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  • Time Machine Full vs. Incremental Backups

    From Wade Garrett@21:1/5 to All on Fri Feb 17 08:29:05 2023
    My understanding of Time Machine is that it makes a full backup when you
    add a new external backup disk-- but makes an incremental backup for
    successive ones on that external disk.

    Here's what I don't understand: My external backup disk has about 25
    backups on it going back several months but looking inside each one
    using Finder, there is a complete list of all the folders and files from
    my HD== even the most recent one in which only a handful of files were
    changed or added.

    I thought the later backups would only show the new or changed files???

    --
    "Twenty years of schoolig and they put you on the day shift"
    - Bob Dylan

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From nospam@21:1/5 to wade@cooler.net on Fri Feb 17 08:46:38 2023
    In article <tsnvf2$3ksrm$1@dont-email.me>, Wade Garrett
    <wade@cooler.net> wrote:

    My understanding of Time Machine is that it makes a full backup when you
    add a new external backup disk-- but makes an incremental backup for successive ones on that external disk.

    Here's what I don't understand: My external backup disk has about 25
    backups on it going back several months but looking inside each one
    using Finder, there is a complete list of all the folders and files from
    my HD== even the most recent one in which only a handful of files were changed or added.

    I thought the later backups would only show the new or changed files???

    time machine copies new and changed files and uses hard links for the
    old files, which were previously copied and have not changed, so that
    each snapshot is everything that existed at that moment in time.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Wade Garrett@21:1/5 to nospam on Fri Feb 17 11:00:13 2023
    On 2/17/23 8:46 AM, nospam wrote:
    In article <tsnvf2$3ksrm$1@dont-email.me>, Wade Garrett
    <wade@cooler.net> wrote:

    My understanding of Time Machine is that it makes a full backup when you
    add a new external backup disk-- but makes an incremental backup for
    successive ones on that external disk.

    Here's what I don't understand: My external backup disk has about 25
    backups on it going back several months but looking inside each one
    using Finder, there is a complete list of all the folders and files from
    my HD== even the most recent one in which only a handful of files were
    changed or added.

    I thought the later backups would only show the new or changed files???

    time machine copies new and changed files and uses hard links for the
    old files, which were previously copied and have not changed, so that
    each snapshot is everything that existed at that moment in time.

    Aha, that makes sense. Thanks!

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)