IBM DS3950, Руководство пользователя и инструкция по установке

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Note: The M5 screws and washers may already be attached to the support
rails. If so, remove them from the support rails.
4.
The rack-mounted unit is three EIA units high. Decide accordingly where you
are going to install the support rails.
Attention: Use the rack mounting template provided in Figure 9 on page 25
and Figure 10 on page 26 to locate the proper rack mounting holes for
installing the support rails into the rack.
Note the following considerations before you choose where to install the rails:
v If you are installing the EXP395 into an empty rack, install it into the lowest
available position so that the rack does not become unstable.
v
If you are installing more than one EXP395 in the rack, start at the lowest
available position, and work upward.
v
If appropriate, allow for possible later installation of other units.
v
If necessary, remove the rack power distribution unit before you install the
support rails.
v
For procedures and more information, refer to the installation and service
guide, or equivalent, for the rack.
5. Using a #2 Phillips screwdriver, loosen the two screws on the left support rail
that hold the two parts of the rail together (
5
).
Note: The support rails are not marked as left or right. However, each rail can
be correctly mounted on only one side of the rack cabinet. The rails
should be mounted with the alignment pins at the back of the rack.
Figure 11 on page 28 shows the installation of the left support rail.
6. Hold the back of the rail against the inside of the rack-mounting flange. Make
sure the rail mounting guide pins are in the correct holes. See Figure 10 on
page 26 for an illustration.
7. Using the 5/16 (8 mm) hex nut driver, securely tighten the two M5 screws
(
2
).
Note: Make sure you use a washer when installing an M5 screw through a
square hole on the rack-mounting flange.
8. Extend the rail to the front of the rack until it makes contact with the front
rack-mounting flange (
3
).
9. Securely tighten the two M5 screws (
1
).
Note: Be sure to install the screws labeled install first in Figure 9 on page 25.
10.
Securely tighten the two screws on the left support rail that hold the two parts
of the rail together (
5
).
11. Repeat step 5 through step 10 for the right support rail.
Note: Because the mounting holes on the rack are not always the same size as
the mounting screws, the lip (
6
) of each of the support rails may not
line up evenly. Make minor adjustments as needed to ensure that the
lip of the left and right support rails are lined up evenly on the racks.
Failure to do so will cause the storage expansion enclosure to fit
unevenly in the rack.
Chapter 2. Installing the EXP395
27