iSeries Server 270
122 iSeries Handbook
– If the #7104 is installed with a rack mounted iSeries server 270 in a #0551 iSeries
Rack it may be powered by a PDU by ordering feature #1422 PDU Line Cord.
• #7123 DASD Expansion Unit
– The #7123 is a concurrent maintenance DASD six-position expansion feature, which
may be ordered to support an additional six disk units (for a total of 12) in the #7104
on the Model 270.
– Prerequisite: #7104 on Model 270.
• #7133 DASD Concurrent Maintenance Cage
– The #7133 is a DASD 6-Pack cage that may be ordered for the Model 270 with
processors and #2431.
– The #7133 enables disk unit concurrent maintenance and replaces the standard
non-concurrent maintenance DASD 6-Pack cage.
• #5075 PCI Expansion Tower
See “Expansion Towers” on page 243 for detailed information.
High Speed Link (HSL) on Model 270
The Model 270 has been
enhanced to provide an
external connection to an
expansion tower as shown in
the figure on the right. The
270’s single HSL loop
supports one #5075 PCI
Expansion Tower. Combined
with the system expansion unit
#7104, it provides the Model
270 significant new growth
capabilities. There are no migration towers supported on the Model 270 and no supported
migration path exists to the Model 270.
HSL Loop
#5075 PCI Expansion Tower
Model 270
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