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Maximum duplexed storage capacity is 126 GB per disk shelf, 252 GB per DNCP Series 400 (PA-8500) cabinet (63GB
per disk shelf, 126GB per system logical storage).
Located at the bottom of the cabinet are duplexed logic suitcases. These suitcases house the system's central logic
functions: the Hewlett-Packard CPUs, memory modules, and console controller, which is the system's central collection
point for maintenance, diagnostic information and user interface.
If the logic suitcases have a vinyl protective covering on the front, remove the covering once the system cabinet is in place.
Optional air filters are located below the suitcases, on the front of the disk shelves, and on the front of the two power
trays. System air filters must be changed regularly. (Refer to FTX Operating System: DNCP Series 400/400-CO
(PA-8500) Operation and Maintenance Guide (RXXX) for preventive maintenance instructions.)
1.3a.1.2 DNCP Series 400 (PA-8500) Cabinet: Rear Components
The rear of the cabinet has two doors that provide access to the components housed in the back of the cabinet. For an
illustration, See Figure 1.3 which is also described in the following paragraphs.
Figure 1.3. DNCP Series 400 (PA-8500) Cabinet: Rear View
The top of the cabinet has a cable opening that provides access for routing system power cables and communications
cables.
The top of the cabinet frame has an amber cabinet fault light that illuminates when a component within the cabinet has
failed. (For a more detailed explanation of system status lights, refer to the Appendix.
The top region also contains the power input connectors/backplane. The power assembly contains the duplexed AC power
Chapter 1