DataKeeper for Windows All Documentation - SIOS

Initial Synchronization of Data Across the LAN or WANIn WAN configurations, one way to avoid the initial full synchronization of data across the WAN is to configureboth systems on a LAN, create the mirror and allow the initial full synchronization to occur across the LAN.Once the initial synchronization is complete, update the IP addresses for the source and target, which willplace the mirror in the Paused state. Move the target system to its new location. Once the target system isin place, power it on and verify all network settings, including the IP address that was updated. On the sourcesystem, run the CHANGEMIRRORENDPOINTS * command. The mirror will be CONTINUED and only apartial resync (the changes that have occurred on the source volume since the mirror was PAUSED) of thedata is necessary to bring the TARGET volume in sync with the SOURCE.* Note: This command supports changing the endpoints of a mirrored volume that is configured on 3nodes or fewer. For configurations greater than three nodes, create mirrors with the final endpoint atthe local site and use route adds to get the mirrors created and resynced before moving the serverto the final location/address/DR site.ExampleIn the example below, a mirror is created locally in the primary site, and then the target will be moved toremote site. The source server is assigned the IP address 172.17.100.1, and the target server is assigned theIP address 172.17.100.2. The WAN network IP is 88.17.100.x,• Using the DataKeeper UI, create a mirror on Volume X from 172.17.100.1 to 172.17.100.2. Note:Connecting to the target by name is recommended so DNS name resolution later will automaticallyresolve to the new IP address.Once the initial sync of the data is complete,• Update the IP address for the network adapter for the source to 88.17.100.1 and update the IP addressfor the network adapter on the target to 88.17.200.2. This will place the mirror on the source side intothe PAUSED state.DataKeeper for Windows Technical DocumentationPage 39