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Note*21: The volume can be used as a secondary data volume only when you restore a URz pair or perform a Business Continuity Manager YKRESYNC REVERSE operation. However, even in this case, you cannot use the volume as the secondary data volume of the URz pair for delta resync operation.
Note*32: This is "No" if more than one primary storage systems and more than one secondary storage system are used for remote copy (see section Using Multiple Primary and Secondary Storage Systems).
Virtual LVI
You can perform Virtual LVI operations on primary and secondary data volumes in URz pairs. If you need to perform Virtual LVI operations on a URz primary data volume or secondary data volume, you must delete the pair first to return the volume to Simplex status.
When creating a URz pair consisting of two Virtual LVI volumes, make sure that the primary data volume and the secondary data volumes have the same capacity.
Cache Residency Manager
You can perform Cache Residency Manager operations on URz primary data volumes and secondary data volumes.
ShadowImage for z/OS®
URz and ShadowImage for z/OS® (SIz) can be used together in the same storage system and on the same volumes to provide multiple copies of data at the primary and/or secondary sites. Table
•For shared URz/SIz volumes, the URz pair status is reported to the host if you query the URz primary data volume or secondary data volume. To obtain the SIz pair status, query the target volume
•SIz supports multiple
Chapter 3 Preparing for Universal Replicator z/OS Operations |