DataKeeper for Windows All Documentation - SIOS

Application Data Using Snapshotfor any failed volumes will be deleted. While the snapshot error is being handled, you may receive NTFS filesystem errors. These messages are normal and can be ignored.Application Data Using SnapshotWhen using target snapshot data with your application, if the target snapshot is refreshed, you may need toclose and reopen your application(s) to refresh the data.Volume Shadow Copy Service (VSS) Free Disk Space RequirementsIf your target snapshot volume has insufficient disk space, VSS operations involving that volume may fail withan "unexpected error". To avoid this, your snapshot volume should follow the guidelines from the Microsoftarticle Troubleshoot VSS issues that occur with Windows Server Backup (WBADMIN) in Windows Server2008 and Windows Server 2008 R2This article provides the following requirements for free disk space:For volumes less than 500 megabytes, the minimum is 50 megabytes of free space. For volumes more than500 megabytes, the minimum is 320 megabytes of free space. If the volume size is more than 1 gigabyte, aminimum of at least 1 gigabyte of free disk space on each volume is recommended.Using SteelEye DataKeeper Standard Edition To ProvideDisaster Recovery For Hyper-V Virtual MachinesConsiderationsWhen preparing a Hyper-V environment that spans subnets, subnetting may need to be taken intoconsideration for any applications that are running inside the virtual machine. Some applications "hard code"IP addresses into their configurations. When these types of applications are loaded in a virtual machine that isreplicated (via a DataKeeper replicated volume) to a target server on a different subnet, they may not operateas expected due to the difference in the network settings.Preparing the Environment1. Install Windows on two servers with at least two partitions, one for the OS and one for the Hyper-Vvirtual machine (VM) files. The partition for the files on the target server must be of equal or greatersize to the source server's "data" partition. Install and configure the Hyper-V role on each server asdescribed in Microsoft's Hyper-V Planning and Deployment Guide and the Hyper-V Getting StartedGuide, but wait to create your virtual machine until the DataKeeper replicated volume has beencreated.2. Complete the installation requirements for the SteelEye DataKeeper software.3. Connect to the Servers.Once you connect, new options will appear in the center pane.You can also optionally review theServer Overview report to see the status of your volumes.DataKeeper for Windows Technical DocumentationPage 141