File Backup Method

Full

Copy all files selected for backup

Simplest and safest method of backup. Can be run independently of other backups at any time.  Requires the most storage space and takes longest to complete.

Incremental

Copy only the clusters in files that have changed since the last backup.

e.g. A 1GB file that has only changed by 1MB since the last incremental backup will only require a maximum 1MB of storage in the incremental backup.

Requires a previous backup to be present on a locally attached drive. Greatly reduces backup time and reduces backup image size. When restoring from incremental backup, you need the most recent full backup as well as EVERY incremental backup you've made since the last full backup.

Differential

Copy only the clusters in files that have changed since the last full backup.

e.g. A 1GB file that has only changed by 1MB since the last full backup will only require a maximum 1MB of storage in the differential backup.

Requires a previous backup to be present on a locally attached drive. Restoring a differential backup is a faster process than restoring an incremental backup because only two backup container files are needed: the latest full backup and the latest differential.

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Create File Backup Wizard