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Tarsnap is not reasonable alternative for most users. Consider that I was paying $5/mo for 200GB of storage from CrashPlan. From tarsnap, that would be $50/mo.
by slavik81 9y ago
Tarsnap is not reasonable alternative for most users. Consider that I was paying $5/mo for 200GB of storage from CrashPlan. From tarsnap, that would be $50/mo.
And, frankly, my measly 200GB isn't much data. A 2TB HDD costs under $100 and could cost $500/mo to back up with tarsnap. It would still have been $5/mo with CrashPlan.
I get that Colin is basically just charging the S3 costs plus a small margin, but the reality is that S3 is far too expensive to be used to store low-value consumer data.
- X86BSD 9y agoI backup quite a bit and after deduplication with tarsnap it's not nearly as much.
- slavik81 9y agoWhile I'm sure there would be minor savings, the price differential is so large that the data would need to be >90% duplicate to be cost-competitive even for small data sets.
- res0nat0r 9y agoI've been using duplicacy and it supports a bunch of different remote endpoints. https://duplicacy.com/ https://duplicacy.com/
- skrause 9y agoI hear that a lot about tarsnap, do you all mainly back up VMs or log files? The majority of my most important backup data is my photos. I don't see how tarsnap could duplicate (or even further compress) that.
- zippergz 9y agoI evaluated tarsnap for my photos a while back, and this was the conclusion I came to. I would have been paying for basically the entire size of my photo library, which is quite large.
- SimonPStevens 9y agoThat's kind of another problem though. No way to predict costs in advance. All you can do is know the upper bound. I have approx 2.5tb on CrashPlan, so that gives me an upper bound of $625 per month. Maybe it might be 50% lower when deduped, maybe more, maybe less. Who knows. Not really a pricing model I can make a decision on. Tarsnap looks great for certain use cases. But it doesn't really make sense for home users with a large amount of data.
- X86BSD 9y agoYou can do a dry run with Tarsnap to see how much it would transfer and how much it would deduplicate before ever running for Realz(tm). Using the --dry-run flag.
- munchhausen 9y agoThe Tarsnap client has a "dry-run" mode, which will dedup your data and tell you how much GB will it take up. Based on that, you can then make a calculation of how much will it cost.
- SimonPStevens 9y agoDidn't know this. Thanks. I might give it a look as I'm being forced to switch provider anyway.
- deleted 9y ago[deleted]
- votepaunchy 9y agoThe most expensive S3 storage tier is $0.023/GB/month, or $4.60/month for 200 GB. That's quite a markup to $50.
- slavik81 9y agoIt seems the price of S3 has dropped significantly over the years while tarsnap has remained more or less constant. I guess my statement was out of date.