HP StorageWorks XP Remote Web Console Software - Manual (Page 13)

consistency between the primary and secondary data volumes. After the journal data are restored
to the secondary data volume, the journal data are discarded at the secondary site.
Components
Universal Replicator operations involve the XP disk arrays at the primary and secondary sites, the
physical communications paths between these storage systems, and the XP disk array Universal
Replicator for Mainframe remote console software. Universal Replicator for Mainframe copies the
original online data at the primary site to the offline backup volumes at the secondary site via the
dedicated FC remote copy connections using a journal volume. You can operate the Universal
Replicator for Mainframe software with the user-friendly GUI environment using the XP disk array
Universal Replicator for Mainframe remote console software.
NOTE: Host failover software is required for effective disaster recovery with Universal Replicator
for Mainframe.
For management of Universal Replicator for Mainframe journal groups that consist of journal
volumes located in multiple storage systems, the host I/O time stamping function (provided by MVS
DFSMSdfp) is a requisite functional item. An ERC feature is essential for Universal Replicator for
Mainframe to recover data lost in a disaster.
The following figure shows the Universal Replicator for Mainframe components and their functions:
Figure 2 Universal Replicator for Mainframe Components
The following figure shows the plural secondary storage systems connection configuration for
Universal Replicator for Mainframe. By connecting one primary storage system with more than
one secondary storage system, you can create a volume pair that has a one-to-one relationship
for each journal group.
Components 13