HP Hitachi Dynamic Link Manager Software User Manual
Page 169
3. Creating an HDLM Environment
145
>dlnkmgr set -pchk on -intvl 10
When path health checking is enabled by specifying
on
for the
-pchk
parameter,
you can also specify the
-intvl
parameter, in order to specify the checking
interval. If the checking interval is not specified, then the previously specified
value will be automatically applied. For example, if you turn off path health
checking after the checking interval was specified as
15
minutes, and then you
enable path health checking again (but without specifying a checking interval) the
15
value that was specified from before will be used again.
(3) Setting Up the Automatic Failback Function
When intermittent error monitoring is enabled and the number of error occurrences is
2
or more, the following condition must be satisfied.
error-monitoring-interval >= checking-interval-for-automatic-failbacks
x
number-of-times-an-error-is-to-occur-during-intermittent-error-monitoring
If this condition is not satisfied, an error will occur and the warning message
KAPL01080-W will be output.
If this happens, change any of the following settings: the checking interval for
automatic failbacks, the intermittent error-monitoring interval, or the number of times
that the error needs to occur.
If you set the number of times that the error needs to occur to
1
, the above condition
does not need to be satisfied.
• Setting up automatic failback by using the
set
operation
The following is an example of setting up automatic failback by using a
command:
>dlnkmgr set -afb on -intvl 10
To enable the automatic failback function, set it to
on
. The checking interval can
be specified by the
-intvl
parameter. The previously specified value will be
applied when a checking interval is not specified. For example, if you turn off the
automatic failback function after the checking interval was specified as
5
minutes,
and then you turn it back on (but without specifying a checking interval) the
5
minutes that were specified from before will be used again.
(4) Setting Up Intermittent Error Monitoring
Intermittent error monitoring is specifiable only when the automatic failback function