Configuring for remote mirroring on XIV

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When you configure IBM® Storage Protect Snapshot, you can set the configuration parameters to create snapshots by using target volumes of remote mirroring relationships. These target volumes are used to create application consistent snapshot backups.

About this task

To configure IBM Storage Protect Snapshot with XIV Synchronous Remote Mirroring and Asynchronous Remote Mirroring, complete the following steps:

Procedure

Define a coupling between peer volumes on the master and subordinate XIV® systems, which creates a mirror relationship between the two.
Activate the XIV remote mirror couplings.
Define a coupling between peer consistency groups on the master and subordinate XIV systems, which creates a mirror relationship between the two.
Add volume mirror couplings to the consistency group couplings.
Run the setup script to configure a dedicated device class for the snapshot backups on the remote cluster. When you configure the new DEVICE_CLASS section with the setup script, look for the following prompt:
```
Is the FlashCopy/Snapshot taken from the mirror volumes {COPYSERVICES_REMOTE}.
```
Enter yes. The COPYSERVICES_REMOTE_SERVERNAME, COPYSERVICES_REMOTE_USERNAME, and TAKEOVER_HOST_NAME parameters are also required for remote mirroring.

Example

The following information is provided as an example of how a team can complete asynchronous remote mirror configuration across two sites:

To configure IBM Storage Protect Snapshot with IBM XIV Storage System with Asynchronous Remote Mirroring at both sites, certain ports must be open within the firewalls:

On the production system, the production host, backup host, and primary XIV system must have ports open within the firewall.
On the takeover system, the takeover host, backup host, and secondary XIV system must have ports open within the firewall.

For both the primary and secondary sites, the following ports must be open within the firewall:

TCP port 3260 (iSCSI) open within firewalls for iSCSI replication
Ports: http, https, ssh, and telnet
TCP/IP ports: 55697, 5997, 5998, and 7778

All ports must be bidirectional.