Thanks for posting on PISquare!
That error is a rather generic error. To help us narrow it down, can you let us know what version of the PI Data Archive you are trying to get a backup of? How are you getting the backup? Are you using a third party tool, using System Management Tools, etc?
At first glance, you can be running into:
Would it be possible to attach the message logs from the time period in which you tried to collect a backup?
I would also recommend contacting tech support for faster response times on this issue. You can contact us at: Contact Us
Well, The version of PI data Archive is 2012 (3.4.390.16) and i'm using SMT, but 1 week ago a achieve a backup perfectly, but now, for some reason, the same proccess, fail.
I'll apreciate if you can guide me for find a solution , because it is the last task before put in running mode the PI server on the new machine....
It's still hard to say without the message logs. What OS is the PI Data Archive running on?
I really urge you to contacting tech support as we can get a remote session and work with you in a more effective manner.