HP StorageWorks XP Remote Web Console Software - Manual (Page 15)

Hitachi TrueCopy for z/OS user guide 15
NOTE: The HXRC option is only required for the 2105 or 2107 CU emulation type. You can use HXRC for
the 3990 controller emulation type without enabling the HXRC option.
If you use HXRC with FICON, carefully set the path configuration. See Table 1 .
HP XP Continuous Access Software
As an enterprise advantage, the XP12000/XP10000 can be concurrently connected to zSeries and S/390
and a variety of UNIX-based and PC-server hosts. Contact your HP account support representative for the
latest information on platform and version support. You can use HP StorageWorks XP Continuous Access
Software to maintain remote copies of the UNIX/PC server data stored on the XP12000/XP10000. TC390
volumes and XP Continuous Access volumes can exist concurrently in the same XP12000/XP10000.
Overview of TrueCopy operations
TC390 provides a storage-based hardware solution for concurrent data duplication, migration, and
disaster recovery operations. After TC390 operations are established, remote copies of data are
automatically maintained for backup and disaster recovery purposes. TC390 supports both SMS- and
non-SMS-managed data, is completely application-independent, and is designed to run unattended.
During normal TC390 operations, the main volumes remain online to all hosts and continue to process
both read and write I/O operations.
TC390 Synchronous provides:
• Volume-based, real-time data backup and is ideal for high-priority data backup, duplication, and
migration tasks. In the event of a disaster or system failure at the main site, the remote (secondary)
TC390 Synchronous data can be rapidly invoked to allow recovery at the volume level with an
extremely high level of data integrity.
TC390 Asynchronous (TC390A) represents a unique and outstanding disaster recovery solution for large
amounts of data that span multiple volumes and even multiple XP12000/XP10000. TC390A’s
group-based update sequence consistency solution enables fast and accurate database recovery, even
after a “rolling” disaster, without the need for time-consuming data recovery procedures. The TC390A
volume groups at the remote site can be recovered with full update sequence consistency, but the updates
will be behind the main site due to the asynchronous remote copy operations.
TC390A provides:
• Update sequence consistency for user-defined groups of volumes (such as large databases).
• Protection for write-dependent applications in the event of a disaster.
This overview of TC390 operations describes:
• TC390 components (see page 16)
• TC390 operations (see page 25)
• TC390A recordset operations (see page 29)
• TC390A consistency group operations (see page 33)
Table 1 HXRC path configuration with FICON
Application Site Path
(System - DKC)
Record Set Transfer Path
(System Data Mover - DKC)
For Use
ESCON ESCON No
ESCON FICON Supported
FICON ESCON Not Recommended 1
1. If you use FICON for the path of application site, you should also use FICON for the path of System Data
Mover (SDM) because of the difference in performance between FICON and ESCON.
FICON FICON Supported