HP Hitachi Dynamic Link Manager Software - Manual (Page 452)

6. Command Reference
430
are 500 or more paths for the
-intvl
parameter, the time interval of the
monitor
operation might be several seconds to 20 seconds late for the value
specified in the
-intvl
parameter.
If the number of paths is 500 or more, specify an appropriate value for the
-intvl
parameter based on the values listed in Table 6-21: Recommended
values for the
-intvl
parameter when there are 500 or more paths.
However, when any of the following operations is performed concurrently
with the
monitor
operation, even if you specify a value listed in the
following table, the time interval of the
monitor
operation might be a few
seconds late.
- The
view
operation
- Path health checking
- Automatic failback
Table 6-21: Recommended values for the
-intvl
parameter when there are 500
or more paths
(1) To display I/O information for each HBA port
-hbaid
HBA-port-ID
Specifies the HBA port ID of the HBA port for which I/O information is to be
displayed. The subsequent parameters specify the display interval and count. The
format for the subsequent parameters are as follows:
-intvl
interval
Specifies the interval at which I/O information is to be displayed, in the range
from 1 to 60 (seconds). When this parameter is omitted, the default (3
seconds) is applied.
-count
count
Specifies the number of times I/O information is to be displayed, in the range
from 1 to 999. When this parameter is omitted, the default (10) is applied.
-t
Number of paths (approximate) Recommended value specified for the -intvl parameter
(seconds)
500 3 or more
1000 5 or more
2000 10 or more
4000 30 or more