I've been having trouble trying to pin down why my export of a production volume is getting stuck @ 12% after 12+ hours when I can export a test volume that is half the size in less than 10 hours. 

The only change I can see is that I enabled checksums on the production volume recently. I have not been able to run a full report yet as it freezes up before it finishes.

I attempted another export and this time the database was restarted during the night and it gave me an error log that pretty much only contained 131k checksum errors.

If I disable checksums, will the export go faster? Are there any files I need to remove from previously enabling checksums?

One other change is the test system was on 10.3.0 when I tried this and production and test are now 10.3.1.

Servers: 

1. Database/images

2. all other server services