Virtual TapeServer 6.04.05 for NonStop Servers Supplemental Installation Guide

Enabling and Configuring Data Replication

Data Replication is a advanced software feature that enables you to back up data to remote

Virtual TapeServer (VTS) servers. This feature is implemented as Instant DR and AutoCopy.

VTS copies data to remote sites over a wide area network (WAN) TCP/IP connection. Virtual

tapes on the originating (source) VTS server are transmitted to the remote (target) VTS

server. In the event of a disaster, remote recovery operations can begin immediately using the

backup data copy on a remote VTS site.

To configure Instant DR and AutoCopy, you must configure network settings for all VTS

locations. Adhere to the following requirements and guidelines when configuring these

software modules:

• The VTS server provides two Ethernet ports (eth0 and eth1). Under normal

circumstances, eth0 is used for local IP traffic to access the user interface for the VTS and

for mounting communication between VTS and hosts. When Instant DR is configured,

eth1 is configured with a routable address to communicate with additional VTS servers at

remote locations.

• The Event Management Service (EMS) is responsible for monitoring mounts and

dismounts relevant to AutoCopy. Therefore, EMS must be configured and running on the

VTS server as described in the EMS chapter of the Virtual TapeServer Configuration

Guide.