=item Full Backup
-A full backup is a complete backup of a share. BackupPC can be configured to
-do a full backup at a regular interval (often weekly). BackupPC can also
-be configured to keep a certain number of full backups, and to keep
-a smaller number of very old full backups.
+A full backup is a complete backup of a share. BackupPC can be
+configured to do a full backup at a regular interval (typically
+weekly). BackupPC can be configured to keep a certain number
+of full backups. Exponential expiry is also supported, allowing
+full backups with various vintages to be kept (for example, a
+settable number of most recent weekly fulls, plus a settable
+number of older fulls that are 2, 4, 8, or 16 weeks apart).
=item Incremental Backup
last full backup, giving every backup a "full" appearance. This makes
browsing and restoring backups easier.
+=item Partial Backup
+
+When a full backup fails or is canceled, and some files have already
+been backed up, BackupPC keeps a partial backup containing just the
+files that were backed up successfully. The partial backup is removed
+when the next successful backup completes, or if another full backup
+fails resulting in a newer partial backup. A failed full backup
+that has not backed up any files, or any failed incremental backup,
+is removed; no partial backup is saved in these cases.
+
+The partial backup may be browsed or used to restore files just like
+a successful full or incremental backup.
+
+With the rsync transfer method the partial backup is used to resume
+the next full backup, avoiding the need to retransfer the file data
+already in the partial backup.
+
=item Identical Files
BackupPC pools identical files using hardlinks. By "identical
projects / BackupPC.git / blobdiff