Hitachi Dynamic Link Manager Software Users Guide for Linux (6.6) (HIT5203-96005, November 2011)

to perform system-wide load balancing, and centrally manage the system by
collecting HDLM failure information in Global Link Manager.
Global Link Manager collects and manages information about paths from
instances of HDLM installed on multiple hosts. Even if multiple users manage
these hosts, they can control and view this centralized information from client
computers.
For an example of a system configuration using HDLM and Global Link
Manager, see Figure 2-16 Example System Configuration Using HDLM and
Global Link Manager on page 2-44.
Figure 2-16 Example System Configuration Using HDLM and Global Link
Manager
Cluster Support
HDLM can also be used in cluster configurations.
For details about the cluster software supported by HDLM, see
Cluster
Software Supported by HDLM on page 3-16 in Related Products When Using
Red Hat Enterprise Linux AS4/ES4 on page 3-16, Cluster Software
Supported by HDLM (If an FC-SAN Is Used) on page 3-36 in Related
Products When Using Red Hat Enterprise Linux 5 on page 3-36, Cluster
2-44
HDLM Functions
Hitachi Dynamic Link Manager User Guide (for Linux(R))