10.0.3 update killed Time Machine backups

Hello Brian,

my name is Frank and I'm an engineer here at Sophos and look right now into your TimeMachine issue.

especially in 10.0.3 we made improvements to not fail backups to SMB shares on NAS devices, so here are some questions:

1) what type of NAS device are you using?

2) does the error persist if you turn off 'file scanning' and/or 'ransomware detection'?

3) does a backup succeed after you remove and then re-add the backup volume in the time machine preferences?

Frank

ESG - Mac Endpoint

Hello Brian,

my name is Frank and I'm an engineer here at Sophos and look right now into your TimeMachine issue.

especially in 10.0.3 we made improvements to not fail backups to SMB shares on NAS devices, so here are some questions:

1) what type of NAS device are you using?

2) does the error persist if you turn off 'file scanning' and/or 'ransomware detection'?

3) does a backup succeed after you remove and then re-add the backup volume in the time machine preferences?

Frank

ESG - Mac Endpoint

Hi Frank,

Here are the answers:

1. Synology DS-918+ with DSM 6.2.3-25426 Update 3 (not the DSM 7 beta)

2.  Yes. I turned off file scanning, ransomware, and then both.  Nothing worked.

3.  No.

Hi Frank,

For your information, I have

1) WD EX2 Ultra, f/w 5.09.115

2) I have turned off file scanning and ransomware and it works. I will send more info when the backup has finished (it's a bit big)

3) Did not have any effect.

Update - the backup starts, slows to crawl, then gets stuck on 'Calculation time remaining', Although it is still backing up at a ridiculously slow rate.

I just was researching this "failed to open '/Volumes/Backups of MacBookPro/.iotest', error: 5 Input/output error". Are you willing to create a temporary new share on your NAS and assign it to time machine and communicate the results of a backup attempt?

Sure, give me a moment to set it up.

It started the backup.  It's at 26.43GB of 1.07TB.  It's going very slowly as usual.  Stay tuned.

Ok, so it worked fine for a couple of days and now dead again since 22nd. 

Just turned off real time scanning for files & internet &All runtime protection, and it seems to be working.

Turn them bacon, and it fails.

Hi, the backup completed and I'm starting a second one to see what happens.  I still need to use my original backup as that goes backs months.

The Time Machine backup, 1st and 2nd, worked.  I just noticed however that the crypto guard was off as was real time scanning and files.  I'm trying a third backup with all protections enabled.