Using Cci With Global-Active Device - Hitachi VSP F1500 User And Reference Manual

The configuration definition file for CCI is a group that is not a consistency
group.
Creating a new pair and defining the pairs in a consistency group for a group
you defined using the CCI configuration definition file and the pair is already
defined in a consistency group defines the pair in the same consistency
group, even if you try to create a new pair and assign it to a different
consistency group.
For details about Hitachi Thin Image, see the Hitachi Thin Image User Guide
for your storage system.

Using CCI with global-active device

The CCI software is installed on the host servers and used for global-active
device operations. The CCI command devices and CCI configuration definition
files are required for global-active device operations. You can execute CCI
commands for global-active device using the in-band or out-of-band method
of CCI command execution.
For details about global-active device, see the Global-Active Device User
Guide. For details about the CCI command options and display results for
global-active device operations (for example, PHY_LDEV, VIR_LDEV), see the
Command Control Interface Command Reference.
Note: If you set the S-VOL Disable attribute of Data Retention Utility to a
GAD secondary volume, GAD pair operations from CCI are restricted. Release
the S-VOL Disable attribute of the GAD secondary volume, and then perform
the GAD pair operations.
ShadowImage operations
Figure 6-2 ShadowImage system configuration on page 6-6
ShadowImage configuration. The ShadowImage commands also support the
functionality that links the system operation for the purpose of volume
backup among UNIX servers managed by the operating system. For detailed
information about the operational requirements and specifications for
ShadowImage, see the Hitachi ShadowImage® User Guide for your storage
system.
Following is a list of sample ShadowImage functions that can be executed
using CCI commands:
• Pair creation: Creates a new volume pair. Volume pairs can be created in
units of volumes or groups.
• Pair splitting: Splits a volume pair and allows read and write access to the
secondary volume.
• Pair resynchronization: Resynchronizes a split volume pair based on the
primary volume. The primary volume remains accessible during
resynchronization.
Data replication operations with CCI
Command Control Interface User and Reference Guide
illustrates a
6-5