HP 9000 Virtual Library System - Manual (Page 25)

Mounting the Enclosures into the Rack
WARNING! The enclosure weighs 33.6 kg (74 lb) full. At least two people are
required to lift, move, and install the enclosure.
If only one person is to perform the installation, remove the power modules and hard drives from
an enclosure before installing it, and if possible position it on top of another device or shelf in the
rack to hold it as you attach all the brackets.
CAUTION: When positioning an enclosure in the rack, ensure the air vents at the front and back
of the enclosure are not blocked.
NOTE: The enclosures placements in this procedure are for racks using single phase PDUs. If
your rack uses 3–phase PDUs, install all enclosures two rack positions lower than indicated here.
(Single phase PDUs take up the bottom two rack positions while 3–phase PDUs do not.)
This procedure is for racks using singe phase PDUs. If your rack uses 3-phase PDUs, see the
instructions that came with the PDUs.
1.
If your system contains four full arrays (one base enclosure and three capacity enclosures) per
rack, install the first capacity enclosure at rack positions 3 and 4.
If your system contains fewer than four full arrays, start at rack position 9. Count down two
rack positions for each available capacity enclosure and install the first capacity enclosure at
the lowest point.
NOTE: Install full arrays whenever possible. A partial array (one base enclosure and 1–2
capacity enclosures) should be installed above the full arrays.
Lift the enclosure and slide it onto the rail ledges you previously installed.
2. Attach the front of the enclosure to the front vertical posts using two #10–32 x 3/4–inch
trusshead screws on each side. Do not tighten the screws.
3. In the rear of the rack, align the enclosure side bracket arm holes with the holes in the rail.
Install two #6-32 x 1/4 panhead screws.
NOTE: You may need to remove the power supplies to install these screws.
Installing the Disk Array Enclosures into a Rack 25