Dell PowerVault 211S Dell PowerVault 2xxS Storage Systems SCSI Backplane Board - Page 11

9. Remove both enclosure services modules or enclosure services expander modules. 10. Using a ball-head Allen driver, tighten the two screws in the left enclosure services module bay and then tighten two screws in the right enclosure services module bay. Install the Dual-Bus Split Backplane Module on the Replacement SCSI Backplane Board Install the replacement dual-bus split backplane module onto the replacement backplane board. The dual-bus split backplane module is keyed, but care must be taken not to bend the contact pins. Install the Component Mounting Bracket To install the component mounting bracket, perform the following steps: 1. Carefully insert the component mounting bracket into the back of the storage system. 2. Slowly slide the bracket all the way into the housing. Some up-down and side-to-side motion may be necessary to slide the bracket in. Ensure that the center guide tab at the bottom of the housing goes into the slot on the center support of the component mounting bracket. 3. Insert the two screws and, using a Phillips-head screwdriver, tighten the screws to secure the component mounting bracket to the chassis. Install the Enclosure Services Modules or Enclosure Services Expander Modules NOTICE: In a nonredundant system, install the enclosure services module or enclosure services expander module and the terminator blank in the same module bays from which they were removed. NOTICE: In a redundant system, install the enclosure services modules or enclosure services expander modules in the same module bays from which they were removed. NOTE: A redundant storage system has two enclosure services modules or enclosure services expander modules. A nonredundant storage system has a single expansion services module or enclosure services expander module and a terminator blank. Because an enclosure services module, enclosure services expander module, and a terminator blank install in the same manner, all these components are referred to as an enclosure services module in this procedure. To install the enclosure services modules, perform the following steps: Dell PowerVault 2xxS Storage Systems SCSI Backplane Board Replacement Instructions 11