To create drive loop A (of the DS3950 redundant drive loop) shown in Figure 28,
you would perform the following steps:
1.
Make a fibre-channel connection from the
DS3950 Storage Subsystem
to port 1B
of the
first storage expansion enclosure
(connection
1
).
2.
Make a fibre-channel connection from port 1A of the
first storage expansion
enclosure
to port 1B of the
second storage expansion enclosure
(connection
2
).
To create drive loop B (of the DS3950 redundant drive loop) shown in Figure 28,
you would perform the following steps:
1.
Make a fibre-channel connection from the
DS3950 Storage Subsystem
to port 1B
of the
second storage expansion enclosure
(connection
3
).
2.
Make a fibre-channel connection from port 1A of the
second storage expansion
enclosure
to port 1B of the
first storage expansion enclosure
(connection
4
).
3.
Cabling the power supply
Complete the following steps to connect the power supply cable:
1.
Using the supplied strap, tie the power supply cord to the rail to provide strain
relief for the power cord.
2.
Connect the power cable to the power supply.
3.
Continue with “Powering on the EXP395” on page 47 for the initial startup of
the storage expansion enclosure.
DS3950 Storage subsystem
EXP395
EXP395
Drive
loop A
Drive
loop B
Figure 28. Correct EXP395 redundant drive loop configuration
44
IBM System Storage DS3950 EXP395 Storage Expansion Enclosure: Installation, User’s, and Maintenance Guide
Summary of Contents for DS3950
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