4–8
HSG80 Array Controller V8.7 Maintenance and Service Guide
Replacement Procedures for Model 2200 Enclosure Elements
CAUTION: ESD can easily damage the cache module or DIMM. Wear a snug-fitting,
grounded ESD wrist strap.
1. Is the controller operating?
•
Yes. Connect a PC or terminal to the controller maintenance port.
•
No. Go to step 6.
2. From the host console, dismount the logical units in the subsystem.
3. If using a Windows NT or Windows 2000 platform, shut down the server.
4. Run FMU to obtain the last failure codes, if desired.
5. Shut down the controller with the following command:
SHUTDOWN THIS_CONTROLLER
NOTE: After the controller shuts down, the reset button and the first three LEDs turn O
N
(see Figure 4–1). This might take several minutes to happen, depending on the amount of
data that needs to be flushed from the cache module.
Proceed only after the reset button stops F
LASHING
and remains O
N
.
6. Disengage both retaining levers and remove the cache module, and then place the
cache module in an antistatic bag or on a grounded antistatic mat.
7. Remove the DIMMs from the cache module for use within the replacement cache
module.
a.
Press down on the DIMM retaining clips
3
at both ends of the DIMM
1
being removed (see Figure 4–5).
NOTE: To make pressing down on the DIMM retaining clips easier, use the eraser end
of a pencil or a small screwdriver.