
7.3 Add-On of SDI Disk Drive Installation
7.3.2 Add-On Disk Drive Installation
Unpack the add-on disk drive and complete the thermal stabilization per
the procedures in Chapter 1. Make sure all add-on disk drive and cabinet
hardware is available before beginning installation procedures. Refer to
Section 7.3.1.
The following sections describe the add-on disk drive installation tasks.
Note
For the add-on storage element or sequence for the DECArray300
cabinet, refer to Chapter 3.
1. Upper Level Disk Drive Installation
Only valid for RA9x Drives : When installing an add-on disk drive in the
left-hand, disk drive position 5 of the cabinet, it is necessary to remove the
cabinet top cover. The drive chassis stabilizer bracket cannot be removed
from the frame and attached to the upper level disk drives without first
removing the cabinet top cover refer to Section 3.7.
Each upper level disk drive is supported by two chassis retainer brackets
(top and bottom), and two (top and bottom) factory-installed rear lock-
down brackets with one U-clip each (only RA9x). Detailed instructions for
removing / installing this hardware are found in Section 3.12 and 3.17.
The RA9x disk drives will be supported by two chassis stabilizer brackets.
Note
An DECArray300 cabinet system with only one disk drive in disk drive
position 5 or 1 will have a 25-pound stabilizer plate (weight) attached
to the underside of the upper cabinet H-stiffener.
2. Center Level Disk Drive Installation
When installing an add-on disk drive in the center level of the cabinet
(disk drive position 3 or 4), each disk drive is supported by two chassis
retainer brackets (top and bottom), and two factory-installed rear lock-
down brackets (top and bottom) with one U-clip each (only RA9x). Detailed
instructions for removing / installing this hardware are described in Section
3.12 and 3.17.
Chassis stabilizer brackets are not used for center level disk drive support
in this cabinet.
Installation and Preparation of the Add-On SDI Storage Elements 7–7
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