HP Hitachi Dynamic Link Manager Software - Manual (Page 413)

Table 6-4 Trace Level Values
Value Description
0 Does not output any trace.
1 Only outputs error information.
2 Outputs a summary of program operation.
3 Outputs details of program operation.
4 Outputs all information.
The higher the error log collection level value, the more log information
will be output. As the amount of log information that is output increases,
the amount of time before existing information will be overwritten
becomes shorter.
-systfs trace-file-size
Specify a value from 100 to 16,000 for the size of the trace log file (in
KB).
By specifying both the trace file size and the number of trace files, you
can collect up to 1,024,000 KB of trace files in total.
If you specify a value smaller than the set value, the KAPL01097-W
message is displayed to confirm execution, and the trace file is
temporarily deleted.
Trace files for which the trace file size can be set are hdlmtrn.log (where
n is a value from 1 to 64). The length of a trace file is fixed. Therefore,
even if the amount of written trace information is less than the set file
size, the file size of each output trace file is always fixed. When trace data
is written to all trace files, new trace data overwrites old trace data (the
oldest file is overwritten first).
-systfn number-of-trace-files
Specify a value from 2 to 64 for the number of trace log files.
By specifying both the trace file size and the number of trace files, you
can collect up to 1,024,000 KB of trace data in total.
If you specify a value smaller than the set value, the KAPL01097-W
message is displayed to confirm execution, and the trace file is
temporarily deleted.
Trace files for which the number of files can be set are hdlmtrn.log
(where n is a value from 1 to 64).
-pchk {on [-intvl checking-interval]|off}
Enables or disables path health checking.
on: Enabled
off: Disabled
For a standby host, or a host connected to the Thunder 9500V series, or
Hitachi AMS/WMS series storage system, we recommend that you
activate path health checking so that you can detect errors in paths
where I/Os operations do not occur.
Command Reference
6-19
Hitachi Dynamic Link Manager User Guide for Linux ®