HP Hitachi Dynamic Link Manager Software - Manual (Page 254)

6. Command Reference
230
If the value is changed to something smaller than the value that is currently set,
the execution confirmation message KAPL01097-W will be displayed and the
trace file will be deleted temporarily.
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
Path health checking checks all online paths.
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
The explanation for the following sub-parameter describes how to specify the
checking interval.
-intvl
checking-interval
Specify the checking interval between path health checks. Specify a value
from 1 to 1440 minutes depending on the user environment. When you
change the checking interval, the new setting takes effect immediately. When
the checking interval is shortened and the checking interval after the change
(from the end of the previous path health check) has already elapsed, the path
health check will start over.
The path health check interval setting remains stored in the system even if
you disable the function by changing the path health checking to
off
.
Therefore, when you re-enable path health checking and do not change the
interval, the path health interval stored in the system is used.
-afb {on [-intvl
checking-interval
]|off}
Enables or disables automatic failbacks.