1. Follow the instructions in the Installation, User’s, and Maintenance Guide for
your DS5000 or DS4000 storage expansion enclosure to set up and mount the
storage expansion enclosures.
2. Select a cabling topology appropriate for the number of storage expansion
enclosures you will connect to the DS5020. If you are connecting external
storage expansion enclosures to the DS5020, make sure that the storage
expansion enclosures are populated with at least two drives before you turn on
the power. In addition, you must have at least two drives in the DS5020 storage
subsystem before you power it on.
“DS5020 storage subsystem drive cabling topologies” describes the schemes for
cabling different numbers of storage expansion enclosures to the DS5020 and
to each other (if you are connecting more than one storage expansion
enclosure).
3. After you select the cabling topology for your configuration, follow the cabling
diagram for your chosen topology and perform the steps identified in “DS5020
storage subsystem and supported storage expansion enclosure drive cabling
schemes” on page 67.
4. If required, set unique enclosure IDs for all storage expansion enclosures that
are cabled to the DS5020. See “Storage expansion enclosure ID settings” on
page 78, and then refer to your storage expansion enclosure installation manual
for details on setting the enclosure ID.
The DS5020 storage subsystem locates the drives in the storage expansion
enclosures after you turn on the power to the configuration. Always connect power
to the storage expansion enclosures first and then connect power to the DS5020.
After you have powered on the configuration, use the DS Storage Manager client to
check the status of the new drives, correct any errors found, and configure the new
drives.
Notes:
1. EXP810 and EXP520 storage expansion enclosures can be intermixed behind a
DS5020 drive channel.
2. Tocable EXP810 storage expansion enclosures with a DS5020, you must
purchase the Attach EXP810 to DS5020Activation feature option.
DS5020 storage subsystem drive cabling topologies
This section provides preferred cabling topologies for cabling storage expansion
enclosures to the DS5020 storage subsystem. The cabling topologies include the
following:
v“One DS5020 and one storage expansion enclosure” on page 59
v“One DS5020 and two storage expansion enclosures” on page 60
v“One DS5020 and three storage expansion enclosures” on page 62
v“One DS5020 and four storage expansion enclosures” on page 63
v“One DS5020 and up to six storage expansion enclosures” on page 64
v“One DS5020 and two or more storage expansion enclosures in a mixed
configuration” on page 66
Each example provides redundant paths to the drives. If one of these examples is
suitable for your hardware and application, complete the cabling connections as
described by the graphics. If you have hardware other than what is shown in these
examples to include in your topology, use these examples as a starting point for
creating your specific topology.
Chapter3. Cabling the storage subsystem 57