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Time Machine Backup Issue Now Resolved in 9.5.3! [Updated]

Bianson

**Update 2**

9.6.1 is now available and should resolve the issue.

 

**Update**

We are aware that some users are still experiencing the error in 9.5.4, apologies. We are looking into the matter and may reach out to you individually for logs.

 

Hello,

The Time Machine issue which caused slow back-ups in 9.5.2 is now resolved in 9.5.3. The rollout starts today and you will be automatically upgraded. The rollout is staggered, but everyone should have 9.5.3 by October 26th.

Regards,

Bob



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  • 0
    9.5.3 has exact same problem for me... high CPU (90%+) for "backupd" task, no progress on backup (stuck on "preparing backup" for hours!) After uninstalling Sophos AV and rebooting, backup completes in a few minutes.
  • 0 in reply to MikeCox

    FWIW, Sophos updated to 9.5.3 when I wasn't looking. I did not test it directly but figured rebooting first would be a good idea.

    After rebooting, I manually started my daily backup. It took a couple of minutes to determine a bit over 3GB need backup and projected about three hours would be necessary but watching the actual data count being backed up, the speed picked up and the backup was complete in less than 5 minutes. CPU usage was never very high.

    So it looks like 9.5.3 is a significant improvement, at least in Yosemite.

  • 0 in reply to ZRL1

    Thanks for the feedback. I had no issues with Time Machine NAS backups prior to macOS Sierra; I had one mac running Mavericks and another running El Capitan. Both have Sophos AV Home version.  Neither had the "Preparing backup....." issues prior to upgrading to macOS Sierra. Once I upgraded both machines to macOS Sierra, that's when I started experiencing problems.  It appears to be an issue of how sophos works specifically with macOS Sierra. For now, I've disabled On-access scanning and everything works fine.

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  • 0 in reply to ZRL1

    Thanks for the feedback. I had no issues with Time Machine NAS backups prior to macOS Sierra; I had one mac running Mavericks and another running El Capitan. Both have Sophos AV Home version.  Neither had the "Preparing backup....." issues prior to upgrading to macOS Sierra. Once I upgraded both machines to macOS Sierra, that's when I started experiencing problems.  It appears to be an issue of how sophos works specifically with macOS Sierra. For now, I've disabled On-access scanning and everything works fine.

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  • 0 in reply to Jerome Peterson

    I am running Sophos Anti Virus on Mac running El Capitan. As reported earlier along with all others my Time Machine backups have been running very slow.

    Sophos has just upgraded to v 9.5.3. I have to report: 

    • No material improvement in speed of Time Machine backups;
    • If I switch off Sophos on-access scanning there is a huge improvement in the speed of Time Machine backups.

    I have been waiting patiently for v 9.5.3 under the assurances from Sophos that this problem would be fixed (a problem that did not exist prior to v 9.5.2). This outcome is EXTREMELY disappointing!!

    We need assurances (and a time frame) from Sophos that this problem will be fixed. Absent this I (and I am sure others) will need to uninstall Sophos and look elsewhere for an anti-virus solution for my Mac.

     

    PS: I presume that on-access problems are at the source rather than the destination of the Time Machine backup. Hence excluding the destination from Sophos on-access scanning does not help the Time Machine backup problem???

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