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Merge pull request #136 from kazuyukitanimura/glacier

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Adding another Gotcha for Glacier
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Max Zanko 2016-10-26 18:33:10 -07:00 • committed by GitHub
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@ -982,6 +982,7 @@ Glacier
- 🔸Getting files off Glacier is glacially slow (typically 3-5 hours or more).
- 🔸Due to a fixed overhead per file (you pay per PUT or GET operation), uploading and downloading many small files on/to Glacier might be very expensive. There is also a 32k storage overhead per file. Hence it’s a good idea is to archive files before upload.
- 🔸Glacier’s pricing policy is reportedly pretty complicated: “Glacier data retrievals are priced based on the peak hourly retrieval capacity used within a calendar month.” Some more info can be found [here](https://medium.com/@karppinen/how-i-ended-up-paying-150-for-a-single-60gb-download-from-amazon-glacier-6cb77b288c3e#.wjl4dbgza) and [here](https://news.ycombinator.com/item?id=10921365).
- 💸Be aware of the per-object costs of archiving S3 data to Glacier. [It costs $0.05 per 1,000 requests](https://aws.amazon.com/s3/pricing/). If you have large numbers of S3 objects of relatively small size, [it will take time to reach a break-even point (initial archiving cost vss lower storage pricing.)](https://alestic.com/2012/12/s3-glacier-costs/)
RDS
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