HP StorageWorks XP Remote Web Console Software - Manual (Page 40)

For further information on XP Remote Web Console operations, see the HP StorageWorks XP
Remote Web Console user guide for XP12000/XP10000 Disk Arrays and SVS 200, or contact
your HP account team.
NOTE: Administrator or URz write access to the XP Remote Web Console Java applet
program is required to perform URz operations. Users without Administrator or URz write
access can only view URz information
•
To use Universal Replicator for z/OS, you must install not only a license for Universal Replicator
for z/OS but also a license for Continuous Access for z/OS.
NOTE: For detailed information about the connection with XP12000/XP10000/SVS 200
Disk Array, see Enabling the URz Option(s) .
Requirements and Restrictions for URz
URz has the following requirements and restrictions:
•
Disk Track Format
•
One-to-One Volume Copy Operations
•
Duplicate VOLSER (Volume Serial Number)
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Volume Types
•
Journal Group
•
Accessing URz Primary Data Volume and Secondary Data Volume
•
Cache and Nonvolatile Storage (NVS)
•
Duplicate Volumes
Disk Track Format
URz supports the following requirements on the disk track format, which must be ensured by the
user. URz cannot detect exceptions to these requirements. The primary storage system will abort
the URz initial copy operation if the track format for both the primary data volume and secondary
data volume does not meet the following requirements.
•
The TCz primary data volume and secondary data volume must have the same track format.
•
Record zero (R0) must be standard format, with key length of zero and data length of eight.
The primary storage system will abort the initial copy operation if R0 is not standard format.
•
The CCHH (logical cylinder address and logical head address) of R0 must be identical to the
physical cylinder address and physical head address of the track.
•
The CCHH of each user record in a track must be unique.
One-to-One Volume Copy Operations
URz requires a one-to-one relationship between the volumes of the volume pairs. A volume (LDEV)
can only be assigned to one URz pair at a time. However, when creating a URz pair for delta
resync operation, you can specify the secondary data volume of a URz pair that is not for delta
resync operation as the secondary data volume of the URz pair for delta resync operation. In that
case, you need to create a mirror the delta-resync pair and the non-delta-resync pair. For detailed
information about delta resync operation, see
URz Delta Resync Operation and “Combining URz
with TCz Synchronous (3DC Multi-target Configuration)” (page 77) ).
40 Requirements and Restrictions for Universal Replicator z/OS Operations