1. Home
  2. PowerArchiver 2021
  3. Tech Support
  4. Backup


Backup

  • B

    When you perform a new backup …ie i have created a backup of documents. Over the next week I have added and subtracted from that folder. When I perform a back up a week later… does PA overwrite the entire file or does it just add and subtract what ever was added or subtracted.

    is there a setting I can use to just back up the files that have changed?
    Alex

    0
  • Luxor
    Alpha Testers

    That would depend on the backup type.

    From the help file…

    “Backup Type” - there are several different backup types you can use:
    “Normal” - Performs classic backup without influencing archive attributes. All selected
    files are added to the backup.
    “Full” - Performs classic backup and resets archive attribute. All selected files
    are added to the backup.
    “Incremental” - Backups only files that have archive attribute set and after backup resets
    their archive attribute. This mode is suitable for backing up only changed files.
    “Differential” - Backups only files that have archive attribute set but does not reset their
    archive attribute after backup.

    Personally I just use normal backup.

    I would guess that incremental or differential would fill your needs.

    0 B 1 Reply
  • B

    Thanks Luxor
    I read that in the help manual but to be honest and sound like a dumb a–

    I dont know what all of it means?

    “Backups only files that have archive attribute set and after backup resets
    their archive attribute”

    “does not reset their archive attributes after backup”

    Huh?

    In plain english … how is each of them different … ie … what happens when you use normal and why do you choose to use it.

    Alex

    0 TBGBe 1 Reply
  • spwolf
    conexware

    Incremental is what you seek :-)

    0 Luxor 1 Reply
  • Luxor
    Alpha Testers

    @boriqua:

    Thanks Luxor
    I dont know what all of it means?

    It is confusing isn’t it.
    Maybe this Wiki will help.

    spywolf has given you the answer you need though. :)

    what happens when you use normal and why do you choose to use it.

    It creates a full back up every time and I always have a month of past backups sitting there, so if I accidentally delete something then it’s not hard for me to get it back.

    I make disk images too so I’m well covered anyway.

    0
  • TBGBe

    @boriqua:

    I dont know what all of it means?

    [ see also [url]http://kb.iu.edu/data/aift.html ]

    The Operating system maintains four “attributes” for each file. PowerArchiver uses the “archive” attribute.

    When a file is created, this attribute is SET.
    When a file is changed it is also SET.
    When a file is backed up, it is (usually) RESET.

    So :-

    “Normal” - Performs classic backup without influencing archive attributes. All selected files are added to the backup.

    • the attribrute is not changed.

    “Full” - Performs classic backup and resets archive attribute. All selected files are added to the backup.

    • the attribute is RESET after backup.

    “Incremental” - Backups only files that have archive attribute set and after backup resets their archive attribute. This mode is suitable for backing up only changed files.

    • ONLY files with attribute SET are backed up. attribute is then RESET.

    “Differential” - Backups only files that have archive attribute set but does not reset their archive attribute after backup.

    • ONLY files with attribute SET are backed up, attribute is not RESET (so remains SET).
    0
Log in to reply