O&O DiskImage 7 User's Guide - O&O Software
O&O DiskImage 7 User's Guide - O&O Software
O&O DiskImage 7 User's Guide - O&O Software
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About O&O <strong>DiskImage</strong> 7<br />
Connection between image types<br />
Incremental images<br />
Incremental images only save the changes made since the last base image. As a rule, data is compared using checksums<br />
in O&O <strong>DiskImage</strong>, so that the incremental image does not require a complete image as base image. The last<br />
incremental or differential image is enough for doing this. To restore an incremental image, you need the last complete<br />
image as well as all the following images recording any changes.<br />
Differential images<br />
Differential images compare present data with the last complete image and store only the changes. The first "successive"<br />
image after the complete image is always a differential image. To restore a differential image, you will need<br />
both the complete image and the differential image.<br />
Base image<br />
A base image is an image that serves as a basis for any further image of the changes. Differential images require a<br />
complete image as a base image. Incremental images can usually be made using the last image of the changes as<br />
their base image. It's possible, for example, to use a differential image as a base image for an incremental image. In<br />
this way, an incremental image can also serve as base image for further incremental images. Also see picture in chapter<br />
Image of the changes.<br />
O&O <strong>DiskImage</strong>-4