JetStor 780JHD Master Expander Module Maintenance Guide

This article provides instructions for safely inspecting and replacing the Master Expander Module in JetStor 780JHD storage systems. Critical procedures include:

Download: Component Maintenance Manual

Click here to view the complete Master Expander Module Instructions (PDF).

Essential Safety Procedures:

  • WARNING: Modules are not hot-swappable - power off system before removal
  • Step-by-step HDD removal sequence to access expander module
  • Proper handling of connector pins to prevent damage

Key Steps Highlighted:

  • Thumbscrew removal/reinstallation protocol
  • Pin integrity verification process
  • Module reinsertion and locking mechanism operation

Technical Support

For hardware maintenance assistance:
📧 support@jetstor.com
🎫 Open maintenance request