If you have a lot of data that you want to ingest and store, without keeping it in an active instance, you might want to take a look at Joyent Manta[1]. We allow you to run compute jobs directly on the storage servers themselves -- basically anything you can do in a UNIX environment with a script you can run against an object in the store, from "grep" up to "python" and beyond. If you were to select "single copy" storage, the public service pricing[2] might be more interesting for you; if you grow too big or want to move onto your own hardware, the stack is open source[3] and/or we can sell you support!

Disclaimer: I work at Joyent.

[1]: https://www.joyent.com/manta

[2]: https://www.joyent.com/pricing/manta

[3]: https://github.com/joyent/manta