Copyright © Acronis, Inc., 2000-2009 143The new virtual machine will be configured automatically, the source machine configurationbeing copied where possible. The configuration is displayed in the Virtual Machine Settings(p. 147) section. Check the settings and make changes if necessary.Then you proceed to the regular disk mapping procedure described below.Existing virtual machineAvailable when the Acronis Backup & Recovery 10 Agent for Hyper-V or Agent for ESX/ESXi isinstalled.On selecting this, you specify the virtualization server and the target virtual machine. Thenyou proceed to the regular disk mapping procedure described below.Please be aware that the target machine will be powered off automatically before the recovery. If youprefer to power it off manually, modify the VM power management option.Disk #:Disk # (MODEL) (p. 145)Select the destination disk for each of the source disks.NT signature (p. 143)Select the way the recovered disk's signature will be handled. The disk signature is used byWindows and the Linux kernel version 2.6 and later.Disk destinationTo specify a destination disk:1. Select a disk where you want the selected disk to recover to. The destination disk's space shouldbe at least the same size as the uncompressed image data.2. Click OK.All the data stored on the target disk will be replaced by the backed up data, so be careful and watch out fornon-backed-up data that you might need.NT signatureWhen the MBR is selected along with the disk backup, you need to retain operating systembootability on the target disk volume. The operating system must have the system volumeinformation (e.g. volume letter) matched with the disk NT signature, which is kept in the MBR diskrecord. But two disks with the same NT signature cannot work properly under one operating system.If there are two disks having the same NT signature and comprising of a system volume on a machine, at thestartup the operating system runs from the first disk, discovers the same signature on the second one,automatically generates a new unique NT signature and assigns it to the second disk. As a result, all the volumeson the second disk will lose their letters, all paths will be invalid on the disk, and programs won't find their files.The operating system on that disk will be unbootable.To retain system bootability on the target disk volume, choose one of the following:• Select automaticallyA new NT signature will be created only if the existing one differs from the one in the backup.Otherwise, the existing NT signature will be kept.
