Hardware Detail

Item Reference:	HW0339
Machine Type:	5074	Serial Number:	00285
	AS/400 Expansion Tower
	The #5074 is attached to AS/400 Models 520, 550, 570, 595 810, 820, 825, 830, 840, 870, and 890 for adding up to 45 disk units, up to 11 Peripheral Component Interconnect (PCI) input/output adapters (IOAs), and up to two removable media units. The #5074 includes the #9691 Base Bus Adapter or the #9739 Base Optical Bus Adapter to provide the HSL interface to the system. The IBM marketing configurator adds one #9691 Base Bus Adapter (copper) bus adapter interface or #9739 Base Optical Bus Adapter (optical) to the order. The #5074 contains two buses. The #5074 has a #9943 Base PCI IOP. It also has PCI slots for up to 11 PCI IOAs, space for up to 45 disk units (15 are “base”, 30 additional with #5101), space for two removable media devices (internal tape, CD-ROM, or DVD-RAM), one battery backup, and redundant or hot swap power supplies. The 11 PCI IOAs are supported (driven) by a #2843 PCI IOP, #2844 PCI IOP, #9943 Base PCI IOP, #2790 PCI Integrated Netfinity Server, or the #2791/#2792/#2799 or #4710 PCI Integrated xSeries Server. The #5074 can contain Ultra2 SCSI disk units that are controlled by a #2757/#4748/#4778 PCI RAID Disk Unit Controller. The removable media devices are supported by the same #2757/#4748/#4778 which supports the first set of 15 disk units. A maximum of three #2757/#4748/#4778 PCI RAID Disk Unit Controllers (any combination) are supported. The #5074 PCI Expansion Tower supports four 32-bit and seven 32/64-bit PCI slots. The mounting for the first 15 disk units is included in the #5074 PCI Expansion Tower (base). The mounting for the next 30 disk units is optional by ordering a #5101 30 Disk Unit Expansion. The #5074 also supports up to two removable media devices (internal tape, CD-ROM, or DVD-RAM).
Date of Origin:		Donor:
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Location:	On Display - HLG19	Commissioned By: Museum	Until: