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HP Hitachi Dynamic Link Manager Software User Manual

Page 402

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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)