Chapter 1 DXi3500 and DXi5500 System DescriptionDXi3500 and DXi5500 SystemsQuantum DXi3500 and DXi5500 User’s Guide 8DXi3500 CustomerReplaceable Components 1 The following list of DXi3500 components are customer replaceable (see“Related Documents” on page xv for replacement instructions):• Drive sleds (four or eight drive sleds per storage array)• Two redundant power supplies• Redundant fan modules located internally• Battery Backup Unit, BBUDXi5500 SystemComponents 1 The DXi5500 system houses the following components:• Drive sleds (twelve or twenty four drive sleds per storage array)(qualified IT personnel serviceable)• Four redundant power supplies (qualified IT personnel qualified)• Redundant fan modules located at the back of the unit (qualified ITpersonnel qualified)• Battery Backup Unit, BBU (qualified IT personnel serviceable)• Motherboard, CPU, and memory (Quantum Field Service Only)• RAID controllers (Quantum Field Service Only)• Optyon Fibre Channel board (Quantum Field Service Only)The qualified IT personnel serviceable components are removed andreplaced either through the front/back of the system or by removing thetop cover (see figure 4).Note: The replacement procedures must be completed by qualifiedIT personnel.Note: The DXi5500 system with 24 hard drives requires two OptyonFibre Channel cards.
