Backup and Restore with Macrium Reflect  

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  1. Kari's Avatar
    Posts : 17,434
    Windows 10 Pro
    Thread Starter
       #400

    cereberus said:
    I will give it a go. It was a bit unclear on site about the download i.e. you could use it on an existing licence.
    Download also gives five 30-day trial Macrium Agent licenses. A PC or VM managed with Site Manager needs a valid Home or Workstation license, or you can install Macrium Agent to it in which case no Reflect installation is not needed on that PC / VM.
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  2. Posts : 101
    Windows 10 Home 64bit Version 1809
       #401

    kado897 said:
    Yes that would take a long time so you don't want to do that more often then you have to. One thing that can cause a new full image to be made is a change in the definition. Could you post a clip of the schedule page of the configuration so that we can see what you have set up. This is mine as an example.
    It would be best to move as much of your data onto a separate partition if you can. That would cut the time for a full image to manageable levels.
    Here's the schedule page:
    Backup and Restore with Macrium Reflect-schedule.jpg
    On the 25/05/18 it did a full at 5pm. On 28/05/18 at 00.00 it did a diff then at 02.36 another diff & at 23.00 a full. On 29.05.18 at 10.17 it did a diff. I'm slightly puzzled so this is why I'd like to start again.
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  3. kado897's Avatar
    Posts : 39,496
    Windows 10 Home 64bit v20H2 and insider builds
       #402

    FrankS said:
    Here's the schedule page:
    Backup and Restore with Macrium Reflect-schedule.jpg
    On the 25/05/18 it did a full at 5pm. On 28/05/18 at 00.00 it did a diff then at 02.36 another diff & at 23.00 a full. On 29.05.18 at 10.17 it did a diff. I'm slightly puzzled so this is why I'd like to start again.
    So am I. That is very strange. It looks all set up correctly to me. The only time I've had a scheduled task run at the wrong time was when the PC was off. It runs when the PC is started up again. As I mentioned earlier you can get a new full image if you have made changes to the definition and also changes to the partitioning on the disk.

    It may be worth starting over with a new definition into a different folder. Sorry I can't be of more help.
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  4. Posts : 9
    Windows 10 Pro & Home
       #403

    One question I have not seen addressed is what effect defragmentation will have on the size of a Diff. Does Macrium look at the physical structure of the disk to determine changes or the logical structure? Also, if I schedule a Diff and then defrag the disk and need to restore the image, what impact will that have?

    Thinking about it makes me think this is a dumb question but ignorance is fixable and I'm unsure enough to ask anyway.

    Also, I'd appreciate some kind of response to my earlier question about scheduling.

    Thanks
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  5. CountMike's Avatar
    Posts : 18,369
    W10+Developer Insider + Linux
       #404

    Dino Rider said:
    One question I have not seen addressed is what effect defragmentation will have on the size of a Diff. Does Macrium look at the physical structure of the disk to determine changes or the logical structure? Also, if I schedule a Diff and then defrag the disk and need to restore the image, what impact will that have?

    Thinking about it makes me think this is a dumb question but ignorance is fixable and I'm unsure enough to ask anyway.

    Also, I'd appreciate some kind of response to my earlier question about scheduling.

    Thanks
    Probably same effect as with any other large file.

    Backup and Restore with Macrium Reflect-image.png
    As you can see, Size and Size on disk are pretty close so .mrimg file is somewhat fragmented but not too much.
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  6. kado897's Avatar
    Posts : 39,496
    Windows 10 Home 64bit v20H2 and insider builds
       #405

    Dino Rider said:
    One question I have not seen addressed is what effect defragmentation will have on the size of a Diff. Does Macrium look at the physical structure of the disk to determine changes or the logical structure? Also, if I schedule a Diff and then defrag the disk and need to restore the image, what impact will that have?

    Thinking about it makes me think this is a dumb question but ignorance is fixable and I'm unsure enough to ask anyway.

    Also, I'd appreciate some kind of response to my earlier question about scheduling.

    Thanks
    That's a good question. I noticed when I had the OS on a spinner that a defrag would increase the size of subsequent differentials quite considerably so I suspect it does look at the physical structure. I always used to schedule defrags to be just before a full image.
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  7. cereberus's Avatar
    Posts : 12,014
    Windows10
       #406

    kado897 said:
    That's a good question. I noticed when I had the OS on a spinner that a defrag would increase the size of subsequent differentials quite considerably so I suspect it does look at the physical structure. I always used to schedule defrags to be just before a full image.
    Macrium Reflect Free uses smart sector copying by default - you can set it to do a full bit by bit copy but that is rare. File defragmention should make little difference. Indeed if partition was fragmented, and you backed it up and restored it, the partition should be much less fragmentes afterwards.
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  8. kado897's Avatar
    Posts : 39,496
    Windows 10 Home 64bit v20H2 and insider builds
       #407

    cereberus said:
    Macrium Reflect Free uses smart sector copying by default - you can set it to do a full bit by bit copy but that is rare. File defragmention should make little difference. Indeed if partition was fragmented, and you backed it up and restored it, the partition should be much less fragmentes afterwards.
    And yet I have seen it make a difference so the algorithm seems to be more complex. My understanding of Intelligent sector copying is that the filesystem (free space bitmap?) is used to determine if a sector has data in it and therefore should be copied.
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  9. cereberus's Avatar
    Posts : 12,014
    Windows10
       #408

    kado897 said:
    And yet I have seen it make a difference so the algorithm seems to be more complex. My understanding of Intelligent sector copying is that the filesystem (free space bitmap?) is used to determine if a sector has data in it and therefore should be copied.

    Sure- possibly so, but the real point is how it restores things.
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  10. kado897's Avatar
    Posts : 39,496
    Windows 10 Home 64bit v20H2 and insider builds
       #409

    cereberus said:
    Sure- possibly so, but the real point is how it restores things.
    Agreed and that is likely to reflect the defagged image. No sure how Fast Delta Restore plays into all this. As Paramount have said the details of their methods are a commercial secret.
      My Computer


 
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