42 QXS 12G Site Planning Guide
chassis. Figure 37 on page 40 shows an example of a fan oriented for use in the Fan 0, Fan 1, Fan 2,
Fan 3, and Fan 4 slots of the RAID or expansion chassis.
Figure 40 5U84 Chassis Fan
QXS-484 12G RAID and Expansion Physical Requirements
The floor space at the installation site must be strong enough to support the combined weight of the
rack, RAID chassis, expansion chassis, and any additional equipment. The site also requires sufficient
space for installation, operation, and servicing of the chassis, together with sufficient ventilation to
allow a free flow of air to all chassis.
Composition
The RAID chassis and expansion chassis is comprised of sheet steel that is bonded together using
rivets, welding, and other forced contact methods. The metal surfaces are free from non-conductive
coatings and paint.
Chassis Designators
The RAID and expansion chassis designators are as follows:
• 5U84 chassis (SFF):
• “5U84” denotes the following (with controller or expansion modules)
• 5U is the height of the chassis (8.75 inches)
• 84 denotes the total number of drives that can be installed within the two drawers
• The 5U84 chassis ships without drives installed.
• Drives that can be installed within the chassis are:
• 2.5” (with an adapter) and 3.5” SAS
• 3.5” SATA
• Two controller modules or two expansion modules per chassis
• Two power supplies per chassis
• Five fans per chassis
1
Release Latch
2
Handle
3
Fan OK
4
Fan Fault
1
2
3
4
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