Removing And Replacing The Cover - IBM 7212 102 Service Manual

Do not install this unit in a rack where the air flow is compromised.
To ensure proper cooling, place the unit so that the cooling fan exits at the rear of
the unit and the air inlet holes at the front of the unit have sufficient clearance to
ensure airflow.
DANGER
CAUTION:
Ensure that all rack-mounted units are fastened in the rack frame. Do not extend
or exchange any rack-mounted units when the stabilizer is not installed.
(RSFTC222)
CAUTION:
When the unit is extended, its weight can turn over a rack that is not steady.
Before you pull the unit out of the rack, ensure that a rack stabilizer is attached
to the bottom front of the rack.
Do not pull out more than one unit at a time. The rack can turn over if you pull
out more than one unit at a time. (RSFTC224)

Removing and Replacing the Cover

Use the following procedure to prepare the 7212 Storage Enclosure for removal or
installation of a storage device.
Note: Before performing this procedure, ensure that there is no activity on the
1. Remove any media from the installed devices.
2. Turn off the power to the 7212 Storage Enclosure.
3. Remove the 7212 Storage Enclosure from the host system configuration (follow
DANGER
4. Unplug the 7212 Storage Enclosure power cable from the electrical outlet.
5. Disconnect the power cable from the 7212 Storage Enclosure.
6. Disconnect the SCSI bus (signal) cable from the 7212 Storage Enclosure.
7. Place the 7212 Storage Enclosure on a flat work surface.
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7212 Storage Device Enclosure Service Guide
An electrical outlet that is not correctly wired could place hazardous voltage
on metal parts of the system or the products that attach to the system. It is the
customer's responsibility to ensure that the outlet is correctly wired and
grounded to prevent an electrical shock. (RSFTD201)
SCSI bus or operations being performed by the installed devices. Turning off
the 7212 Storage Enclosure during activity on the bus could result in loss of
data.
the procedure in the 7212 Model 102 Storage Device Enclosure Setup and Operator
Guide).
To prevent a possible electrical shock when installing the device, ensure that
the power cord for that device is unplugged before installing signal cables.
(RSFTD204)