Hp XP Continuous Access Software Uživatelský manuál stáhnout pdf (Strana 283)

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Configuration file examples 283

The instance 1 configuration file in the preceding figure specifies that:

• Three BC pairs are recognized.

• The BC pairs are intermediate S-VOL/P-VOLs, because the TID/LUN

combinations are all the same.

Connecting CA and BC

You can use three configuration files to describe a CA/BC cascaded

configuration, as shown in the following figure.

The configuration file in the center (HORCMINST for CA/BC) can be

interpreted as follows:

• The first line is ambiguous as to whether the pair is CA or BC because

the MU# is blank.

• The second line shows that the MU# is 0, meaning BC. The

Port/TID/LUN is the same as on the first line, so you know that the top

line refers to a CA pair.

• Since all three lines use the same Port/TID/LUN, you know that the

pair is the intermediate part of a CA, cascaded BC configuration.

Another hint that oradb is a CA pair is that its remote pair serving host is a

host other than HOST2, which serves this RM instance.

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