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Converting a Single-System Conﬁguration to a DSSI VAXcluster Conﬁguration

C.2 Conversion Procedure

Figure C–10 OCP Indicators and Controls

Write

Protect

Ready Fault

DSSI

ID

Write

Protect

Ready Fault

DSSI

ID

d

igi

t

al

SHR_X1128_89

1

2

C.2.5 Bringing a DSSI VAXcluster Conversion On-Line

Refer to the KFMSA Module Installation and User Manual for the section on

conﬁguring a DSSI VAXcluster conﬁguration.

Note that you will be instructed to perform the following tasks:

• Boot VAX/DS on the host systems.

• Attach the KFMSA modules in each system.

• Select each KFMSA module in each system.

• Run EVCXE or EVCXF.

• Modify certain parameters in the disk ISEs.

• Ensure that all modiﬁed parameters are recorded as permanent values.

• Verify the communication path with all ISEs on the DSSI buses.

After all of the above have been accomplished successfully, return the systems

and the DECarray to normal operating mode.

C–20 Converting a Single-System Conﬁguration to a DSSI VAXcluster Conﬁguration