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Table 15. Possible combinations of storage expansion enclosures per drive loop
Number of
FAStT
EXP500
units (10
drives/unit)
Number of
DS4000
EXP700
units (14
drives/unit)
Number of
DS4000
EXP710/
EXP100
units (14
drives/unit)
Number of
DS4000
EXP810
units (16
drives/unit)
Total number
of storage
expansion
enclosures
Total number
of drives
0 8 N/A N/A 8 112
1 7 N/A N/A 8 108
2 6 N/A N/A 8 104
3 6 N/A N/A 9 114
4 5 N/A N/A 9 110
5 4 N/A N/A 9 106
6 3 N/A N/A 9 102
7 3 N/A N/A 10 112
8 2 N/A N/A 10 108
9 1 N/A N/A 10 104
10 0 N/A N/A 10 100
11 0 N/A N/A 11 110
N/A N/A 8 0 8 112
N/A N/A 6 1 7 100
N/A N/A 5 2 7 102
N/A N/A 4 3 7 104
N/A N/A 3 4 7 106
N/A N/A 3 5 7 108
N/A N/A 1 6 7 110
N/A N/A 0 7 7 112
For the latest information on requirements such as enclosure cabling schemes,
minimum version of controller, or enclosure ESM firmware required for intermixing
DS4000 storage expansion enclosures, refer to the IBM TotalStorage DS4000 Hard
Drive and Storage Expansion Enclosure Installation and Migration Guide.
Overview: Connecting storage expansion enclosures to a storage
subsystem
This section contains the following topics:
1. “General rules and recommendations for cabling storage expansion enclosures”
2. “Storage expansion enclosure cabling diagrams” on page 68
3. “Steps for connecting storage expansion enclosures to a storage subsystem” on
page 75
General rules and recommendations for cabling storage
expansion enclosures
Refer to these general rules and recommendations when you complete the steps
described in “Steps for connecting storage expansion enclosures to a storage
subsystem” on page 75.
Chapter 3. Cabling the storage subsystem 65