.in-use File, Multiple Connections, DR Testing.

[Mike_Scholes]

Hi all.

I'm looking to setup another PBS in a separate location purely to test restores in a DR scenario from our S3 backup. When I try to connect another PBS to the same bucket I get an error, as expected, saying the bucket is in use. I could connect my remote test system and select overwrite in use marker but what are the implications to the existing PBS that needs to carry on unaffected? On my test system I deleted the .in-use file and everything carried on without problems.

 

[Chris]

No, what you are doing will lead to data loss if the PBS servers are not in sync, GC may then delete chunks via one instance which are still in use by the other insance. You cannot operate 2 PBS instances on the same s3 datastore backend. The in-use marker is there exactly to protect from this.