Incremental or Full BU after Defragmenting?

Discussion in 'Acronis True Image Product Line' started by TomBrooklyn, Jan 2, 2009.

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  1. TomBrooklyn

    TomBrooklyn Registered Member

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    Shortly after doing a Full Backup, I removed about 10 small programs and did a defragmentation of my hard drive which seemed to be pretty well fragmented (19GB fragmented with 45,000 fragments on a 160GB drive)

    Is continuing with incrementals a good backup method for a while or would it be better to do a new full backup?
     
  2. crofttk

    crofttk Registered Member

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    It's up to you - how tight are you on available storage for incrementals? An incremental may well be 19GB but, as long as you don't defrag again, subsequent incrementals should be "normal" in size. If you don't want that big of an incremental, do another full backup and then follow incrementals up until you defrag again.
     
  3. TomBrooklyn

    TomBrooklyn Registered Member

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    Hi,
    That first incremental actually wound up being 60GB. The full backup it appended was 119GB. I see it used a lot of space. It's good to know that it's still functional though. OK, thanks. =Tom
     
  4. crofttk

    crofttk Registered Member

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    Wow, I thought later it could perhaps be twice the 19, or 38GB at worst. Anyways, now you know.:ouch:
     
  5. Brian K

    Brian K Imaging Specialist

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    Tom,

    A day or two after a full backup (preceded by a defragmentation), I expect the differential size to be 1 to 2% of the base backup size. Just a guideline. A month later the diffs are about 6% of the base backup size.
     
  6. TomBrooklyn

    TomBrooklyn Registered Member

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    Hi,
    I did another full backup, then another defrag followed by an incremental. The incremental was much smaller this time. I think the first time it was probably very big because the hard drive hadn't been defragged in a long time and it was very fragmented.
     
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