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HP NonStop Shadowbase Command Definitions

Collector Command Descriptions

HP NonStop Shadowbase Command Reference Manual—785421-002

This defines the time that the Collector is to wait before outputting an EMS

message to indicate that the Collector restart position is lagging behind.

The valid range is 0 through 32767 seconds. The default is 900 (15

minutes). If the Collector lags behind and an EMS message is issued and

then it catches back up and then lags behind again shortly thereafter, it

won't issue another behind EMS until CHKPTWARNRATE time has

passed by. Note that it will issue a message to indicate that it has caught

up during the next RESTARTFILE refresh after CHKPTTIME has passed

by. In v4.090 the maximum value was increased from 32767 to

2147483647 (from a 16-bit value to a 32-bit value).

CHKPTWARNTDIFF <number of seconds>

Initial Changed

Version Version Values Default Minimum Maximum Alter

3.960C 4.090 8100 0 disable 2147483647 Yes

This is the lag time used by the Collector to determine if the restart

position is lagging behind the current audit trail read position. The restart

position is determined to be lagging behind if the difference between the

time of last read audit trail record and the time of the current audit trail

restart position is equal to or greater than CHKPTWARNTDIFF.

As of release v3.980B the CHKPTWARNTDIFF parameter minimum value

can now be set to 0. This will disable the check the Collector performs to

insure that the normal restart position is advancing. Thus the valid range

has changed from 1 through 32767 seconds, to 0 through 2147483647

seconds. The default is 8100 seconds (2.25 hours).

In v4.090 the maximum value was increased from 32767 to 2147483647

(from a 16-bit value to a 32-bit value).

Note: That the EMS messages associated with this checking have been

changed to “critical”.

Note: That long-running transactions could result in EMS messages being

issued if the CHKPTWARNTDIFF is set lower than the time it takes

for the transaction to complete.

CHKPTWARNTDIFFB <number of seconds>

Initial Changed

Version Version Values Default Minimum Maximum Alter

3.980B 4.090 8100 0 disable 2147483647 Yes

For a bi-directional replication environment this is the lag time used by

the Collector to determine if the restart position is lagging behind the

current audit trail read position. The restart position is determined to be

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HP Integrity NonStop H-Series Guía de usuario Pagina 81