Hitachi G200 - Consistency Group for Pairs in Multiple Primary and Secondary Systems

Figure notes:
1. The TC pair is created in the consistency group specified from CCI.
2. I/O requests are received from each application in the open-system
server to update data in each volume.
3. The TC copy operation is performed in the consistency group.
For information on creating a TC pair and assigning it to a consistency group
using CCI, see the Command Control Interface User and Reference Guide and
the Command Control Interface Command Reference.
Consistency group for pairs in multiple primary and secondary
systems
This topic describes how to create, update, and copy TC pairs in a consistency
group of multiple primary storage systems and secondary storage systems.
Planning for TrueCopy
3-17
Hitachi TrueCopy® User Guide for Hitachi Virtual Storage Platform Gx00 and Fx00 Models