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Drive Loop A Fibre | Input | Output |
| Drive Loop B Fibre |
Channel interface | Input | Channel interface | ||
Cables |
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| Cables |
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| Output |
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| Last DS4000 drive |
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| enclosure |
Storage Expansion
Enclosures -
Group 1
First DS4000 drive |
enclosure |
Drive Loop A |
Drive Loop B
DS4500 Storage
Subsystem
Drive minihub 1
Drive minihub 2
ds452min
Figure 8. Redundant drive loop cabling overview with two mini hubs in slots 1 and 2 — Not for use unless you meet
the requirements in the above Note
Configuring the drive loops
The procedure and illustrations in this section show how to connect one group of four storage expansion enclosures in a redundant drive loop. Instructions for how to connect a second group of four storage expansion enclosures in a redundant drive loop are also included in this procedure.
To complete this procedure, you will need two
Attention: Handle and install
1.Connect the first two storage expansion enclosures to drive loop A, as shown in Figure 9 on page 11.
Starting with the first storage expansion enclosure, connect a
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