Installing an HDD Module in a QFX3100 Director Device

QFX3100 Director devices have two 2-terabyte (TB) hard disk drive (HDD) module slots on the front panel. HDD modules are field-replaceable units (FRUs).

Note: When you install an HDD module in a QFX3100 Director device that is powered on, the HDD module is automatically synchronized with the second HDD module in the QFX3100 Director device, and the other QFX3100 Director device in the QFX3100 Director group.

• Ensure that you understand how to prevent electrostatic discharge (ESD) damage. See Prevention of Electrostatic Discharge Damage.

• ESD grounding strap

1. Attach the ESD grounding strap to your bare wrist, and connect the strap to a site ESD point.
2. Taking care not to touch HDD module components, pins, leads, or solder connections, remove the HDD module from its bag.
3. If the Director device is powered on, at least one HDD module must be installed at all times. You should only perform this step when an HDD module in the other HDD slot is installed and operational.

   If an HDD module in the HDD module slot needs to be removed, remove the HDD module. See Removing an HDD Module from a QFX3100 Director Device

4. Ensure that the HDD module is properly aligned with the HDD module slot. The HDD module faceplate should be aligned so the screws are aligned with the top of the HDD module slot.
5. Insert the HDD module into the HDD module slot, and gently push the module all the way into the slot until the module is seated flush in the HDD module slot.

   Caution: If backpressure prevents the HDD module from seating flush in the HDD module slot, remove the HDD module from the slot and retry the procedure, taking care to ensure that the HDD module is properly aligned with the HDD module slot.

6. Tighten both screws on the HDD module, using your fingers.

Figure 1: Installing an HDD Module in a QFX3100 Director Device