Backup Types; Customizing Your Backup - Novell NETWARE 6-DOCUMENTATION Manual

Backup Types

Customizing Your Backup

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Storage Management Services Administration Guide
SBCON has three types of backup sessions:
Full backup—Backs up the entire file system of the selected target
regardless of whether the data has changed since the last backup, and
clears the Modify bit
Differential backup—Available only for the file system; backs up only
data that has been changed since the last full or incremental backup.
When you perform a differential backup, the modify bit is not cleared
after the backup. All files modified since the last full backup are included
in the backup (unless they have been deleted). Each differential backup
uses more media and is slower than an incremental backup because it
backs up more files.
IMPORTANT:
Do not interchange differential backups and incremental backups.
If you do, the differential backup will not contain all changes since the last full
backup. Use full backups interspersed with differential backups or full backups
interspersed with incremental backups.
Incremental backup—Available only for the file system; backs up only
data that has been changed since the last full or incremental backup
(whichever was last). Incremental backup sessions back up only files that
have the modify bit set (that is, files that changed since the last full or
incremental backup session when the modify bit was cleared).
All backup types contain advanced options to allow you to customize your
backup. These options allow you to
Choose subsets of data to back up
You can choose specific subsets of a data set to exclude from or include
in the backup session by selecting major resources, such as volumes, files,
directories, or path.
See "Exclude and Include Options" on page
Specify how to scan what you are backing up
See "Scan Data Sets" on page
after the backup.
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