HP Hitachi Dynamic Link Manager Software - Manual (Page 402)

6. Command Reference
380
As the amount of log information to be output increases, the amount of time
before existing information is overwritten becomes shorter.
-systfs
trace-file-size
Specify the size of the trace file in kilobytes. Specify a value from
100
to
16000
.
By specifying both the trace file size and the number of trace files, you can collect
up to 1024000 kilobytes of trace files in total.
If a value smaller than the set value is specified, the execution confirmation
message KAPL01097-W is displayed and the trace file is deleted for the time
being.
The trace files for which a file size can be set are
hdlmtr
n
.log
(n indicates a file
number from
1
to
64
). The trace files are fixed in length. Thus, even if the amount
of written trace information is less than the setting file size, the size of each output
trace file is always the same. When all the trace files become full, the new trace
data will overwrite the oldest trace data.
-systfn
number-of-trace-files
Specify the number of trace files. Specify a value from
2
to
64
.
By specifying both the trace file size and the number of trace files, you can collect
up to 1024000 kilobytes of trace files in total.
If a value smaller than the set value is specified, the execution confirmation
message KAPL01097-W is displayed and the trace file is deleted for the time
being.
The trace files for which the number of files can be set are
hdlmtr
n
.log
(n
indicates a file number 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.
When you specify
on
, specify the checking interval of path health checking by
specifying the parameter immediately following
on
. If you do not specify a
checking interval, path health checking is executed in the following interval:
• When the checking interval has not been specified before:
Every 30 minutes (default setting)