Hitachi Dynamic Link Manager Software Users Guide for AIX

Item name Default value Recommended value
Displaying the
physical storage
system information
off
The recommended value depends
on the operating environment.
Set to on if you want to display
the physical storage system
information.
#
This item is applied only when Hitachi AMS2000 series, Hitachi SMS
series, or HUS100 series storage is used.
-lb {on [-lbtype {rr|exrr|lio|exlio|lbk|exlbk}]|off}
Enables or disables load balancing.
on: Enabled
off: Disabled
Load balancing distributes load among paths and prevents the
performance of the entire system from deteriorating. As such, we
recommend that you set this parameter to on.
-lbtype {rr|exrr|lio|exlio|lbk|exlbk}
Specify the algorithm to be used for load balancing.
rr: The Round Robin algorithm
exrr: The Extended Round Robin algorithm
lio: The Least I/Os algorithm
exlio: The Extended Least I/Os algorithm
lbk: The Least Blocks algorithm
exlbk: The Extended Least Blocks algorithm
The type of algorithm specified by the -lbtype parameter remains
stored in the system, even when you disable the load balancing
function by specifying -lb off. Therefore, if when you re-enable the
load balancing function without specifying an algorithm, load
balancing will be performed according to the algorithm that is stored
in the system.
-ellv error-log-collection-level
Specify the level of error information you want to collect for an error log.
The HDLM manager log (dlmmgr[1-16].log) contains log files in which an
error log collection level can be set.
Table 6-3 Values of the Error Logging Level on page 6-20 shows the
values of the error logging level. If an error occurs, you may have to set
the error log collection level to 1 or higher to collect log information.
Table 6-3 Values of the Error Logging Level
Value Description
0
Collects no error log.
6-20
Command Reference
Hitachi Dynamic Link Manager (for AIX) User Guide