SNAX/HLS Configuration and Control Manual

Command Dictionary
Using the HLSCOM Utility
104705 Tandem Computers Incorporated 6–61
TRACE Command The TRACE command specifies tracing operations. Use this command to do the
following:
Designate the file that is to hold the trace
Designate the sessions that are to be traced and what types of trace to use
Eliminate selected sessions from the trace
Start the trace
Stop the trace
TRACE { DISABLE LU-specifier }
{ ENABLE LU-specifier [,TYPE type [, type ]...]]}
{ FILE file-name [, SIZE number ] }
{ START }
{ STOP }
DISABLE LU-specifier
removes selected session(s) from the current trace.
ENABLE LU-specifier [,TYPE type [, type ]...]
adds selected session(s) to the current trace. The TYPE parameter specifies the
scope of trace records collected by listing one or more specifiers, separated by
commas. The type selection overrides any type selection currently in effect on the
affected sessions. The type specifiers consist of single letters or full names, from
the list below:
V (or VERBS) specifies verb request/reply tracing.
D (or DFC) specifies DFC tracing.
S (or SNAX) specifies SNALU I/O tracing.
L (or LUSVM) specifies LU service manager event tracing.
A (or ALL) specifies all levels of trace to be collected. Specifying A is
synonymous with specifying V, D, S, and L. This is the default.
FILE file-name [,SIZE number ]
specifies a disk file to be used to collect trace records. Specifying a file name is
valid only if tracing is not currently active (that is, it has either never been started
with TRACE START or has been stopped with TRACE STOP).
The SIZE parameter, if present, is followed by a decimal number that specifies the
number of disk pages to be allocated to the trace file. The allowable value of the
SIZE parameter is 1 to 2047. If the SIZE parameter is omitted, the default value of
64 pages is assumed.