User`s guide

26 007-4522-003
1: Storage System Overview
Storage System Rack
This section contains information about the 2 Gb TP9100 storage system rack in the
following sections:
• “Rack Structure” on page 26
• “Power Distribution Units (PDUs)” on page 29
• “Opening and Closing the Rear Rack Door” on page 31
Rack Structure
The 2 Gb TP9100 rack is 38U high and is divided into 12 bays. Eleven of these bays can
house enclosures; the 2U bay at the top of the rack accommodates the SGI Fibre Channel
Hub or one or more Fibre Channel switches. All eleven of the enclosure bays can be
occupied by independent RAID enclosures or a combination of RAID enclosures and
expansion enclosures. (Each RAID enclosure can support up to three expansion
enclosures). Unoccupied bays must contain a 3U filler panel to provide proper airflow.
Caution: Equipment must be installed in the bays only as described above.
Figure 1-19 shows the front of a 2 Gb TP9100 rack with two enclosures installed.