism protects the system by throttling CPU and memory if critical temperatures are exceeded.

• The system employs an adaptive cooling strategy to optimize power usage and reduce noise.

Below are the SC6100 cooling specifications:

• The cooling system's thermal solution maintains the components within thermal limits up to 35°C at 900m altitude.
• N+1 cooling redundancy allows for minimal impact on thermal performance in the event of a single fan failure.
• An Over Temperature Protection (OTP) mechanism protects the system by throttling CPU and memory if critical temperatures are exceeded.
• The system will support N+1 cooling redundancy. When any one system fan motor fails, thermal throttle and fan speed boost is allowed to minimize the effects of the failure, the remaining fans should still maintain all the key components within their thermal specification limits. Fan fail case is represented as any one fan motor fail.
• Over temperature protection (OTP) mechanism is enabled to protect the system. If warning sensor threshold is violated, the system will send out the warning information to the user. If critical sensor threshold is violated, CPU and memory will be throttled to lower power consumption to prevent components temperature going up further.
• Provide adaptive cooling strategy to save cooling power and reduce acoustic noise emission.

SC6100 LEDs

Enclosure Power LED

Enclosure Power LED Valid States: OFF, SOLID

• OFF – Enclosure power is off
• SOLID – Enclosure power on, controlled by BMC via CPLD

Enclosure Identifier LED

Enclosure Identifier LED Valid States: OFF, SOLID

• OFF – Normal operation
• SOLID – Enclosure identifier, controlled by BMC via CPLD

Enclosure Fault LED

Enclosure Fault LED Valid States: OFF, SOLID

• OFF – Normal operation with no enclosure faults
• SOLID – Fault conditions exist in enclosure

Controller LEDs

Controller Power LED Valid States: OFF, SOLID

1. OFF – Controller power if off
2. SOLID – Controller power is on, controlled by CPLD

Controller Identifier LED

• OFF – Normal operation
• SOLID – Controller Identifier, controlled by BMC via CPLD

Controller Fault LED Valid States: OFF, SOLID

• OFF – No fault conditions present on local controller
• SOLID – Fault conditions present on the local controller

Fan Tray Fault LED

Fantray fault LED valid states: OFF, SOLID

• OFF – No fault condition present on fan tray
• SOLID – Fault condition present on fan tray

BBU Power LED

BBU Power LED Valid States: OFF, BLINK, SOLID

• OFF – Indicates that the auxiliary power device is NOT in use
• SOLID – The Battery Module has DC input power or is providing power to the system during a backup/destage event

BBU Status LED Valid States: OFF, BLINK, SOLID

• OFF – Output is off or out of tolerance, unable to supply power to volatile cache memory and/or de-staging function.

• BLINK – Indicates the auxiliary power device is charging
• SOLID – Indicates the auxiliary power device is fully charged

BBU Fault LED

BBU Fault LED Valid States: OFF, BLINK, SOLID

• OFF – There have been NO isolated faults or conditions detected by the battery module with the auxiliary power device that can be serviced using service indicators.

• BLINK – The APD has been identified.

• SOLID – There has been a fault condition detected with the auxiliary power device that can be serviced using service indicators. The auxiliary power device is in a condition that permits repair or replacement activity if removable.

PSU LED

The power supply uses a bi-color LED; Amber & Green. Below are table showing the LED states for each power supply operating state and the LED’s wavelength characteristics.

Management Port LED

Each controller features a 1GbE management port with two LEDs. The left LED shows activity, while the right LED displays the link speed.

1GbE management link active state LED: OFF, BLINK

• OFF – No Ethernet link
• BLINK – Have Ethernet link, and with data transmission

1GbE management link speed state LED: OFF, SOLID

• Green SOLID – Ethernet link at 1Gbps
• Orange SOLID – Ethernet link at 100Mbps or 10Mbps
• OFF

10GbE Port LED

Each controller has two 10GbE ports . The left green LED indicates the active state. The right bi-color green/amber LED indicates the link speed state.

10GbE link active state LED: OFF, BLINK

• OFF – No Ethernet link or have link but without data transmission
• BLINK – Have Ethernet link, and with data transmission

10G LAN link speed state LED: OFF, SOLID

• Green SOLID – Ethernet link at 10Gbps
• Amber SOLID – Ethernet link at 1Gbps
• OFF – No Ethernet link

SSD Activity LED

SSD Fault LED Valid States: OFF, SLOW BLINK, FAST BLINK, SOLID

• OFF – Normal operation
• SLOW BLINK – Rebuild
• FAST BLINK – Locate
• SOLID – Drive fault