Hitachi Dynamic Link Manager, Руководство пользователя

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6. Command Reference
418
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
hdlmtr
n
.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
hdlmtr
n
.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.
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)
• When the checking interval has been specified before:
The previously specified interval