Dell PowerVault ML6000 - Manual (Page 347)

Chapter 12 Installing, Removing, and Replacing
Installing the Library in a Rack
Dell PowerVault ML6000 User’s Guide 347
Installing Additional
Modules Into the Rack
12
All modules that you add to the rack must be positioned above the
module that you previously installed, since the bottom module must be
secured to the rack-mount shelves (unless you decide to uninstall the
entire library from the rack and reconfigure it).
Required parts:
Rack ears, (4) M5 thumbscrews, (4) nut clips or (4) cage
nuts
Explanation of parts:
Each rack ear contains two elongated holes, enabling
you to fasten it to the rack (using the M5 thumbscrews and either the nut
clips or cage nuts) using the most accessible mounting holes.
1
If you are installing a module above a module that currently has a top
cover, remove the top cover. Similarly, if the module you are
installing has a bottom cover, remove the bottom cover before
installing the module above another module in the rack. You need to
make sure the library is “hollow” all the way through with just one
bottom cover on the lowest module and one top cover on the top
module. See Installing the New 9U Expansion Module on page 268.
2
Determine where in the rack to install the nut clips (or cage nuts).
a If you are adding a module above a previously racked 9U Library
Expansion Module, count nine full units from the location of the
9U Library Expansion Module’s rack ears, and prepare to install
the nut clip (or cage nut) to that location on the rack.
For example, if the 9U Library Expansion Module’s rack ears are
located at 1U and 2U, then the nut clips (or cage nuts) should be
installed at 10U and 11U.
Next, determine which holes you must use within the 10U and
11U markers. Notice that each rack unit (U), as delineated by the
alignment markers in the rack, contains three mounting holes. If
you are adding a module anywhere above the 5U Library Control
Module, position the nut clip (or cage nut) at the middle hole in
Note:
Consider using the following method to determine where
to install the nut clips (or cage nuts) rather than adding the
module to the rack first. If you add the module to the rack
first, installing the nut clips (or cage nuts) can be difficult
because rack space has become restricted.