Internal System Fan Replacement

System fans are field-replaceable units. Should a CPU fan assembly fail, an alarm will be raised by the system. Infoblox 4000 Series appliances require no tools for fan replacement.

Note: The Infoblox 4000 Series appliance reports all system fans, numbered 1 through 6, as individual units, and each fan may be individually replaced as needed. Each fan is numerically labeled inside the chassis.

System fans are hot-swappable; they can be replaced while the system is on. Infoblox recommends that the system be switched off before replacing a fan unit. To replace a fan assembly, do the following:

1. Perform a full system shutdown.
2. Unplug all power cables from the system.

Note: Steps #1 and #2 are optional.

3. Extend or remove the Infoblox appliance from the rack.

4. Using the bundled star screwdriver, unscrew the latch (on the top rear of the unit) and gently pull latch to remove the top panel, as shown in Figure 17.

Figure 17 Gently pull latch to remove top panel for Infoblox 4000 Series appliances


 

5. Slide the top panel off and visually inspect the fans to determine which unit has stopped spinning and must be replaced.

6. Figure 18 shows a four-fan-module configuration. The system fans can be removed from their installation base and replaced. A pair of small handles reside on the top of each fan module, which you grasp with fingertips when pulling the unit out of the system. Pay attention to unit alignment and placement before removing from the system.

Figure 18 System fan removal; pull gently on top of the failed fan unit. Each unit is numbered.

7. Place the new fan in the system. The fans can be correctly installed in only one direction, as shown in Figure 19.

Figure 19 Fan blades point towards rear of chassis for Infoblox 4000 Series
 

8. Replace the top lid of the system and replace it in the rack before restoring power.