321 Studios GHDX2-2430S-24F4D manual Loosen the retention screws that secure the controller’s

Chapter 5: Subsystem Maintenance

Step 2. If working on the dual-controller Galaxy HDX2, the workload should have been taken over by the surviving RAID controller in the event of single controller failure.

Step 3. Remove the BBU module if one has been installed. Loosen the BBU module’s retention screw and then simply retrieve it from the chassis.

Figure 5-1: Removing the BBU Module

Step 4. Disconnect all cables that are connected to the controller module you wish to replace. These include the FC cables connecting to the host or cascaded enclosures the SAS cable to the expansion enclosure, an Ethernet cable to the management port, and any cables connected to the RS-232C audio jacks.

Step 5. Loosen the retention screws that secure the controller’s

ejection levers to the enclosure chassis.

Figure 5-2: Removing the Retention Screws

Step 6. Gently press both of the ejector levers in a downward motion at the same time to disconnect the controller from the back-end PCB. When the ejector levers are at their lowest

Subsystem Maintenance 5-5