Creating Global Copy pairs (Global Mirror setup)

Complete this task to create Global Copy pairs from the local storage units to the remote storage units. This is the second step in setting up your Global Mirror environment.

Ensure that you have already created the fibre-channel paths between all Global Mirror source and target pairs and between the master and subordinate storage units.

The purpose of this step is to create a relationship between a source volume and a target volume.

Perform the following steps to create Global Copy pairs from the local storage units to the remote storage units. The example commands in this task are shown in two formats. The first format shows the type of information that the command requires. The second format provides the command with declared values for the variables.

Issue the mkpprc command to create a Global Copy pair from the local storage unit to the remote storage unit and to create a relationship between the associated source volume and target volume. Enter the mkpprc command at the dscli command prompt with the following parameters and variables:
```
 dscli>mkpprc -dev storage_imag_ID -remotedev storage_image_ID -type
gcp SourceVolumeID:TargetVolumeID
```
Example
```
dscli>mkpprc -dev IBM.1750-68FA120 -remotedev IBM.1750-68FA150 -type gcp
 0100:0100
```
Notes:
1. The -remotedev parameter specifies the ID of the secondary storage unit.
2. The -type gcp parameter specifies that one or more remote mirror and copy Global Copy volume relationships be established. Global Copy maintains the remote mirror and copy relationship in a nonsynchronous manner.
A confirmation message is issued for each successful Global Copy volume association that is created.
Issue the lspprc command to check the status information for each remote mirror and copy volume relationship in the list. Enter the lspprc command at the dscli command prompt with the following parameters and variables:
```
dscli>lspprc -dev storage_image_ID  -remotedev storage_image_ID
 -l SourceVolumeID:TargetVolumeID
```
Example
```
dscli>lspprc -dev IBM.2107-68FA120 -remotedev IBM.2107-68FA150 -l 0100:0100
```
Use the -l parameter to provide a more detailed report about the Global Copy volume relationships.

It is recommended that you wait until the Global Copy pair process has completed its first pass before you begin creating the FlashCopy relationships.

Note: Global Copy source volumes are not in the active Global Mirror session until the volumes have been added to the session and the session has started.