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EK-Z8CAH-IN-A01

May 2000

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Document:	Installing an HSZ80 Cache Module
Order Number:	EK-Z8CAH-IN
Revision:	A01
Pages:	3
Original Filename:

OCR Text

Installing an HSZ80 Cache Module
Follow these instructions to replace a cache module in a
single controller or dual-redundant controller
configuration. See the HSZ80 Array Controller ACS
Version 8.x User’s Guide for instructions on upgrading a
subsystem to a dual-redundant controller configuration.

Figure 1. HSZ80 Cache Module

is “this controller;” the controller whose cache module
you’re replacing is the “other controller.”

2.
4

Disable failover and take the controllers out of their dualredundant configuration with the following command:
SET NOFAILOVER

3.
1

Start FRUTIL with the following command:
RUN FRUTIL

4.
2

Choose option 1, Replace or remove a controller or cache
module, from the FRUTIL Main Menu:
FRUTIL Main Menu:

3 2x

1. Replace or remove a controller or cache module

1
2
3
4
5

Cache-memory power LED
External cache battery (ECB) cable
Retaining lever
Backplane connector
DIMM

2. Install a controller or cache module
3. Replace other cache module battery
4. Replace a PVA module
5. Replace an I/O module
6. Set battery life to new
7. Exit

Figure 2. Location of Cache Modules

Enter choice: 1, 2, 3, 4, 5, 6, or 7 -> 1

EMU

PVA

Choose option 3, Other cache module, from the Replace or
Remove Options menu to remove the other cache module:
Replace or remove Options:

Controller A

1. Other controller and cache module

Controller B

2. Other controller module
3. Other cache module

Memory module A

Memory module B

4. Exit
Enter choice: 1, 2, 3, or 4 -> 3

CXO6283A

Replacing a Cache Module in a DualRedundant Controller Configuration

Confirm that you want to remove the other cache module.
FRUTIL displays the following:
Remove the slot A (or B) cache module? Y/N

Follow these steps to replace a cache module.

Type Y(es) and press return.

NOTE: The new cache module must contain the same amount of
memory as the module it’s replacing.

Wait for FRUTIL to quiesce the device ports. After the ports
have been quiesced (this may take several minutes), FRUTIL
displays the following:

Removing a Cache Module in a Dual-Redundant
Controller Configuration
Follow these steps to remove a cache module.

All device ports quiesced.

use, from the cache module.

Connect a terminal to the operational controller’s
maintenance port. The controller to which you’re connected

Remove the slot B cache module within x minutes, xx
seconds. Then disconnect the external battery, if in

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EK–Z8CAH–IN. A01

NOTE: A countdown timer allows a total of two minutes to
remove the cache module. If you exceed the two minutes, “this
controller” will exit FRUTIL and resume operations.

Install Options:
1. Other controller and cache module

CAUTION: An electrostatic discharge (ESD) can easily damage
a cache module. Wear an ESD wrist strap on your wrist, make
sure the strap fits snugly, and attach the ESD strap's grounding
lead to a verified earth ground.
9.

2. Other controller module
3. Other cache module
4. Exit
Enter choice: 1, 2, 3, or 4 -> 3

Disengage the two retaining levers and remove the other
cache module, then place the cache module onto a grounded
antistatic mat.

CAUTION: The ECB must be disabled—the status light is not lit
oris not blinking—before disconnecting the ECB cable from the
cache module. Failure to do so could result in the cache module
being shorted out.

Type Y(es) and press return.

Wait for FRUTIL to quiesce the ports. After the ports have
been quiesced (this may take several minutes), FRUTIL
displays the following:
All device ports quiesced.

NOTE: Acountdown timer allows a total of two minutes to install
the cache module. If you exceed the two minutes, “this
controller” will exit FRUTIL and resume operations.

11. Disconnect the external cache battery (ECB) cable from the
other cache module, and place the cache module into an
approved antistatic bag.

12. Once the cache module is removed, FRUTIL displays the
following:
Restarting all device ports. Please wait...

.
Do you have a replacement cache module? Y/N

Installing a Cache Module in a Dual-Redundant
Controller Configuration
Follow these steps to install a cache module.

Connect a local terminal to the operational controller. The
controller to which you’re connected is “this controller;” the
controller whose cache module you’re installing is the “other
controller.”

Connect the ECB cable to the new cache module. Follow the
VHDCI Cable Precautions.

10. Insert the new cache module into its slot and engage its
retaining levers.
11. Enable failover, and re-establish the dual-redundant
controller configuration with the following command:

Start FRUTIL with the following command:

SET FAILOVER COPY=THIS_CONTROLLER

RUN FRUTIL

If not already done, disable the ECB to which you’re
connecting the new cache module by pressing the battery
disable switch until the status light stops blinking—about
five seconds.

CAUTION: The ECB must be disabled—the status light is not lit
or is not blinking—before connecting the ECB cable to the cache
module. Failure to do so could result in the ECB being shorted
out.

NOTE: If you selected Y(es) in step 12 in the removal
procedure—for a continuous removal and installation—go to
step 5.

Confirm that you want to install the other cache module.
FRUTIL displays the following:
Insert the slot B cache module? Y/N

10. Disable the ECB by pressing the battery disable switch until
the status light stops blinking—about five seconds.

Choose option 3, Other cache module, from the Install
Options menu to install the other cache module:

This command copies the subsystem’s configuration from
“this controller” to the “other controller.”

Choose option 2, Install a controller or cache module, from
the FRUTIL Main Menu:
FRUTIL Main Menu:
1. Replace or remove a controller or cache module
2. Install a controller or cache module
3. Replace other cache module battery
4. Replace a PVA module
5. Replace an I/O module
6. Set battery life to new
7. Exit
Enter choice: 1, 2, 3, 4, 5, 6, or 7 -> 2

Replacing the Cache Module in a
Single Controller Configuration

CAUTION: The ECB must be disabled—the status light is not lit
or is not blinking—before connecting the ECB cable to the cache
module. Failure to do so could result in the ECB being shorted
out.

Follow these steps to replace the cache module.
Removing the Cache Module in a Single Controller
Configuration
Follow these steps to remove the cache module.
1.

From the host console, dismount the logical units in the
subsystem. If you are using a Windows NT platform, shut
down the PC.

If the controller is operating, connect a terminal to the
controller’s maintenance port.

Run FMU to obtain the last failure codes, if desired.

Connect the ECB cable to the new cache module. Follow the
VHDCI Cable Precautions.

If not already connected, connect a terminal to the
controller’s maintenance port.

Restore power to the subsystem. The ECB automatically reenables itself to provide backup power to the cache module.
The controller restarts with the configuration that resides in
its nonvolatile memory.

Mount the logical units on the host. (If you are using a
Windows NT platform, restart the PC.)

Set the subsystem date and time.

If the controller is not operating, go to step 5.
4.

Shut down the controller with the following command:
SHUTDOWN THIS_CONTROLLER

When the controller shuts down, its reset button and the first
three LEDs are lit continuously.
5.

Turn off the power to the subsystem.

CAUTION: An electrostatic discharge (ESD) can easily damage
a cache module. Wear an ESD wrist strap on your wrist, make
sure the strap fits snugly, and attach the ESD strap’s grounding
lead to a verified earth ground.
6.

Disable the ECB by pressing the battery disable switch until
the status light stops blinking—about five seconds.

CAUTION: The ECB must be disabled—the status light is not lit
or is not blinking—before disconnecting the ECB cable from the
cache module. Failure to do so could result in the cache module
being shorted out.
7.

Disconnect the ECB cable from the cache module.

Disengage the two retaining levers, and remove the cache
module, and place the cache module into an approved
antistatic bag or onto a grounded antistatic mat.

Installing the Cache Module in a Single Controller Configuration
Follow these steps to install the cache module.
CAUTION: An electrostatic discharge (ESD) can easily damage
a cache module. Wear an ESD wrist strap on your wrist, make
sure the strap fits snugly, and attach the ESD strap's grounding
lead to a verified earth ground.
Make sure you align the cache module in the appropriate card
cage rails. If you do not align the modules appropriately, damage
to the backplane can occur.
1.

Insert the new cache module into its slot and engage its
retaining levers.