EXP520s are denoted in the graphic as 1 while the EXP810s are denoted as
2.)
DS5020 storage subsystem and supported storage expansion
enclosure drive cabling schemes
The DS5020 supports only EXP520 and EXP810 storage expansion enclosures. To
attach one or more EXP810 storage expansion enclosures to the DS5020 storage
subsystem, you must purchase the Attach EXP810 to DS5020 Activation feature
option. Contact your IBM marketing representative for more information about
purchasing feature options.
The cabling schemes for the EXP520 and EXP810 storage expansion enclosures
are the same. This section describes the instructions only for the EXP520; use the
same diagrams and procedures to cable the DS5020 to one or more EXP810
storage expansion enclosures.
The following sections show cabling schemes for supported storage expansion
enclosures and the DS5020 storage subsystem:
v “One DS5020 and one EXP520 storage expansion enclosure” on page 72
v “One DS5020 and two EXP520 storage expansion enclosures” on page 73
v “One DS5020 and three or more EXP520 storage expansion enclosures” on
page 74
DS5020 storage subsystem drive cabling rules
Refer to these general rules when you complete the cabling steps in the cabling
schemes described in this section.
1A
1B
DS5020
Port 2, drive channel 1
1A
1B
1A
1B
1A
1B
Port 1, drive channel 1
Port 1, drive channel 2
Port 2, drive channel 2
1A
1B
1A
1B
EXP520
EXP520
EXP520
1A
1B
1A
1B
1A
1B
1A
1B
1A
1B
1A
1B
EXP810
EXP810
EXP810
Figure 44. Cabling for one DS5020 and two or more storage expansion enclosures in a
mixed environment
Chapter 3. Cabling the storage subsystem 69
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