Dell PowerVault Storage MD1280 Dell Storage MD1280 Service Guide - Page 21

Figure 13. Closing a drive drawer 1. Drive drawer 2. Open-drawer lock 8. Close the drive drawer. a. Pull and hold both drive drawer releases and push the drive drawer inside slightly. b. Release and push the drive drawer until it clicks into a place. WARNING: After releasing the open‐drawer locks, move hands away from the slides to avoid injury while pushing the drive drawer inside. NOTE: Allow the enclosure to identify the hard drive and determine its status. If the hard drive is functioning properly, DDIC LED is off. Replacing I/O EMM modules The Dell Storage MD1280 enclosure supports redundant hot‐swappable I/O Enclosure Management Modules (EMMs). EMMs provide the following data path and enclosure management functions for the enclosure: • Monitoring and controlling enclosure environment elements such as temperature, fan, PSUs, and enclosure LEDs • Controlling access to hard drives • Communicating enclosure attributes and states to the host 21