Digital Equipment StorageWorks HSZ70 Instruction Manual

The DIGITAL logo is a trademark of Digital Equipment Corporation.
Copyright 1997 Digital Equipment Corporation
EK–70CTL–IN. A01
Installing an HSZ70 Array Controller
Follow these instructions to replace a controller in a
single or dual-redundant configuration. See the
HSZ70
Array Controller HSOF Version 7.0 Service Manual
for
instructions on upgrading a subsystem to a
dual-redundant configuration.
Figure 1. HSZ70 Array Controller
VHDCI Cable Precautions
All of the cables to the controller, cache module, and external
cache battery (ECB) use very-high density cable interconnect
connectors (VHDCI). These connectors have extraordinarily
small mating surfaces that can be adversely affected by dust and
movement. Follow these precautions when you’re connecting
VHDCI cables:
 Clean the mating surfaces with a blast of clean air.
 Mate the connectors by hand, then tighten the retaining
screws to 1.5 inch-pounds—approximately 1/4 additional
turn after the connectors have fully mated.
 Test the assembly by gently pulling on the cable, which
should not produce visible separation.
Dual-Redundant Configurations
To remove the controller...
1. Connect a local terminal to the operational controller. The
controller to which you’re connected is “this controller;” the
controller that you’re removing is 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, the field-replacement utility, with the
following command:
RUN FRUTIL
4. Choose option 1 from the FRUTIL Main Menu to go to the
Removal Options menu.
5. Choose option 2 from the Removal Options menu to remove
the “other controller.”
6. Confirm that you want to remove the “other controller.”
7. Wait for FRUTIL to quiesce the ports.
8. Remove the trilink connector from the “other controller” but
don’t disconnect the bus cables from the trilink connector.
9. Disengage the two retaining levers and remove the “other
controller.”
10. Remove the “other controller’s” ESD cover and program
card. Save these for the new controller.
To install the new controller...
1. Indicate to FRUTIL that you’re ready to insert the new
controller.
2. Ensure that the program card is not in the new controller and
insert the new controller into its slot. Engage its retaining
levers.
3. Wait for FRUTIL to terminate, then connect the trilink
connector to the new controller.
4. Restart the new controller with the following command:
RESTART OTHER_CONTROLLER
1 Backplane connectors
2 Program-card slot
3 Program-card ejection button
4 Program card
5ESDcover
6 Trilink connector
7 Lever for removing, installing, and retaining controller.
8 Operator control panel (OCP)
9 Local-connection port
10 DECconnect office cable
11 RJ-11 adapter
12 RJ-11 extension cable
13 PC serial-port adapter
1 2 3 4 5 6
1
12
13
3
4
5
6
89
10 11
7
2
2x
3x

5. Insert the program card into the new controller. The
controller restarts automatically.
6. Replace the ESD cover.
7. Enable failover and re-establish the dual-redundant
configuration with the following command:
SET FAILOVER COPY=THIS_CONTROLLER
This command copies the subsystem’s configuration from
“this controller” to the “other controller.”
Single Configurations
To remove the controller...
1. From the host console, dismount the storage units in the
subsystem.
2. If the controller is operating, connect a local terminal to the
controller to obtain the last failure codes if desired.
Otherwise, go to step 8.
3. Start the Fault Management Utility (FMU) with the
following command:
RUN FMU
4. Display the instance and last failure codes with the following
command:
SHOW LAST_FAILURE ALL
5. Record the codes in the order they appear.
6. Exit FMU with the following command:
EXIT
7. 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.
8. Turn off the power to the subsystem.
9. Remove the ESD cover and program card. Save them for the
new controller.
10. Remove the trilink connector but don’t disconnect the bus
cables from the trilink connector.
11. Disengage the two retaining levers and remove the
controller.
To install the new controller...
1. Insert the new controller into its slot and engage its retaining
levers.
2. Connect the trilink connector to the new controller.
3. Insert the program card into the new controller and replace
the ESD cover.
4. Restore power to the subsystem. If the subsystem contains a
device that was initialized with the SAVE_
CONFIGURATION switch, the controller automatically
loads the subsystem’s configuration from that device.
Otherwise, you’ll have to reconfigure the controller as
described in the HSZ70 Array Controller HSOF Version 7.0
Configuration Manual.
5. Install any patches that you had installed on the previous
controller.
6. Mount the storage units on the host.