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HP NonStop Shadowbase Command Definitions

Queue Manager Command Descriptions

HP NonStop Shadowbase Command Reference Manual—785421-002

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having the writes impact your application. If the disks cannot be dedicated,

consider setting the QBUFFEREDIO parameter to off.

QWRITEQUEDEPTH <number>

Initial Changed

Version Version Values Default Minimum Maximum Alter

4.090 3 2 100 No

This is the number of56Kbyte write buffers the process will maintain for

writing to the disk. The Queue Manager will not reply to the message from

the Collector until the message has been buffered for writing to disk. At

the maximum message size, each buffer will hold just under 2 messages.

Since the Queue Manager will typically receive data slower than it can

write to disk, the default of 3 buffers should usually be sufficient.

RESTARTFILE [ \system.$volume.subvolume ] restart_fname

Initial Changed

Version Version Values Default Value Specifications Alter

4.090 None Valid file name No

This parameter identifies the name of the file, which provides the restart

position within the queue for sending data to the Consumer and the

position the Collector should use to start audit trail reading. When starting

up, the Queue Manager will read the restart file to determine where it will

start reading in the audit trail stream. For a coldstart, where the

Collector’s starting parameters are used, this file must not exist (user must

purge manually). This file name must be unique for each Queue Manager

and Collector. This is a required parameter.

TRACE level_number

Initial Changed

Version Version Values Default Minimum Maximum Alter

4.090 0 disable 0 3 No

Disables or sets the trace level for the QMGR event tracing.

Level_number specifies the level of detail supplied in the trace. 0 through

3 are valid level_numbers. The default is 0, which disables tracing. A

setting of 1 dumps most function names as they are called, 2 dumps

additional function names, and detail for certain functions.

Note: Tracing generates a significant additional overhead, and will

adversely affect performance. Tracing should never be enabled

except under direction from HP Shadowbase Support.

TRACEFILE filename

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HP Integrity NonStop H-Series Guida Utente Pagina 305