IBM SAN192C-6 Installation, Service And User Manual page 82

• Verify that a two-post rack is installed and secured to the concrete subfloor (see Installing a Rack or
Cabinet).
• If any other devices are stored in the rack or cabinet, verify that they are located below where you plan
to install the switch. Also, verify that lighter devices in the same rack are located above where you plan
to install this switch.
• Verify that the two-post bottom-support rails kit was ordered and shipped with the chassis.
About this task
The bottom-support rails support the weight of the switch chassis in the rack or cabinet. To maximize the
stability of the rack, you must attach these rails at the lowest possible rack unit (RU).
Warning : To prevent bodily injury when mounting or servicing this unit in a rack, you must
take special precautions to ensure that the system remains stable. The following guidelines are
provided to ensure your safety:
• This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
• When mounting this unit in a partially filled rack, load the rack from the bottom to the top with
the heaviest component at the bottom of the rack.
• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing
the unit in the rack.
Procedure
1. Position one of the two bottom-support rails at the lowest possible RU in the rack or cabinet. Be sure
there is at least 9 RU of vertical space above the rails to install the chassis.
56 IBM Storage Networking SAN192C-6, SAN384C-6 and SAN768C-6: SAN192C-6, SAN384C-6 and
SAN768C-6 Installation, Service, and User Guide