TOPIC
DISCUSSION An incremental backup theoretically copies only those files that have changed since the last backup. In Office Systems 1.0 and 2.0, the incremental backup does NOT work that way: it copies everything, just as if you had selected a full backup. Because of this problem, Apple recommends in the Lisa 2 Owner's Guide Release Notes: "Do not back up a hard disk icon to the diskette icon. Instead, make duplicates of the tools or documents you wish to back up, and then move the duplicates to the micro diskette icon." At the end of an incremental backup with release 3.0 software, the error number 941/3 may be displayed. All documents that were changed since the last full backup are copied to the disk. These documents are accessible only from the desktop; they may not be used to restore the ProFile using the Office System 1 diskette's Restore routine. Lisa Office System version 3.1 corrects this problem, allowing you to restore your hard disk from backup diskettes if you wish.
EXTENDED Information section - Apple Internal Use - Service Providers and Support Professional
APPLE EYES ONLY Information section - Apple Need-To-Know Confidential
Article Change History: |