IBM System Storage DS3300, Installation, User'S, And Maintenance Manual

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One dual-controller DS3300 and three storage expansion
enclosures
To cable one dual-controller DS3300 and three storage expansion enclosures,
connect them as shown in Figure 19.
Adding a storage expansion enclosure to a dual-controller
configuration that is running
The following procedures provide instructions for adding storage expansion
enclosures to a dual-controller DS3300 storage subsystem that is running.
Note: Make sure that each storage expansion enclosure has two ESMs before you
connect it to a dual-controller DS3300 storage subsystem. The second ESM
must be purchased separately. Contact your IBM marketing representative or
authorized reseller for more information about purchasing a second ESM.
For more information about installing a second ESM, see the Installation
Guide that comes with the storage expansion enclosure.
To add a storage expansion enclosure to a dual-controller DS3300 storage
subsystem that is running, complete the following steps:
1. Make sure that the DS3300 storage subsystem status is Optimal in the
Storage Manager software.
2. Use the storage expansion enclosure Rack Installation Instructions document
to install the new storage expansion enclosure in the rack.
3. Connect the power cables to the new storage expansion enclosure.
DS3300
SAS cable
SAS cable
EXP3000
To DS3300 RAID
controller A
To DS3300 RAID controller B
SAS cable
SAS cable
EXP3000
SAS cable
SAS cable
EXP3000
RAID controller A RAID controller B
Figure 19. One dual-controller DS3300 and three storage expansion enclosure
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System Storage DS3300 Storage Subsystem: Installation, User’s, and Maintenance Guide