Hitachi Dynamic Link Manager Software Users Guide for Linux

Item name Default value Recommended value
extended load
balancing
Dynamic I/O path
control
#
off
The checking interval is 10
minutes.
off
The recommended checking
interval depends on the operating
environment.
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
-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 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 Log Collection Levels on page 6-18 shows
the values of the error log collection level. If an error occurs, you may
have to set the error log collection level to 1 or higher to collect log
information.
Command Reference
6-17
Hitachi Dynamic Link Manager (for Linux®) User Guide