Requirements and restrictions for urz, Disk track format, One-to-one volume copy operations – HP StorageWorks XP Remote Web Console Software User Manual
Page 56
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
•
If you want 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
•
primary storage system: XP storage system with URz installed.
•
secondary storage system: XP storage system with URz installed.
Requirements and Restrictions for URz
URz has the following requirements and restrictions:
•
System requirements (see the next section)
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Disk track format
•
One-to-one volume copy operations
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Duplicate VOLSER
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Volume type
•
Journal group
•
Accessing URz primary data volumes and secondary data volumes
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Cache and NVS
•
Duplicate volume
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 “
” on page 40 and
TCz Synchronous (3DC Multi-target Configuration)
56
Preparing for Universal Replicator z/OS Operations