HP XP7 Storage - Manual (Page 141)

Function Default value Recommended value
Collection of audit log
data
off The recommended value
depends on the operating
environment.
Set on, if you want to collect
audit log data.
#
This function is applied only when Hitachi AMS2000 series, Hitachi SMS
series, or HUS100 series storage is used.
Setting Up Load Balancing
In a cluster environment, the load balancing function is only available for the
Thunder 9500V series, Lightning 9900V series, Hitachi USP series, Hitachi
AMS2000/AMS/WMS/SMS series, Universal Storage Platform V/VM series, and
Virtual Storage Platform series. In a non-cluster environment, the load
balancing function is available for the Thunder 9500V series, Lightning 9900V
series, Hitachi USP series, Hitachi AMS2000/AMS/WMS/SMS series, Universal
Storage Platform V/VM series, Virtual Storage Platform series, and EMC DMX
series. For the EMC DMX series, EMC CX series, and HP EVA series, these
conditions are applied regardless of whether or not the load balancing
function is enabled in those series. For example, in a cluster environment, the
load balancing function is disabled even if you try to enable it for the EMC
DMX series. For details on the cluster software supported by HDLM, see
Cluster Support on page 2-46 .
• Setting up load balancing by using the set operation
The following is an example of how to set up load balancing by using a
command:
dlnkmgr set -lb on -lbtype exlio
When load balancing is enabled by specifying on for the -lb parameter,
specify one of the following algorithm values after the -lbtype
parameter:
¢
rr for the Round Robin algorithm
¢ exrr for the Extended Round Robin algorithm
¢ lio for the Least I/Os algorithm
¢
exlio for the Extended Least I/Os algorithm
¢ lbk for the Least Blocks algorithm
¢
exlbk for the Extended Least Blocks algorithm
The type of algorithm specified by the -lbtype parameter remains stored
in the system, even if, you disable the load balancing function by
specifying -lb off. If you decide to re-enable load balancing at a later
time, and you do not specify an algorithm, load balancing will still be
executed by using the algorithm that was previously specified.
Creating an HDLM Environment
3-73
Hitachi Dynamic Link Manager (for Windows®) User Guide