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What should my rolling merge settings be if...  XML
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Chris Caouette



Joined: 30-Aug-08 19:43
Messages: 39
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I do hourly backups and want to keep the last 24 hours, then those would get merged to a single layer for the day and kept for 14 days.
Thanks
Chris

PS: I did a test full recovery to a temporary partition and it booted flawlessly!

Lots of Macs here!
James Bucanek



Joined: 14-Feb-07 10:05
Messages: 1548
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Chris Caouette wrote:I do hourly backups and want to keep the last 24 hours, then those would get merged to a single layer for the day and kept for 14 days.

Create a rolling merge action that:

  • Keeps most recent 1 day

  • 14 Day layers

  • After that, what you keep, how often, and how long is up to you.

    The "Keep most recent" setting basically ignores any layers created in that time period. So keeping 1 day will leave your last 24 hour's worth of captures alone.[*]

    The "14 day layers" create 14 one-day time periods following what you keep. All of the layers within each time period (day) are then merged into a single layer, keeping only the last version of each file.

    The logic repeats using successive periods of weeks, months, and years.

    PS: I did a test full recovery to a temporary partition and it booted flawlessly!

    Always good to know.

    [*] Footnote: The rolling merge time periods are always calculated relative to midnight the morning of the day you run the merge (i.e. 00:00:01). So running a merge at 1:00 AM and 11:59 PM has the same effect. It also implies that any captures done between midnight and now are always ignored, since the ignore period always starts at the last midnight.

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