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

TrueCopy® User Guide
Version
9.8.7
Audience
anonymous
Part Number
MK-98RD9022-18

You can create, update, and copy TC pairs or both TC pairs and TCz pairs in a consistency group of one primary storage system and one secondary storage system.

(VSP Gx00 models, VSP Fx00 models, and VSP E series)

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.

(VSP 5000 series) TC and TCz pairs between one primary system and secondary system can be placed in the same consistency group, as shown in the following figure.



Figure notes:
  1. TC pairs are assigned to a consistency group using CCI.

    TCz pairs are assigned to a consistency group using Business Continuity Manager (BCM).

  2. Open and mainframe volumes (P-VOLs) receive I/O requests from their applications at the primary (main) site, and data in the volumes is updated.
  3. TC or TCz runs copy operations 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.

    For information on creating a TCz pair and assigning it to a consistency group using BCM, see the Hitachi Business Continuity Manager User Guide and the Hitachi Business Continuity Manager Reference Guide.