the system configuration may vary. possible configurations include multiple pseries 670s attached to one hardware management console (hmc)

    the following components make up the base configuration of the pseries 670:

    1 rack and bulk power subsystem (bpa) the bpa is the main power control unit for the pseries 670. this redundant bulk power assembly distributes power at 350 v to each drawer where conversion is made to the required chip level.

    2 processor subsystem the processor subsystem is a 17 eia-unit-high drawer. the processor subsystem contains the backplane, up to two processor modules, up to 8 l3 cache modules, up to two i/o books, up to four memory books, and cooling blowers. the processor subsystem drawer also contains the power subsystem components used in the conversion of 350 v bulk power to the supply voltages required by the various internal components.

    several memory book sizes are available. the minimum memory requirement to operate this system is 4 gb, and the maximum amount of memory is 128 gb.

    3 media drawer the media drawer is a 1 eia-unit high drawer containing an operator panel, 1.44 mb floppy diskette drive, one scsi optical drive (either a cd-rom or a dvd-ram), signal cables, power cables, a 1 eia-unit-high 24-inch rack-mountable sheet metal enclosure, and miscellaneous mechanical hardware. three additional scsi bays are available to add optional cd-roms, dvd-rams, or 4-mm tape drives:

    1 variable speed scsi-2 cd-rom drive

    2 scsi dvd-ram drive

    3 4-mm internal tape drive

    4 integrated battery feature (ibf) (optional) the ibf is a 2 eia-unit-high drawer that can be added to your system. the ibf provides backup electric power in case of a power outage.

    5 i/o drawers the i/o drawer is a 4 eia-unit-high drawer containing up to 16 disk drives, four dasd backplanes, a midplane card, four cooling fans and two power supplies (which are independent of the bulk power assembly). the rack configuration can have up to three i/o drawers.

    for configurations using only 1 i/o board with no additional i/o drawers, only the two dasd backplanes (allowing the installation of up to 8 disk drives) are available.

    6 hardware management console (hmc) - the hmc consists of a display, independent processor, keyboard, and mouse. the hmc is mandatory for all systems. for more information on the use of logical partitioned systems, see the “partitioned system overview”.