Compaq Storageworks ECB Instruction Manual

INSTALLING AN
EXTERNAL CACHE
BATTERY (ECB)
About This Card
The HSZ70, the HSG80, the HSJ80, and the HSZ80 use the same
ECB. This document contains instructions to replace an ECB in an
HSZ70 HSOF Version 7.xArray Controller, an HSG80 ACS Version
8.xArray Controller, an HSJ80 ACS Version 8.5J Array Controller,
and an HSZ80 ACS Version 8.3 Array Controller.
NOTE: For instructions on upgrading a single-controller configuration to a
dual-redundant controller configuration, see the appropriate DIGITAL
StorageWorksTM HSZ70 Array Controller HSOF Version7.x Service Manual,
DIGITAL StorageWorks HSG80 Array Controller ACS Version 8.2 User Guide,
CompaqTM StorageWorks HSJ80 Array Controller ACS V8.5J Maintenance and
Service Guide, Compaq StorageWorks HSG80 Array Controller ACS Version 8.x
Maintenance and Service Guide, or Compaq StorageWorks HSZ80 ACS Version
8.3 Maintenance and Service Guide.
General Information
The type of ECB used depends upon the controller enclosure type.
Figure 1 and Figure 2 provide general information about the cache
modules used with many Compaq StorageWorks controller
enclosures.
Figure 1. Single ECB for single-controller configurations
TM
1 Battery disable switch
2 Status LED
3 ECB Y-cable
CXO5715B
CACHE
POWER
STATUS
SHUTOFF
1
3
~
2
European Union Notice
Products with the CE Marking comply with both the EMC Directive (89/336/EEC) and
the Low Voltage Directive (73/23 EEC) issued by the Commission of the European
Community. Compliance with these directives implies conformity to the following
European Norms (in brackets are the equivalent international standards):
■EN 55022 (CISPR 22) Electromagnetic Interference
■EN 50082-1 (IEC 801-2, IEC 801-3, IEC 801-4) Electromagnetic Immunity
■EN 60950 (IEC 950) Product Safety
NOTICE
© 2000 Compaq Computer Corporation. Printed in the U.S.A.
COMPAQ, Compaq logo, and StorageWorks Reg. U.S. Pat. & Tm. Off. Windows NT is a
trademark of Microsoft Corporation. All other product names mentioned herein may
be trademarks or registered trademarks of their respective companies.
The information in this publication is subject to change without notice and is provided
“AS IS” WITHOUT WARRANTY OF ANY KIND. THE ENTIRE RISK ARISING OUT OF THE
USE OF THIS INFORMATION REMAINS WITH RECIPIENT. IN NO EVENT SHALL COMPAQ
BE LIABLE FOR ANY DIRECT, CONSEQUENTIAL, INCIDENTIAL, SPECIAL, PUNITIVE OR
OTHER DAMAGES WHATSOEVER (INCLUDING WITHOUT LIMITATION, DAMAGES FOR
LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION OR LOSS OF BUSINESS
INFORMATION), EVEN IF COMPAQ HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES. THE FOREGOING SHALL APPLY REGARDLESS OF THE NEGLIGENCE OR
OTHER FAULT OF EITHER PARTY AND REGARDLESS OF WHETHER SUCH LIABILITY
SOUNDS IN CONTRACT, NEGLIGENCE, TORT, OR ANY OTHER THEORY OF LEGAL
LIABILITY, AND NOTWITHSTANDING ANY FAILURE OF ESSENTIAL PURPOSE OF ANY
LIMITED REMEDY.
The limited warranties for Compaq products are exclusively set forth in the
documentation accompanying such products. Nothing herein should be construed as
constituting a further or additional warranty.
INSTALLING AN EXTERNAL CACHE BATTERY (ECB)
Second Edition (February 2000)
Part Number: EK–80ECB–IA. B01
Compaq Computer Corporation
Open Card Completely Before
Beginning Installation Procedures

Page 2
Figure 2. Dual ECB for dual-redundant controller configurations
Model 2200 controller enclosures use a different type of ECB that
does not require an ECB Y-cable (see Figure 3) and contain four ECB
bays. Two ECB bays support cache module A (A1 and A2) and two
bays support cache B (B1 and B2)—see this relationship in Figure 4.
Figure 3. ECB status LEDs
Figure 4. ECB and cache module locations in a Model 2200 enclosure
IMPORTANT: When replacing an ECB (see Figure 5), match the vacant ECB bay with
the cache module it supports. This bay will always be next to the failed ECB.
Figure 5. Removing an ECB that supports cache module B in a Model 2200
enclosure
1 Battery disable switch
2 Status LED
3 ECB Y-cable
4 Faceplate and controls for second battery
1 ECB charged LED
2 ECB charging LED
3 ECB fault LED
CXO5713B
CACHE
POWER
STATUS
SHUTOFF
CACHE
POWER
STATUS
SHUTOFF
3
~
4
2
1
CXO6358A
1
2
3
1 B1 supports cache B
2 B2 supports cache B
3 A2 supports cache A
4 A1 supports cache A
CXO6864A
4
21 3
Controller A
Controller B
Cache A Cache B
CXO5608A
CXO6922B

Page 3
HSZ70 Single Controller Configurations
Only use this procedure for the following configuration:
■HSZ70 HSOF Version 7.x Single Controller
Use the following steps and Figure 1 or Figure 2 to replace an ECB:
1. If a controller is operating, connect a PC or terminal to the
controller maintenance port supporting the old ECB cache
module.
If the controller is not operating, go to step 3.
2. Shut down “this controller”with the following command:
SHUTDOWN THIS_CONTROLLER
When the controller shuts down, the reset button
1 and the first
three LEDs
2 turn ON(see Figure 6). It might take several
minutes for this indication to appear, depending on the amount of
data that needs to be flushed from the cache module.
Figure 6. Controller reset button and first three LEDs
3. Turn OFF subsystem power.
NOTE: If an empty bay is not available, place the replacement ECB on top of the
enclosure.
4. Insert the replacement ECB into its bay or near the ECB being
removed.
CAUTION: The ECB Y-cable has a 12-volt and a 5-volt pin. Improper
handling or misalignment when connecting or disconnecting could cause
these pins to contact ground, resulting in cache module damage.
5. Connect the open end of the ECB Y-cable to the replacement
ECB.
6. Turn ONsubsystem power.
The controller automatically restarts.
CAUTION: DO NOT disconnect the old ECB Y-cable until the replacement
ECB is fully charged. If the replacement ECB status LED is:
■ON, the ECB is fully charged.
■FLASHING, the ECB is charging.
The subsystem can operate regardless of the old ECB status, but do not
disconnect the old ECB until the replacement ECB is fully charged.
7. Once the replacement ECB status LED turns ON, disconnect the
ECB Y-cable from the old ECB.
8. Remove the old ECB and place it in an antistatic bag or on a
grounded antistatic mat.
9. If the replacement ECB was not placed in an available bay, insert
the ECB into the vacant bay of the old ECB.
10. If a PC or terminal cable was connected in step 1, disconnect it
from the controller maintenance port.
HSZ70 Dual Controller Configurations
Only use this procedure for the following configuration:
■HSZ70 HSOF Version 7.x Dual-Redundant Controller
Use the following steps and Figure 1 or Figure 2 to replace an ECB:
1. Connect a PC or terminal to the maintenance port of the controller
with the operational ECB.
The controller connected to becomes “this controller;”the
controller for the ECB being removed becomes the “other
controller.”
2. Disable failover and take the controllers out of their
dual-redundant configuration with the following command:
SET NOFAILOVER
3. Start FRUTIL with the following command:
RUN FRUTIL
4. Choose option 3, Replace other cache module battery.
5. Follow on-screen instructions to confirm ECB replacement.
NOTE: If an empty bay is not available, place the replacement ECB on top of the
cabinet or enclosure until the defective ECB is removed.
6. Insert the replacement ECB into its bay or near the ECB being
removed.
CAUTION: DO NOT disconnect the old ECB until the replacement ECB is fully
charged. If the replacement ECB status LED is:
■ON, the ECB is fully charged.
■FLASHING, the ECB is charging.
The subsystem can operate regardless of the old ECB status, but do not
disconnect the old ECB until the replacement ECB is fully charged.
The ECB Y-cable has a 12-volt and a 5-volt pin. Improper handling or
misalignment when connecting or disconnecting could cause these pins to
contact ground, resulting in cache module damage.
7. Follow on-screen instructions to connect the replacement ECB.
8. Follow on-screen instructions to restart the “other controller.”
9. Re-establish the dual-redundant configuration with the following
command:
SET FAILOVER COPY=THIS_CONTROLLER
This command copies the subsystem configuration from “this
controller”to the “other controller.”
10. If desired, verify the failover configuration with the following
command:
SHOW THIS_CONTROLLER FULL
11. Once the replacement ECB status LED turns ON, disconnect the
ECB Y-cable from the old ECB.
12. For dual ECB replacement:
■If the other cache module is also to be connected to the new
dual ECB, connect the PC or terminal to the “other controller”
maintenance port.
The connected controller now becomes “this controller.”
■Repeat step 2 through step 11.
13. Place the old ECB in an antistatic bag or on a grounded antistatic
mat.
14. Disconnect the PC or terminal from the controller maintenance
port.
123456
CXO6991A
2
1

Page 4
HSG80, HSJ80 and HSZ80 Controller
Configurations
Use this procedure for the following configurations:
■HSG80 ACS Version 8.2 Single Controller
■HSG80 ACS Version 8.2 Dual-Redundant Controller
■HSG80 ACS Version 8.3 Single Controller
■HSG80 ACS Version 8.3 Dual-Redundant Controller
■HSG80 ACS Version 8.4 Single Controller
■HSG80 ACS Version 8.4 Dual-Redundant Controller
■HSG80 ACS Version 8.5 Single Controller
■HSG80 ACS Version 8.5 Dual-Redundant Controller
■HSJ80 ACS Version 8.5J Single Controller
■HSJ80 ACS Version 8.5J Dual-Redundant Controller
■HSZ80 ACS Version 8.3 Single Controller
■HSZ80 ACS Version 8.3 Dual-Redundant Controller
Use the following steps and Figure 1 through Figure 5, as appropriate,
to replace an ECB:
1. Connect a PC or terminal to the maintenance port of the controller
with the defective ECB.
The controller connected to becomes “this controller.”
2. For Model 2200 enclosures, enter the following command to
verify that system time is set:
SHOW THIS_CONTROLLER FULL
If system time is not set or current, enter the current time using the
following command:
SET THIS_CONTROLLER TIME=dd-mmm-yyyy:hh:mm:ss
IMPORTANT: An internal clock monitors the life of the ECB battery. This clock must
be reset after replacing a ECB.
3. Start FRUTIL with the following command:
RUN FRUTIL
4. For Model 2200 enclosures:
a) Follow on-screen instructions to replace the ECB.
CAUTION: Make sure to install the replacement ECB in a bay that supports
the same cache module as the current ECB being removed (see Figure 4).
Remove the blank bezel from this replacement bay and reinstall the blank
bezel in the bay vacated by the current ECB. Failure to reinstall the blank
bezel might cause an overtemperature condition and damage the enclosure.
NOTE: Install a Battery Service Label on the replacement ECB prior to installing
it in the enclosure. This label indicates the installation date (MM/YY) for the
replacement ECB.
b) Install a Battery Service Label on the replacement ECB as
described by the Compaq StorageWorks ECB Battery Service
Label Placement installation card.
c) Remove the blank bezel from the appropriate bay and install
the replacement ECB.
IMPORTANT: Do not remove the old ECB until the ECB charged LED on the
replacement ECB turns ON(see Figure 3, 1 ).
d) Remove the old ECB and install the blank bezel in this bay.
5. For other enclosures:
a) Follow on-screen instructions concerning availability and
replacement questions for the ECB.
NOTE: If an empty bay is not available, place the replacement ECB on top of the
enclosure or at the bottom of the rack.
b) Insert the replacement ECB into its bay or near the ECB being
removed.
c) Follow on-screen instructions to connect the ECB.
d) Disconnect the ECB Y-cable from the old ECB and press
Enter/Return.
IMPORTANT: Wait for FRUTIL to terminate.
e) For single ECB replacement:
1) Removetheold ECB and place it in an antistatic bag oron
a grounded antistatic mat.
2) If the replacement ECB was not placed within an
available bay, install the ECB into the vacant bay of the
old ECB.
6. For dual ECB replacement:
1) If the other cache module is also to be connected to the
new dual ECB, connect the PC or terminal to the “other
controller”maintenance port.
2) The connected controller now becomes “this controller.”
3) Repeat step 3 through step 5.
7. Disconnect the PC or terminal from the controller maintenance
port.
This completes the hardware installation.