Cluster Support - Hitachi XP P9500 User Manual

Figure 2-14 Example System Configuration Using HDLM and Global Link

Cluster Support

HDLM can also be used in cluster configurations.
For details on cluster software supported by HDLM, the supported Solaris
version, and usable volume management software, see
Cluster Software and Volume Managers Supported by HDLM on page
HDLM uses a path of the active host to access an LU.
Paths are switched in units of physical paths. Therefore, if an error occurs in a
path, all the other paths that run through the same physical path are
switched. The switching destination is a physical path of the active host. The
details of host switching depend on the application.
Note
When you use HDLM in a cluster configuration, you must install the same
version of HDLM on all the nodes that comprise the cluster. If different
versions of HDLM are installed, the cluster system might not operate
correctly. If the HDLM Version and Service Pack Version, which are
2-40
HDLM Functions
Hitachi Dynamic Link Manager User Guide (for Solaris(R))
Manager
Combinations of
3-7.