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Compaq AA-RHGWC-TE User Manual

Page 185

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6.7.2 Procedure to Convert from Transparent to Multiple-bus Failover

Mode

To change from transparent failover to multiple-bus failover mode by
resetting the unit offsets and modifying the systems’ view of the storage
units, follow these steps:

1.

Shut down the operating systems on all host systems that are accessing
the HSG80 controllers you want to change from transparent failover to
multiple-bus failover mode.

2.

At the HSG80, set multiple-bus failover as follows. Note that before
putting the controllers in multiple-bus failover mode, you must remove
any previous failover mode:

HSG80> SET NOFAILOVER

HSG80> SET MULTIBUS_FAILOVER COPY=THIS

____________________

Note

_____________________

Use the controller known to have the good configuration
information.

3.

Execute the SHOW CONNECTION command to determine which
connections have a nonzero offset as follows:

HSG80> SHOW CONNECTION

Connection

Unit

Name

Operating system

Controller

Port

Address

Status

Offset

!NEWCON49

TRU64_UNIX

THIS

2

230813

OL this

100

HOST_ID=1000-0000-C920-DA01

ADAPTER_ID=1000-0000-C920-DA01

!NEWCON50

TRU64_UNIX

THIS

1

230813

OL this

0

HOST_ID=1000-0000-C920-DA01

ADAPTER_ID=1000-0000-C920-DA01

!NEWCON51

TRU64_UNIX

THIS

2

230913

OL this

100

HOST_ID=1000-0000-C920-EDEB

ADAPTER_ID=1000-0000-C920-EDEB

!NEWCON52

TRU64_UNIX

THIS

1

230913

OL this

0

HOST_ID=1000-0000-C920-EDEB

ADAPTER_ID=1000-0000-C920-EDEB

!NEWCON53

TRU64_UNIX

OTHER

1

230913

OL other

0

HOST_ID=1000-0000-C920-EDEB

ADAPTER_ID=1000-0000-C920-EDEB

!NEWCON54

TRU64_UNIX

OTHER

1

230813

OL other

0

HOST_ID=1000-0000-C920-DA01

ADAPTER_ID=1000-0000-C920-DA01

!NEWCON55

TRU64_UNIX

OTHER

2

230913

OL other

100

HOST_ID=1000-0000-C920-EDEB

ADAPTER_ID=1000-0000-C920-EDEB

!NEWCON56

TRU64_UNIX

OTHER

2

230813

OL other

100

HOST_ID=1000-0000-C920-DA01

ADAPTER_ID=1000-0000-C920-DA01

!NEWCON57

TRU64_UNIX

THIS

2

offline

100

Using Fibre Channel Storage 6–59