DataKeeper for Windows All Documentation - SIOS

Creating Mirrors With Multiple TargetsThis procedure can also be used to safely create a mirror on a shared target volume. In the example above,the mirror could have been created from SYSC to SYSA - in that case, the volume SYSB would be a sharedtarget.If you have more than two shared systems at a site, this same procedure can be used to lock the volume onall systems that will not be part of the initial mirror.Creating Mirrors With Multiple TargetsSteelEye DataKeeper provides the ability to replicate data from a single source volume to one or more targetvolumes. In addition, DataKeeper also allows you to switch over control and make any of the target volumesbecome the source. Assuming you have already created a job with a mirror using the Create a Mirrorprocedure, use the following procedure to create a second mirror from the same source volume to a differenttarget volume:1. Right-click on an existing job.2. Choose the Create a Mirror action.3. Choose the source of the existing mirror (as this will also be the source of the new mirror).4. Choose the target for the new mirror.5. Select Done.The next dialog displayed prompts you for additional information that DataKeeper requires to be able toproperly switch over the source volume to one of the target volumes. You already specified thenetwork endpoints between the source system and the first target system when you created the firstmirror. You also specified the network endpoints between the source system and the second targetsystem when you created the second mirror.The final piece of information DataKeeper requires is the network endpoints of a (potential) mirrorbetween the first target system and the second target system so that no matter which systembecomes the source of the mirrors, mirrors can be properly established between all three systems.6. On the Additional Information Needed dialog, choose the network endpoints that will be used tocreate a mirror between the first target system and the second target system.Note: If using Windows Server 2012, please see the Known Issue regarding this dialog.This mirror will not be created now. DataKeeper is simply storing these mirror endpoints for futureuse.7. Select OK.Note: If you are replicating a single source volume to more than two target volumes, you will have toprovide network endpoints for mirrors between all of the systems involved.Examples:DataKeeper for Windows Technical DocumentationPage 103