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Re: Tarsnap GUI shows 0 data archived or backed up
> On Sep 7, 2017, at 4:21 AM, email@example.com wrote:
>> So, can I make it smaller than 1.07 GB? Am I doing something wrong? I can
>> explain what kind data are part of those 1.45 GB (can give a breakup too
>> if needed).
>> Can I compress it more, make de-duplication more aggressive? I have used
>> the default config that came with the app.
> Or should I ask it in a separate thread? Or rather shoot a mail to Tarsnap
> support? (But I see Graham is CCed in this mail thread).
There is one thing to note about de-duplication in tarsnap, compared to some other services. Tarsnap can only de-duplicate across the files *you* are backing up, on a single specific machine you are backing up. This is a side-effect of all the privacy and encryption that tarsnap guarantees.
De-duplication works great in some other situations because the other service is de-duplicating files across (say) 20 different Windows machines. So the first machine may use up 10-gig of space, but all of the rest of the machines might have less than a gig of additional unique files per machine. Tarsnap cannot do that kind of optimization across multiple machines.
Garance Alistair Drosehn = firstname.lastname@example.org
Senior Systems Programmer or gad@FreeBSD.org