Maintaining QFX10008 Cooling System
Both QFX10008 and QFX10016 switchess have two independent, field-replaceable fan trays, each with an associated fan tray controller.
Removing a QFX10008 Fan Tray
Before you remove a fan tray:
Ensure you understand how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.
Ensure that you have the following parts and tools available to remove a fan tray from a QFX10008 chassis:
Electrostatic discharge (ESD) grounding strap
Replacement fan tray
A Phillips (+) screwdriver, number 1 or 2 (optional), for the captive screws
The QFX10008 chassis has two independent, field-replaceable fan trays. Each fan tray is a hot-removable and hot-insertable field-replaceable unit (FRU); you can remove and replace the fan tray while the switch is running without turning off power to the switch or disrupting switching functions.
Do not remove the fan tray unless you have a replacement fan tray available.
Each fan tray is installed vertically on the rear, or FRU-side, of the chassis.
The fan tray can be removed and replaced while the switch is operating. However, the fan tray must be replaced within 3 minutes of removing the fan tray to prevent overheating of the chassis.
To remove a QFX10000 fan tray (see Figure 2 for the QFX10008 chassis:
- Attach the electrostatic discharge (ESD) grounding strap
to your bare wrist, and connect the strap to the ESD point on the
rear left side of the chassis. See Figure 1.Figure 1: ESD Point on QFX10008 Chassis Rear
1—ESD point
- Grasp the top and bottom handles and pull the fan tray
out about 3 in. (7.6 cm). See Figure 2.Figure 2: Removing a Fan Tray from a QFX10008 Chassis
Installing a QFX10008 Fan Tray
Before you begin to install a fan tray:
Ensure you understand how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.
Ensure that you have the following parts and tools available to install a fan tray in a QFX10008 chassis:
Electrostatic discharge (ESD) grounding strap
A Phillips (+) screwdriver, number 1 or 2 (optional), for the captive screws
A replacement fan tray
The fan tray can be removed and replaced while the switch is operating. However, the fan tray must be replaced within three minutes of removing the fan tray to prevent the chassis from overheating.
The QFX10008 chassis has two independent, field-replaceable fan trays. Each fan tray is a hot-removable and hot-insertable field-replaceable unit (FRU); you can remove and replace the fan tray while the switch is running without turning off power to the switch or disrupting switching functions.
To install a QFX10008 fan tray, see Figure 4:
- Attach the ESD grounding strap to your bare wrist, and
connect the strap to the ESD point on the rear left side of the chassis.
See Figure 3.Figure 3: ESD Point for QFX10008 Chassis Rear1—
ESD point
Removing a QFX10008 Fan Tray Controller
For each of the two fan trays, there is a fan tray controller. Each controller is a hot-removable and hot-insertable field-replaceable unit (FRU); you can remove and replace one fan tray controller while the switch is running without turning off power to the switch or disrupting switching functions. See Figure 5.
Do not remove the fan tray controller unless you have a replacement controller available.
In order to access a fan tray controller, you must first remove the fan tray. With the fan tray removed, the fan tray controller is installed horizontally above the switch interface boards (SIBs) at the top of the chassis.
Before you remove a fan tray controller:
Ensure you understand how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.
Ensure that you have the following parts and tools available to remove a fan tray controller from a QFX10008 chassis:
Electrostatic discharge (ESD) grounding strap
An electrostatic bag or an antistatic mat
Replacement fan tray controller
A Phillips (+) screwdriver, number 1, for the captive screws
To remove the fan tray controller:
- Grasp the fan tray controller and pull it straight out
of the slot. See Figure 6.Figure 6: Removing a QFX10008 Fan Tray Controller
See Also
Installing a QFX10008 Fan Tray Controller
For each of the two fan trays, there is a fan tray controller. Each controller is a hot-removable and hot-insertable field-replaceable unit (FRU); you can remove and replace one fan tray controller while the switch is running without turning off power to the switch or disrupting switching functions. See Figure 7.
Do not remove the fan tray controller unless you have a replacement controller available.
In order to access a fan tray controller, you must first remove the associated fan tray. With the fan tray removed, the fan tray controller is installed horizontally above the Switch Interface Boards (SIBs) at the top of the chassis.
Before you replace a fan tray controller:
Ensure you understand how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.
You have removed the associated fan tray and fan tray controller. See Removing a QFX10008 Fan Tray and Removing a QFX10008 Fan Tray Controller.
Ensure that you have the following parts and tools available to install a fan tray controller into a QFX10008 chassis:
Electrostatic discharge (ESD) grounding strap
Replacement fan tray controller
A Phillips (+) screwdriver, number 1 for the captive screws
To install a fan tray controller:
- Carefully slide the fan tray controller into the fan tray
controller slot until it is flush with the mounting holes. See Figure 8.Figure 8: Replacing a QFX10008 Fan Tray Controller
