CAUTION: RAID controller modules can be removed and installed without turning off the array. Itis recommended that you do not remove the RAID controller module while data is beingtransferred. Replacing or installing a RAID controller module that is connected to a host servercauses it to lose communication with the array and may require a reboot of the host server.Removing a RAID Controller Module BlankCAUTION: To maintain proper system cooling, you must install a RAID controller module blank inthe empty slot.1. Turn off the array and host server.2. Disconnect all the power cables connected to the array.3. To remove the RAID controller module blank, press down on the release latch and pull the blankaway from the array.4. Install RAID controller modules in slot 0 and 1.5. Connect all the power cables to the array.6. Turn on the array and the host server.Figure 14. Removing and Installing a RAID Controller Module Blank1. release latch 2. RAID controller module blankInstalling a RAID Controller Module Blank1. Align the blank with the RAID controller module bay.2. Insert the blank into the chassis until it clicks into place.Removing a RAID Controller ModuleCAUTION: Many repairs may only be done by a certified service technician. You must onlyperform troubleshooting and simple repairs as authorized in your product documentation, or asdirected by the online or telephone service and support team. Damage due to servicing that isnot authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthat came with the product.23