Consistency group for pairs in one primary and one secondary storage system

You can create, update, and copy TrueCopy pairs in a consistency group of one primary storage system and one secondary storage system.

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.