HP StorageWorks XP Remote Web Console Software - Manual (Page 23)

URz Components
URz operations involve the XP disk array storage systems at the primary and secondary sites, the physical
communications paths between these storage systems, and the XPURz remote console software. URz
copies the original online data at the primary site to the offline backup volumes at the secondary site via
the dedicated fibre-channel remote copy connections using a journal volume. You can operate the URz
software with the user-friendly GUI environment using the XP disk array URz remote console software.
Also note, that the host failover software is required for effective disaster recovery with URz.
For management of URz journal groups that consist of journal volumes located in multiple storage systems,
host I/O time stamping function (provided by MVS DFSMSdfp) is a requisite functional item. An error
reporting communications (ERC) feature is essential for URz to be able to recover data lost in a disaster.
Figure 2 on page 23 shows the URz components and their functions:
XP Remote Web Consol e XP Remote Web Consol e
Figure 2 URz Components
Figure 3
on page 24 shows the plural secondary storage systems connection configuration of URz. 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.
Hitachi Universal Replicator for z/OS user guide for XP12000/XP10000 Disk Arrays and SVS 200 23