Quantum QXS G2 Series, Hardware Installation And Maintenance Manual

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22 QXS G2 Hardware Installation and Maintenance Guide
Front of 2U24 RAID or Expansion Chassis
Figure 25 provides an illustration of the front of the 2U24 RAID or expansion chassis (without drives
installed).
Figure 25
Front of 2U24 RAID or Expansion Chassis
NOTE:
•
Either 2U chassis can be configured as a RAID chassis (two controllers) or as an optional expansion
chassis for adding storage.
• The 2U12 expansion chassis uses the same expansion IOMs as the 2U24 and 5U84 expansion
chassis.
• The 2U24 expansion chassis uses the same expansion IOMs as the 2U12 and 5U84 expansion
chassis.
5U Chassis Core Product
The 5U chassis consists of a sheet metal chassis, integrated PCBs, and a module runner system. The
design concept is based on an chassis subsystem together with a set of plug-in modules. A typical
chassis system—as supplied—includes the following:
• A chassis consisting of:
• Two sliding drawers containing Disk Drive in Carrier (DDIC) modules (42 drive slots per drawer).
• An Operator’s (Ops) panel.
• A chassis drawer bezel.
• A midplane PCB into which other components and CRUs connect.
• Two power supply units (PSUs) with power cords.
• Five cooling fans.
• Two RAID controllers (with Ethernet cable) or two expansion IOMs: 2 x SBB-compliant interface
slots.
• Up to 84 DDIC modules populated within two drawers (42 DDICs per drawer; 14 DDICs per row)
as follows: