HP StorageWorks 20 Modular Smart Array - Manual (Page 21)

Installing the Enclosure in a Rack
b. Push the template tabs into the holes in the rack uprights to hold the template
in place.
c. Use a permanent marker pen to indicate the holes in the rack uprights into
which the scissor-like locking latches are to be inserted, as specified by the
template.
d. Repeat these steps to mark the back of the rack, using the information on the
back of the template as a guide to the required location of the locking latches
in this case.
2. If the holes in the rack uprights are round instead of square, remove the standard
pins from the rails and replace them with the round-hole pins provided in the rack
mounting hardware kit.
WARNING: The pins in the rails are load-bearing. Do not remove the pins
except to replace them with the pins for round-hole racks.
3. Identify the left (L) and right (R) rack rails by markings stamped into the rails.
HP StorageWorks Modular Smart Array 20 User Guide 3-3