IBM DS8800, Introduction And Planning Manual, Page: 132 / 256

enclosures that are installed on that storage unit. Look in the last two columns to
find the number of I/O enclosures and device adapters that you need on the
storage unit.
Table 29. Model 941 required I/O enclosures and device adapters (based on disk
enclosures)
Storage
Unit Type Storage Unit
Configuration Disk Enclosure
Features (12x0) Required Device
Adapter Features
(30x1) (Note 1
and 2) Required I/O
Enclosure
Features (1301)
941
(2-way)
storage
unit Base model
(stand-alone) 1 - 2 1 2
3 - 4 2 2
941
(4-way)
storage
unit Base model
(stand-alone) 1 - 2 1 2
3 - 4 2 2
Base model +1
expansion model 5 - 6 3
(2 in base model;
1 in expansion
model)
4
(2 in base model;
2 in expansion
model)
7 - 8 4
(2 in base model;
2 in expansion
model)
4
(2 in base model;
2 in expansion
model)
9 - 10 5
(2 in base model;
3 in expansion
model)
4
(2 in base model;
2 in expansion
model)
11 - 12 6
(2 in base model;
4 in expansion
model)
4
(2 in base model;
2 in expansion
model)
Base model +2
expansion models 13 - 14 7
(3 in base model;
4 in first
expansion
model)
4
(2 in base model;
2 in first
expansion
model)
15 - 20 8
(4 in base model;
4 in first
expansion
model)
4
(2 in base model;
2 in first
expansion
model)
Notes:
1.
Each device adapter feature code represents one device adapter pair.
2. The maximum quantity is two device adapter features for each I/O enclosure feature in
the storage unit.
3. Each I/O enclosure feature represents one I/O enclosure pair.
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Introduction and Planning Guide