Q-store - Compaq StorageWorksTM About This Card 3. If using a Microsoft Windows NT or Windows 2000 platform, shut

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Compaq StorageWorksTM About This Card 3. If using a Microsoft Windows NT or Windows 2000 platform, shut
down the server.
This document contains instructions to replace a cache module in an 4. Run the fault management utility (FMU) to obtain the last failure
HSG60, HSG80, HSJ80, or HSZ80 subsystem. codes, if desired.
5. Shut down "this controller" with the following command:
NOTE: For instructions on upgrading a single-controller configuration to a
REPLACING AN dual-redundant controller configuration, see the appropriate array controller user guide
SHUTDOWN THIS_CONTROLLER
or maintenance and service guide.
1
NOTE: After the controller shuts down, the reset button and the first three light
HSX80 CACHE
General Information DIMM
emitting diodes (LEDs) turn ON (see Figure 3). This might take several minutes to
DIMM slot
happen, depending on the amount of data that needs to be flushed from the cache
DIMM
Figure 1 and Figure 2 provide general information about the cache module. module.
MODULE 2
In some Compaq StorageWorks enclosure installations, the environmental retaining clip
Proceed only after the reset button stops FLASHING and remains ON.
monitoring unit (EMU) and power verification assembly (PVA) shown in
Figure 2 do not exist. 3
1
NOTE: In dual-redundant configurations, both cache modules must contain the same 2
memory configuration, regardless of the array controller software (ACS) version.
5 1 2 3 4 5 6 CXO6577B
Figure 4. Removing or installing a DIMM
CXO6991A
1
11. Gently remove the DIMM from the DIMM slot and place the DIMM
Figure 3. Controller reset button and first three LEDs
on an antistatic bag or a grounded antistatic mat.
~
4 12. Repeat step 10 and step 11 for each DIMM.
IMPORTANT: For Model 2100 and 2200 enclosures, omit step 6 and step 7. The ECB does
2 not contain switches or use ECB Y-cables.
Installing a Cache Module
3
Use the following steps to install a cache module:
CXO6465B
CAUTION: The ECB must be disabled--the status LED is OFF--before
Cache memory power LED disconnecting the ECB Y-cable from the cache module. Failure to disable the ECB
IMPORTANT: The replacement cache module must contain the same cache memory
External cache battery (ECB) cable might damage the cache module.
Open Card Completely Before configuration as the module being replaced.
Retaining lever
Beginning Installation Procedures Dual inline memory module (DIMM) 6. Disable the ECB by pressing the battery disable switch until the status
1. Insert each DIMM (see Figure 4, ) straight into the appropriate slot
Backplane connector LED stops FLASHING--approximately five seconds.
of the cache module, ensuring that the notches in the DIMM align with
7. Disconnect the ECB Y-cable from the cache module.
Figure 1. Cache module the tabs in the slot.
European Union Notice 8. Disengage both retaining levers, remove the cache module, and place 2. Press the DIMM gently into the slot until seated at both ends.
the cache module on an antistatic bag or a grounded antistatic mat.
3. Engage the two retaining clips for the DIMM.
Products with the CE Marking comply with both the EMC Directive (89/336/EEC) and the 2
1

Low Voltage Directive (73/23 EEC) issued by the Commission of the European Community. EMU (BA370 only) NOTE: Remove all DIMMs for installation in the replacement cache module. 4. Make sure both ends of the DIMM are firmly seated in the slot and
Compliance with these directives implies conformity to the following European Norms (in PVA (BA370 only) both retaining clips engage the DIMM.
3 9. Note the location for each DIMM in the old cache module and use
brackets are the equivalent international standards): Controller A
these locations when installing the DIMMs in the replacement cache

s 5. Repeat step 1 through step 4 for each DIMM.
4
EN 55022 (CISPR 22) Electromagnetic Interference Controller B
module.
s
EN 50082-1 (IEC 801-2, IEC 801-3, IEC 801-4) Electromagnetic Immunity Cache A
s EN 60950 (IEC 950) Product Safety 10. Press down on the DIMM retaining clips (see Figure 4, ) at both ends
6
5 Cache B CAUTION: Carefully align the cache module in the Cache A guide rails. Misaligning
of the DIMM being removed. the module might damage the backplane.
NOTICE CXO6283B
NOTE: To make pressing down on the DIMM retaining clips easier, consider using the
2000 Compaq Computer Corporation. 6. Insert the cache module into Cache A bay and engage the retaining
Figure 2. Cache module locations eraser end of a pencil or a small screwdriver.
COMPAQ, Compaq logo, and StorageWorks Reg. U.S. Pat. & Tm. Off. Microsoft, Windows, levers.
and Windows NT are trademarks of Microsoft Corporation. All other product names
Single-Controller Configurations
mentioned herein may be trademarks of their respective companies.
IMPORTANT: For Model 2100 and 2200 enclosures, omit step 7 and step 8. The ECB does
THE INFORMATION IN THIS PUBLICATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF not contain switches or use ECB Y-cables.
Use the steps in "Removing a Cache Module" and "Installing a Cache
ANY KIND. THE ENTIRE RISK ARISING OUT OF THE USE OF THIS INFORMATION REMAINS
Module" to replace a cache module. Replacing a cache module also
WITH RECIPIENT. IN NO EVENT SHALL COMPAQ BE LIABLE FOR ANY DIRECT,
involves transferring the cache memory from the failed cache module to the
CONSEQUENTIAL, INCIDENTAL, SPECIAL, PUNITIVE OR OTHER DAMAGES WHATSOEVER
CAUTION: The ECB must be disabled--the status LED is OFF--before connecting
(INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS replacement cache module.
the ECB Y-cable to the cache module. Failure to disable the ECB might damage the
INTERRUPTION OR LOSS OF BUSINESS INFORMATION), EVEN IF COMPAQ HAS BEEN
cache module.
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND WHETHER IN AN ACTION OF
CAUTION: Static electricity can easily damage a cache module or a DIMM. Wear a
CONTRACT OR TORT, INCLUDING NEGLIGENCE.
snug-fitting, grounded electrostatic discharge (ESD) wrist strap.
The limited warranties for Compaq products are exclusively set forth in the 7. If not already done, disable the ECB by pressing the battery disable
documentation accompanying such products. Nothing herein should be construed as switch until the status LED stops FLASHING--approximately five
constituting a further or additional warranty.
Removing a Cache Module seconds.
8. Connect the ECB Y-cable to the cache module.
Use the following steps to remove a cache module:
9. If not already connected, connect a PC or terminal to the controller
1. If the controller is operating, connect a PC or terminal to the controller
maintenance port for the replacement cache module.
maintenance port.
REPLACING AN HSx80 CACHE MODULE
If the controller is not operating, go to step 6.
Third Edition (December 2000)
Part Number: 196742-023 2. From the host console, stop all host activity to the controllers and
EK80CAHIM. C01 dismount the logical units in the subsystem.
Compaq Computer Corporation
See other side
7. Enter 3, Other cache module, from the Replace or Remove Options 7. Start FRUTIL with the following command:
10. Restart the controller by pressing the reset button.
menu to remove the "other controller" cache module.
RUN FRUTIL
NOTE: A controller restart can take as long as 60 sec, indicated by the temporary
8. Enter Y(es) to confirm the intent to remove the "other controller" cache
cycling of the port LEDs and a FLASHING reset button.
8. Enter N(o) to the question about replacing the cache battery.
module.
9. Enter 2, Install a controller or cache module, from the FRUTIL Main
IMPORTAN T: If the controller did not restart, use the following steps:
menu.
CAUTION: Wait for FRUTIL to quiesce the device ports--indicated by an "All
1. Press and hold the controller reset button.
2. Reseat the controller program card. device ports quiesced" message. Failure to allow the ports to quiesce might result 10. Enter 3, Other cache module, from the Install Options menu to install
3. Release the reset button. in data loss. Quiescing might take several minutes.
the "other controller" cache module.
11. Enter Y(es) to confirm the intent to install the "other controller" cache
11. From the CLI prompt, display details about the configured controller
module.
using the following command: IMPORTAN T: A countdown timer allows a total of two minutes to remove the cache
module. After two minutes, "this controller" will exit FRUTIL and resume operations. If this
SH OW THIS_CONTROLLER FULL
happens, return to step 4 and proceed. CAUTION: Wait for FRUTIL to quiesce the device ports--indicated by an "All
device ports quiesced" message. Failure to allow the ports to quiesce might result
NOTE: Step 12 is optional for HSJ80 controllers.
in data loss. Quiescing might take several minutes.
9. For Model 2100 and 2200 enclosures, disengage both retaining levers
12. [HSG60, HSG80, and HSZ80 only] Set the date and time using the
and remove the "other controller" cache module.
following command: The ECB must be disabled--the status LED is OFF--before disconnecting the ECB
10. For other enclosures: cable from the cache module. Failure to disable the ECB might result in cache
SET THIS_CONTROLLER TIME=dd-mmm-yyyy:hh:mm:ss
module damage.
a. Disengage both retaining levers and partially remove the "other
13. Mount the logical units on the host. controller" cache module--about halfway. Carefully align the cache module in the appropriate guide rails. Misalignment
14. If using a Windows NT or Windows 2000 platform, restart the server. might damage the backplane.
CAUTION: The ECB must be disabled--the ECB status light is OFF--before
15. Disconnect the PC or terminal from the controller maintenance port.
connecting the ECB Y-cable to the cache module. Failure to disable the ECB might
result in cache module damage. IMPORTANT: A countdown timer allows a total of two minutes to install the cache module.
Dual-Redundant Controller Configurations After two minutes, "this controller" will exit FRUTIL and resume operations. If this happens,
return to step 7 and proceed.
Use the steps in "Removing a Cache Module" and "Installing a Cache b. Disable the ECB by pressing the battery disable switch until the
Module" to replace a cache module. Replacing a cache module also status light stops blinking--approximately 5 seconds.
12. Follow on-screen instructions to install the replacement cache module
involves transferring the cache memory from the failed cache module to the
c. Rem ove the cache module: and to restart the "other controller."
replacement cache module.
1) Disconnect the ECB cable from the "other controller" cache NOTE: A controller restart can take as long as 60 sec, indicated by the temporary
module.
CAUTION: Static electricity can easily damage a cache module or a DIMM. Wear a cycling of the port LEDs and a FLASHING reset button.
snug-fitting, grounded ESD wrist strap.
2) Rem ove the cache module from the enclosure.
IMPORTANT: If the "other controller" did not restart, use the following steps:
11. Place the cache module on an antistatic bag or a grounded antistatic
Removing a Cache Module 1. Press and hold the "other controller" reset button.
mat. 2. Reseat the "other controller" program card.
3. Release the reset button.
Use the following steps to remove a cache module: 12. Enter N(o) to the question for a replacement cache module.
1. Connect a PC or terminal to the maintenance port of the operational FRUTIL will exit.
NOTE: In mirrored mode, FRUTIL initializes the mirrored portion of the replacement
controller.
cache module, checks for old data on the cache module, then restarts all device ports.
NOTE: To make pressing down on the DIMM retaining clips easier, consider using the
The controller connected to the PC or terminal becomes "this After the device ports restart, FRUTIL tests the cache module and the ECB. After the
eraser end of a pencil or a small screwdriver.
controller"; the controller for the cache module being removed test completes, the device ports are quiesced and a mirror copy of the cache module
) at both ends
13. Press down on the DIMM retaining clips (see Figure 4, data is created on the newly installed cache module.
becomes the "other controller."

of the DIMM being removed.
13. Enable failover and reestablish the dual-redundant configuration with
2. For HSJ80 controllers only:

14. Gently remove the DIMM from the DIMM slot and place the DIMM one of the following commands:
a. Prefer all units to "this controller" with the following command: on an antistatic bag or a grounded antistatic mat.
SET FAILOVER COPY=THIS_CONTROLLER
SET unit-number PREFERRED_PATH=THIS_CONTROLLER 15. Repeat step 13 and step 14 for each DIMM. or
b. Disable the computer interconnect (CI) bus paths with the SET MULTIBUS_FAILOVER COPY=THIS_CONTROLLER
Installing a Cache Module
following commands:
This command copies the subsystem configuration from "this
Use the following steps to install a cache module.
SET OTHER_CONTROLLER NOPORT_1_PATH_A controller" to the "other controller."
SET OTHER_CONTROLLER NOPORT_1_PATH_B
14. If desired, verify the failover configuration with the following
IMPORTAN T: Both cache modules must contain the same memory configuration. Install
SET OTHER_CONTROLLER NOPORT_2_PATH_A
command:
the DIMMs in the same slots in the replacement cache module as removed from the failed
SET OTHER_CONTROLLER NOPORT_2_PATH_B
cache module. SHOW THIS_CONTROLLER FULL
NOTE: The display of an error message, indicating that the subsystem was unable to
) 15. For HSJ80 controllers:
run down certain units on the "other controller," is a timing issue. If this occurs, repeat 1. Insert each DIMM (see Figure 4, straight into the appropriate slot
these SET commands. a. Enable CI bus paths with the following commands:
of the cache module, ensuring that the notches in the DIMM align with
the tabs in the slot.
3. Disable failover and take the controllers out of the dual-redundant SET THIS_CONTROLLER PORT_1_PATH_A
configuration with one of the following commands: SET THIS_CONTROLLER PORT_1_PATH_B
2. Press the DIMM gently into the slot until seated at both ends.
for the DIMM. SET THIS_CONTROLLER PORT_2_PATH_A
SET NOFAILOVER 3. Engage the two retaining clips
SET THIS_CONTROLLER PORT_2_PATH_B
or
4. Make sure both ends of the DIMM are firmly seated in the slot and
SET NOMULTIBUS_FAILOVER b. Rem ove the preferred path on all units with the following
both retaining clips engage the DIMM.
command:
4. From the operational controller, start the field replacement utility
5. Repeat step 1 through step 4 for each DIMM.
(FRUTIL) with the following command: SET unit-number NOPREFERRED_PATH
6. If not already connected, connect a PC or terminal to the operational
RUN FRUTIL 16. Disconnect the PC or terminal from the controller maintenance port.
controller.
5. Enter N(o) to the question about replacing the cache battery. The controller connected to the PC or terminal becomes "this
This completes the hardware installation.
controller"; the controller for the cache module being installed
6. Enter 1, Replace or remove a controller or cache module, from the
becomes the "other controller."
FRUTIL Main menu.
196742-023

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