AS/400e server 840
184 AS/400e System Handbook
The mounting for the first 15 disk units is included in the #9079 (base). The mounting for the
next 30 disk units is optional by ordering feature code #5101 30 Disk Expansion Feature.
The #9079 also supports up to two removable media devices (internal tape or CD-ROM).
These removable media devices are supported by the #9748.
#5101 30-Disk Expansion Feature
The #5101 is a disk unit expansion enclosure feature for the #5074 Expansion Tower, the
#9074 Base I/O Enclosure, and the #9079 Base I/O Tower. The #5101 includes two 15 disk
unit enclosures, one 765-Watt power supply, backplanes and cables. One #4748 PCI RAID
Disk Unit Controller is required to support the 15 disk units in each of the two disk unit
enclosures included with #5101. Two #4748 PCI RAID Disk Unit Controllers are required to
support 30 disk units.
#2730 Programmable Regulator
The #2730 Programmable Regulator (quantity two) is required if the #3196 8 GB Main
Storage Card is installed in the Model 840.
#5150 Battery Backup (external)
#5150 is an external battery backup that when used in conjunction with the internal battery
backup is capable of extending the battery backup time on Models 840 and SB3.