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A standalone full backup might be an optimal solution if you often roll back the system to its initial
state or if you do not like to manage multiple files. If you are interested in saving only the last data
state to be able to recover it in case of system failure, consider the differential backup. It is
particularly effective if your data changes tend to be few compared to the full data volume.
The same is true for incremental backup. These are most useful when you need frequent backups and
the ability to roll back to a specific point in time. Having created a full backup once, if you then create
an incremental backup each day of a month, you will get the same result as if you created full
backups every day. Incremental images are considerably smaller than full or differential images.
Incremental or Differential?
The difference is typically that in an incremental backup, only the files changed or added since the
last time the backup ran are added to the archive. With a differential backup, all the files changed or
added since the initial full backup, are added to the archive. Thus, differential backups take longer to
run than incremental backups. When recovering from an incremental backup, the program must copy
the entire initial backup and then step through each of the previous backups to retrieve all the
updated files. A differential backup, on the other hand, can be recovered quicker because the
software must copy only the original backup and the most recent one.
An incremental or differential backup created after a disk is defragmented might be considerably
larger than usual. This is because the defragmentation program changes file locations on the disk and
the backups reflect these changes. Therefore, it is recommended that you re-create a full backup
after disk defragmentation.
3.3 Backup file naming conventions
Let's remember that Acronis True Image Home may split a full or incremental archive into volumes
either when a user sets the splitting option or when a large backup having a size bigger than 4GB is
saved to a FAT32 disk. See "Backup archive components" in Acronis True Image Home basic concepts
(p. 10).
Though users may assign any name to backups, many would still prefer using automatic naming and
the below information may come in handy when viewing the contents of a backup archive storage in
Windows Explorer and trying to figure out, e.g. which are full and which are incremental.
1) When you agree to use the One-Click Backup offered during the first start of the newly installed
program, the resultant backup file is named "SystemBackup_mm_dd_yyyy.tib", where mm_dd_yyyy
is the date of backup creation in the following format: month (one or two digits), day (one or two
digits), year (four digits).
When saved to a FAT32 disk, such backup may be split into volumes with the names
SystemBackup_mm_dd_yyyy1.tib, SystemBackup_mm_dd_yyyy2.tib,
SystemBackup_mm_dd_yyyy3.tib, etc.
As in this case the subsequent automatically scheduled backups will replace the previous one (once
every seven days by default) only after the next backup finishes (to keep the old backup in the event
of the current backup's failure), the backup filename(s) will be alternately named
SystemBackup_mm_dd_yyyy.tib and SystemBackup_mm_dd_yyyy(1).tib.
2) In some cases when you create a new full backup task at a new destination, the backup gets the
name "MyBackup_mm_dd_yyyy.tib".
If a backup is split (either automatically, e.g. due to the 4GB file size limit on FAT32 disks or when
configuring a backup task), the constituent backup files (volumes) are named as follows:
