IBM N3400, Инструкции по установке и настройке

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Notes:
v
Figure 11 shows storage system connections to EXN2000/EXN4000 expansion units. On EXN1000
expansion units, the positions of the In and Out ports are reversed from those of the
EXN2000/EXN4000.
v
Figure 11 shows only the first two storage expansion units in a loop. The number of storage
expansion units per loop might be different for your configuration.
3. For any additional storage expansion units in a loop, connect the module A (IOM A) Out port to the
next storage expansion unit's module A In port, as shown in Figure 11. Repeat for module B (IOM B).
Dual-path Fibre Channel cabling
Use these instructions to implement dual-path Fibre Channel cabling in a high-availability (active/active)
configuration.
This step is optional. You must have ordered the "Dual-Path Fibre Channel Cabling" feature and/or
additional fiber cables and SFP Gigabit Interface Converters (GBICs) to implement this feature. Dual-path
Fibre Channel cabling only applies to high-availability (active/active) A21 models. The purpose of
dual-path Fibre Channel cabling is to provide each controller node in a high-availability (active/active)
configuration with redundant Fibre Channel paths (Loop A and Loop B) to each loop of disk storage
expansion units. It improves reliability and availability by providing redundant Fibre Channel paths from
each node.
Two additional SFP GBICs and two Fibre Channel cables are used to connect the last storage expansion
unit in a loop of storage expansion units to the other node of the high-availability (active/active)
configuration.
CM-A
PSU PSU
IN OUT
IN OUT
PSU PSU
IN OUT
IN OUT
0a
PSU PSU
CM-B
B
A
B
A
EXN
EXN
0a 0b 10101
e0P e0ae0b e0c e0d
0b 10101 e0P
e0ae0b e0c e0d
N3400
SAS
SAS
n340014
Figure 11. Cabling additional storage expansion units
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