ODB 1.77 and Time Machine backups

Reg Paling reg.paling at lokanet.com
Tue Mar 1 01:43:04 UTC 2022

Hi Michael,

I will be interested to hear what others have to say here.

You will want to exclude your datafile from Time Machine backups because 
it will constantly be trying to copy the datafile while it is active 
during the day.  You need to either supplement Time Machine with another 
backup program which for instance is executed once during the night, or 
you could have a scheduled job which could copy the datafile to a 
different place from where Time Machine can pick it up.

Strictly speaking, you should disconnect all users and shut down ODB 
before copying.  However in my experience, if the backup or file copy is 
running in the middle of the night when you can be sure there is no 
activity, even if there are connected users, the resulting backup can be 
relied upon.  Of course, you would have to be sure there were no Timer 
procedures firing during the night.

As I said, I will be interested in the opinions and horror stories of 


On 1/3/2022 12:27 pm, Michael Houlberg wrote:
> $Listers:
> I’ve started using ODB 1.77 running as a service on Mac using tech note TNEX0010.  My client asks since ODB is running all the time, can he rely on backups to his .df1, .df2, and other segments as trustworthy?  The thinking is that maybe ODB needs to shut down before a backup can accurately be made?
> Also, we’re having problems getting the other computers, other than the ODB host, to connect with the OmnisSQL DAM.  Has anyone else seen problems here?
> Thanks,
> Michael Houlberg
> Houlberg Development, LLC
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