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HP NonStop Shadowbase Command Definitions

Collector Command Descriptions

HP NonStop Shadowbase Command Reference Manual—785421-002

2.000 ON OFF ON Yes

Enables or disables automatic stopping of the Collector process if it falls

behind in audit trail reading. This is an optional parameter. The default is

ON. When set to ON, it will ensure that the Collector does not negatively

affect the functioning of TM/MP on your system. Before AUDMON stops

the Collector(s), EMS warning messages will be issued indicating that a

potential problem may be developing. When the Collector and its

associated Consumers are stopped, an EMS message is also emitted.

ADTAUXMASK value

Initial Changed

Version Version Values Default Value Specifications Alter

3.700 111111111111111 each byte 0 or 1 No

This is used to identify the auxiliary audit trail files, which are to be read by

the Collector. The parameter is 15 bytes long and each byte is entered as

a zero (0) or one (1) to respectively disable or enable access to an

auxiliary. By default all 15 bytes are set to 1 meaning that the Collector

will read all auxiliary audit trail files (i.e.,i.e., aux01 through aux15) if

present in the TMF configuration.

As an example, suppose you have aux01 and aux02 configured in TMF,

but only want a Collector to read aux02 because there are tables and files

on data volumes associated with aux02 that you want replicated by HP

Shadowbase. You would enter the following command so that the

Collector only reads aux02:

SET COLL ADTAUXMASK 010000000000000

Restricting the reading of auxiliary audit trail files can significantly reduce

the amount of data that a Collector needs to process, and can dramatically

“speed up” its processing of master audit trail events. However, you need

to be careful that restricting the reading of these AUX trails won’t skip data

that you want to replicate (e.g., if $DATA is saved by TMF into auxiliary

audit trail file AUX02, and you restrict reading AUX02, you will never be

able to replicate this data). Similarly, you need to be careful to place

certain HP Shadowbase configuration files, such as the TRANSLOGs in a

bi-directional environment, onto audit trails that the Collector will read

(i.e.,i.e., do not place the TRANSLOGs on auxiliary audit trail files that you

skip).

Note: All Collectors read the master audit trail (this contains the pointers

to the auxiliary audit trail files, as well as the transaction termination

records (such as commit or abort)).

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HP Integrity NonStop H-Series Guida Utente Pagina 69