David,

You have started a good set of questions here. I have thrown it to my higher experts. I am having a hard time finding people with both sets of knowledge, e.g. de-dupe AND databases such as SQL.

I do know that if you back up daily using Jungle Disk, all the data you set to back up will be backed up. It will only upload the new or changed data (not in the traditional forms of incremental or differential backups). At this point, I wouldn't consider this your only backup nor feel comfortable simply restoring it in its entirety (although I have done multiple test restores).

The final answer is still out as I am waiting to hear back from Raja. I sort of sent him out a "feeler" email to see if he was aware of de-dupe. Apparently, he is as he sent back very correct information. But, I didn't ask him about how it related to SQL (that is is area of expertise). So, that answer will likely be the one.

The reason it is confusing and over my head at the moment, is the fact that within de-duplication, there is backing up at different levels such as bits, files and blocks.

Is it clearer now? smile

Bert
Pediatrics
Brewer, Maine