HP StorageWorks Replacing an HSG60 and HSG80 Cache Module Installation Instructions (EK-80CAH-IM. F01, March 2005)

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Figure 1: Cache module
Figure 2: Cache module locations
Note: In Figure 2, the environmental monitoring unit (EMU) and
power verification assembly (PVA) modules are present in only
HP StorageWorks BA370 enclosures. The controller and cache
module locations are consistent with other HP StorageWorks
controller enclosures.
Replacing a cache module in HSG60 and
HSG80 single-controller configurations
Complete the steps in the following subsections to replace a
HSG60 and HSG80 cache module in an HSG60 and HSG80
subsystem. These procedures are applicable to HSG60 and
HSG80 cache modules that are in a single-controller
configuration.
Caution: Static electricity can easily damage a cache
module or a DIMM. Wear a snug-fitting, grounded
electrostatic discharge (ESD) wrist strap.
Removing a cache module
Perform the following steps to remove a cache module in a
single-controller configuration:
1. Determine whether the controller is operational, and
then complete one of the following two options:
■ If the controller is operational, connect a PC or
terminal to the controller maintenance port, and
then proceed to step 2 below.
■ If the controller is not operational, proceed to
step 7.
2. From the host console, stop all host activity to the
controller, and then dismount the logical units in the
subsystem.
3. If you are using Microsoft® Windows 2000 or
Windows NT®, shut down the server.
4. Run the Fault Management Utility (FMU) to obtain the
last failure codes, if necessary.
5. Shut down “this controller” by entering the following
command:
SHUTDOWN THIS_CONTROLLER
6. Proceed to the next step only after the Reset button
stops flashing and remains on.
Note: After the controller shuts down, the Reset button and the first
three port LEDs light up. This can take several minutes to happen,
depending on the amount of data that needs to be flushed from the
cache module.
7. For the cache module to be replaced, complete one of
the following two options:
■ For cache modules in an M2100 or M2200
enclosure, disengage both cache module
retaining levers, and then remove the cache
module.
■ For cache modules in a BA370 enclosure,
complete the following substeps:
a. Disengage both cache module retaining
levers, and then partially remove the cache
module—about halfway.
Caution: You must disable the ECB before disconnecting
the ECB Y-cable. (If the ECB status light is off, this indicates
that the ECB is disabled.) Failure to do so can result in
cache module damage.
b. Disable the ECB by pressing the battery
disable switch until the status light stops
flashing. In approximately 5 seconds, the
status light stops flashing.
Note: Refer to the documentation that shipped with the ECB for
additional battery information.
c. Disconnect the ECB Y-cable from the cache
module.
1 Cache memory power LED
2 External cache battery (ECB) cable
3 Retaining lever
4 Dual inline memory module (DIMM)
5 Backplane connector
1 EMU
(BA370
enclosure
only)
2 PVA (BA370
enclosure
only)
3 Controller A
4 Controller B
5 Cache A
6 Cache B
CXO6465B
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