28 QXS 12G Site Planning Guide
Expansion Chassis IOM
Figure 30 provides a rear view of the expansion chassis IOM used in the 2U24-drive systems. Ports
A/B/C ship configured with 12Gb/s HD mini-SAS (SFF-8644) external connectors.
Figure 30 Expansion Chassis IOM
IMPORTANT: RAID chassis and expansion configurations:
• When the expansion chassis shown above (Figure 29) is used with RAID chassis for adding
storage, its middle HD mini-SAS expansion port (“B”) is disabled by the firmware.
• The Ethernet port on the expansion module is not used in RAID chassis and expansion
configurations, and is disabled.
2 3
4
1
5
6
1
SAS Port
2
SAS Port A
3
SAS Port B
4
SAS Port C
5
Ethernet Port
6
Lock/Release Handle
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