Page 3 - subsystem only. Refer to; Components of the enclosure; independently of the server blades and interconnects.
3 Abstract The HP BladeSystem p-Class1U power enclosure provides hot-plug, redundant power for a single enclosure of HP ProLiant BL p-Class server blades from standard single-phase AC inputs. A properly configured HP BladeSystem p-Class 1U power enclosure is an ideal power solution for small office ...
Page 4 - Redundant AC power; the specifications in the QuickSpecs, which are located at
4 Figure 1. HP BladeSystem p-Class 1U power enclosure bays Table 1. HP BladeSystem p-Class 1U power enclosure bay descriptions Item Description Configuration 1 Power supply bay 1 Bus A 2 Power supply bay 2 Bus A 3 Power supply bay 3 Bus A 4 Power supply bay 4 Bus B 5 Power supply bay 5 Bus B 6 Power...
Page 5 - Hot-plug power management module; Features of the enclosure; supported server blade enclosures.; Power zones
5 Hot-plug power management module The hot-plug power management module monitors the power subsystem components and regulates the power-up sequence of newly installed server blades and interconnect switches. The power management module is connected with cables to the server blade enclosure managemen...
Page 6 - server blade enclosures try to power simultaneously.; Firmware in mixed environments; The enclosure upgraded to 2.20 is put into power zone 3.
6 down to the next enclosure and continues until the bottom right blade in the bottom server blade enclosure is powered. In a rack that contains many server blade enclosures, the sequencing process may cause a significant time delay before the last server blade is powered. However, this is preferabl...
Page 7 - Dynamic power saver; Redundancy with dynamic power saver; Initially all power supplies are powered as normal.
7 Dynamic power saver The dynamic power saver feature in the HP BladeSystem p-Class 1U power enclosure provides for efficient use of power in the server blade enclosure. When this feature is enabled, total power consumption is monitored in real time. Power supplies are placed in a standby condition ...
Page 8 - Enabling dynamic power saver; power saver, reinstall the power management module.; Serial port
8 Enabling dynamic power saver To configure the dynamic power saver, the power management module must be removed from the 1U power enclosure and the dynamic power saver feature must be enabled. The module is hot pluggable and can safely be removed during normal server operation (Figure 2). After ena...
Page 9 - No parity
9 Status information Description Power supply redundancy (enclosure N+1 redundancy) Indicates whether there are sufficient power supplies to take over the load in the event that one power supply failed without causing an enclosure power failure. AC feed redundancy Specifies whether sufficient power ...
Page 10 - Remote access to the serial port; remotely through an IP network, or; Efficient cabling
10 Remote access to the serial port IT administrators can enable remote access to the serial port in two different ways: 1. Through the HP Serial Console Servers software, which allows serial devices to be accessed remotely through an IP network, or 2. Through the HP IP Console with the Serial Inter...
Page 11 - Management link cable; Power distribution unit cables
11 Management link cable To provide two-way communication, connect a management link cable from the power management module of the 1U power enclosure to the server blade enclosure (Figure 5). Figure 5. Management link cable connected from the 1U power enclosure power management module to the server ...
Page 12 - Infrastructure configurations; Table 4 to install the proper amount of power supplies.; . The HP BladeSystem p-Class sizing utility is a
12 Infrastructure configurations When using the HP BladeSystem p-Class 1U power enclosure, follow the general guidelines in Table 4 to install the proper amount of power supplies. Table 4. General guidelines for power supply installation in the 1U power enclosure Infrastructure Required power suppli...
Page 13 - Using PDUs with the 1U power enclosure; Redundancy; be sized to take the full load of the attached 1U power enclosures.; Maximum rated VA capacity; more efficient usage of outlets and power.; Dynamic power saver and three-phase input PDUs
13 Using PDUs with the 1U power enclosure When using PDUs within an HP BladeSystem environment, key considerations include redundancy, volt-ampere (VA) capacity of the PDU, number of PDU outlets, and using PDUs with single-phase or three-phase inputs. Redundancy Planners must consider redundancy whe...
Page 14 - NOTE
14 Power supplies installed in bay 2 in each of the 1U power enclosures should also be connected to a different phase on the PDU. Figure 8 illustrates how 1U power enclosures should be connected with four power supplies installed. NOTE : The grayscale outlets on the PDU in Figure 8 indicate which ph...
Page 15 - Standard configurations; Using ProLiant BL35p server blades; ProLiant BL35p server blades.
15 Standard configurations The following configurations review some common usage scenarios for the HP BladeSystem p-Class 1U power enclosure, including the type of server blades populated and PDU options. Using ProLiant BL35p server blades In this configuration, the rack contains three enhanced serv...
Page 16 - Using ProLiant BL30p server blades
16 Using ProLiant BL30p server blades In this configuration the rack contains four enhanced server blade enclosures, four 1U power enclosures and six PDUs (Figure 10). Each enhanced server blade enclosure is populated with ProLiant BL30p server blades and has a 1U power enclosure with six power supp...
Page 17 - Using ProLiant BL20p server blades; ProLiant BL20p server blades.
17 Using ProLiant BL20p server blades In this configuration, the rack contains six enhanced server blade enclosures, six 1U power enclosures, and six PDUs. Each enhanced server blade enclosure is populated with ProLiant BL20p server blades and has a 1U power enclosure with four power supplies instal...
Page 18 - Risks associated with extreme density; supplies, which can risk overloading the PDUs.; increase ease of use and access.; International; PDUs are sufficient.; Supported configurations for the 40 A PDU
18 Risks associated with extreme density While it is possible to build a fully populated a rack with server blades and retain power supply and line cord redundancy using HP BladeSystem p-Class 1U power enclosures, several items should be considered prior to implementation. The primary issues associa...
Page 19 - not available through Factory Express.; Front Back; PDU PDU
19 47U rack Mounting the PDUs in the 1U configuration requires an additional 3U of vertical space in the rack. Three PDUs must be mounted facing the front of the rack and three PDUs must be mounted facing the back of the rack (Figure 12). This provides 42U of vertical space for the servers and power...
Page 20 - Standard 42U rack; complete loss of utility power occurs.
20 Standard 42U rack This configuration, while possible, may cause issues because of the limited access to the PDUs in the 0U space after all the servers are installed. HP recommends mounting the modular PDU in the 1U configuration for best access to breaker actuators and receptacles. Otherwise, in ...
Page 21 - Conclusion; existing racks in their infrastructure.
21 Figure 13 . AC feed redundancy using the HP R5500XR UPS Conclusion The HP BladeSystem p-Class 1U power enclosure is a vital component of the HP BladeSystem infrastructure and plays an important role in helping HP customers build an adaptive enterprise. It provides cost-effective, efficient, hot-p...
Page 22 - For more information; For additional information, refer to the resources listed below.
For more information For additional information, refer to the resources listed below. Resource description Web address HP BladeSystem website www.hp.com/go/bladesystem HP BladeSystem p-Class Enclosure Installation Instructions http://h20000.www2.hp.com/bc/docs/support/SupportManu al/c00383406/c00383...
