Chapter 7. IBM iSeries 820, 830, and 840 features and placement 245
#7840 #7840 Side-by-Side for 1.8 m Racks
The #7840 allows a row of racks without side panels to be bolted together in a continuous suite, using the provided
side-to-side rack connecting hardware. When multiple racks are joined in this way, cables can be easily run between racks
without having to exit the continuous rack enclosure. A small gap is maintained between the two adjacent racks, which is
filled by three matching steel trim pieces that snap into place on the front, top, and rear, between each rack. The trim pieces
cover the space between each rack for an enhanced appearance and for additional protection of the equipment inside the
racks. Side panels are needed only for the two end racks of the suite.
The #7840 is a Customer Install Feature.
#8079 #8079 Optional Base 1.8 M I/O Rack
The #8079 is an optional base I/O rack shipped to support additional I/O for the Model 840 instead of the #9079 Base I/O
Tower. The #8079 supports up to 90 disk units, up to 28 PCI slots, and up to four removable media units. An #8079 is a
#9079 Base I/O Tower with a #5074 (#0574 specify code) tower packaged in a rack. A #9691/#9739 HSL bus adapter is
required for the upper unit.
Select three (if only three are on the order, only copper can be specified) or four of the following HSL cables depending on
the requirements of optical and copper HSL:
#1460 - 3 m Copper HSL Cable
#1461 - 6 m Copper HSL Cable
#1462 - 15 m Copper HSL Cable
#1470 - 6 m Optical HSL Cable (top enclosure only)
#1471 - 30 m Optical HSL Cable (top enclosure only)
#1472 - 100 m Optical HSL Cable (top enclosure only)
#1473 - 250 m Optical HSL Cable (top enclosure only)
The #1462 - 15 m Copper HSL Cable can be used on any HSL port of the Model 840. If a #5077 Migration Tower II is
included in the configuration, then four copper HSL cables must be ordered for the #8079 Optional Base 1.8 M I/O Rack.
Select two of the following SPCN cables per tower:
#0369 100 m Optical SPCN Cable
#1463 - 2 m SPCN Cable
#1464 - 6 m SPCN Cable
#1465 - 15 m SPCN Cable
#1466 - 30 m SPCN Cable
#1468 - 250 m Optical SPCN Cable
Specify two-line cords for the #8079 Optional Base 1.8 M I/O Rack. Some countries or regions offer fewer choices of line
cords and some countries or regions are shipped a default line cord type.
The #8079 has two #9943 Base PCI IOPs and a #2757, #9778, or #9748 Base PCI RAID Disk Unit Controller. It has PCI
slots for up 22 PCI IOAs, space for up to 90 disk units (#5101/#5111 is installed in both the bottom and top unit), space for
four removable media devices, two battery backup, and redundant or hot swap power supplies.
The #8079 is capable of controlling Ultra2 SCSI disk units.
The PCI IOAs are supported (driven) by two #9943 Base PCI IOPs and #2843/#2844/#2847 PCI IOPs, #2790 PCI
Integrated Netfinity Server, or #2791/#2792/#2799 PCI Integrated xSeries Servers.
The #8079 supports up to four removable media devices (internal tape or CD-ROM). These removable media devices are
supported by one #9778/#9748 and a #2757, #2780, #4748, or #4778 PCI RAID Disk Unit Controller.
If the top enclosure is to be attached to a different system than initially ordered, process an RPO to remove the #0574
specify code from the initially ordered machine and add it to the target machine.
The #8079 was withdrawn from marketing on 21 November 2003.
