Why is 275GB macrium image backup taking over 3 hrs to create & verify

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  1. Posts : 158
    W10
       #1

    Why is 275GB macrium image backup taking over 3 hrs to create & verify


    My image backup image took 1 hr and 10 min to create and 2 additional hours to verify. The bulk of these files are pictures and videos

    Is this normal?
      My Computer


  2. Posts : 10,929
    Win10 x64
       #2

    My 1.4TB backup took almost 6 hours to backup and verify. How fast are the disk drives?

    EDIT: this is a secondary drive with nothing but media on it.
      My Computer


  3. Posts : 56,806
    Multi-boot Windows 10/11 - RTM, RP, Beta, and Insider
       #3

    provlima said:
    My image backup image took 1 hr and 10 min to create and 2 additional hours to verify. The bulk of these files are pictures and videos

    Is this normal?
    275GB is a rather large image backup. My full backup is around 33GB, compresses to about 20GB, and takes 5 minutes to backup and verify. An awful lot depends on what you are backing it up to. If it's an external drive, even on Sata III, it can take quite a while. Your specs say you have an i7, but not what gen. Mine is an i7-7700k OC's to 4.8Ghz. That plays a large role, also. pics and vids will do a lot of compressing slowing down the overall throughput rate. The transfer rate you see is not the pure read it/write it rate. There are computational and compression factors to consider. Your verify rate is slow compared to your backup rate. That would seem to indicate the drive you are backing up to has a low read transfer rate. Lots of factors to consider.

    As a side-note, if the bulk is vids and pics, they are not changing from one backup to the next. You may want to consider getting them off your main drive so as not to continually backup unchanged data. Put them on another drive or in the cloud.
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  4. Posts : 7,724
    3-Win-7Prox64 3-Win10Prox64 3-LinuxMint20.2
       #4

    Hi,
    You can try to create/ verify an image next time using the winpe recovery media and see if it's faster
    I believe it is it's the only way I do it.
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  5. Posts : 26,416
    Windows 11 Pro 22631.3374
       #5

    f14tomcat said:
    275GB is a rather large image backup. My full backup is around 33GB, compresses to about 20GB, and takes 5 minutes to backup and verify. An awful lot depends on what you are backing it up to. If it's an external drive, even on Sata III, it can take quite a while. Your specs say you have an i7, but not what gen. Mine is an i7-7700k OC's to 4.8Ghz. That plays a large role, also. pics and vids will do a lot of compressing slowing down the overall throughput rate. The transfer rate you see is not the pure read it/write it rate. There are computational and compression factors to consider. Your verify rate is slow compared to your backup rate. That would seem to indicate the drive you are backing up to has a low read transfer rate. Lots of factors to consider.

    As a side-note, if the bulk is vids and pics, they are not changing from one backup to the next. You may want to consider getting them off your main drive so as not to continually backup unchanged data. Put them on another drive or in the cloud.
    That is what I do.
      My Computer


  6. Posts : 158
    W10
    Thread Starter
       #6

    Thanks for your response
    i7 6700HQ 2.6GHz @ 2.6Hz with 16GB RAM
    External disc is USB 3 WD My Passport ultra

    Can some running background programs affect the time?
      My Computer


  7. Posts : 56,806
    Multi-boot Windows 10/11 - RTM, RP, Beta, and Insider
       #7

    provlima said:
    Thanks for your response
    i7 6700HQ 2.6GHz @ 2.6Hz with 16GB RAM
    External disc is USB 3 WD My Passport ultra

    Can some running background programs affect the time?
    Not significantly with those specs. Unless you've got something heavy churning, like a batch video conversions process or such. But normal background processes, no. Macrium defaults to High Priority anyway, so doubtful.

    Check to make sure the WD external has it's write cache enabled. That can make a big difference. Does it say it's using "direct i/o" or "system cache"?
      My Computers


  8. Posts : 15,441
    Windows10
       #8

    If you just copied 275GB at say 100MB/s, it would take 2750 seconds = approx 45 mins. Ok, MR is reading a lot, processing it and writing less but doing a lot of work, so an 1 or so to write is not that far off imo. The 2hrs verification seems a bit long but not excessive. Maybe Defender is working overtime?
      My Computer


  9. Posts : 158
    W10
    Thread Starter
       #9

    Check to make sure the WD external has it's write cache enabled. That can make a big difference. Does it say it's using "direct i/o" or "system cache"?[/QUOTE]
    How would you check to see if its write cache is enabled? Should it be enabled?
      My Computer


  10. Posts : 56,806
    Multi-boot Windows 10/11 - RTM, RP, Beta, and Insider
       #10

    provlima said:
    Check to make sure the WD external has it's write cache enabled. That can make a big difference. Does it say it's using "direct i/o" or "system cache"?
    How would you check to see if its write cache is enabled? Should it be enabled?[/QUOTE]This is just an example. In Disk Management, with the drive plugged in, right click the area in the red circle, then Properties. Check the Policies tab.

    Why is 275GB macrium image backup taking over 3 hrs to create & verify-2018-04-10_12h59_18.png

    Yes, it can help 99% of the time. If the drive's controller will support it.
      My Computers


 

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