Hitachi HCP Anywhere Edge On-Site Setup And Recovery page 16

Step 2: Install the rails
At the rear of each outer rail, the letter L is stamped on one lip and the
letter R is stamped on the other lip. With the letter L facing up, the rail goes
on the left side of the rack, when viewed from the front of the rack. With the
letter R facing up, the rail goes on the right side of the rack.
To separate the inner and outer server rails:
1. Slide the inner rail out of the outer rail toward the front until it locks into
place.
The inner part of the outer rail slides also slides out.
2. While pulling forward the white tab on the side of the inner rail that
faces the outer rail, slide the inner rail forward to release it from the
outer rail. Then slide the inner rail all the way out of the outer rail.
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Chapter 2: Mounting the HCP Anywhere edge appliance into a rack
HCP Anywhere Edge Appliance On-Site Setup and Recovery