Redundant Array of Independent Clouds
tahoe-lafs.org
Redundant Array of Independent Clouds
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Re: Redundant Array of Independent Clouds
#2See screenshots: http://www.sickness.it/crazycloudexperiment1.png and http://www.sickness.it/crazycloudexperiment2.png from Diego "sickness" Righi's notes: http://www.sickness.it/crazycloudexperiment.txt
Re: Redundant Array of Independent Clouds
#3Even before "cloud" or online storage was too hot or even showed up yet, I was thinking of doing this.
Time was Google providing "unlimited" gmail storage and fuse gmail-fs was just released. I looked for another fuse fs like a hotmail-fs but did not push hard on it. I could not find and let my idea die.
It was hard to do and time consuming, but marginal gain would be small. Also I'm a f lazy system administrator. I hate coding :)
Re: Redundant Array of Independent Clouds
#4nice work zooko et al :)
my understanding is that tahoe-lafs is meant to be used as a live filesystem. how does the redundancy configuration affect latency? i would guess a cloned volume ("RAID 1") would be faster than a distributed volume (e.g. "RAID 5" or "RAID 6").
Re: Redundant Array of Independent Clouds
#5Cool! First thoughts:
* how many of the supported options boil down to Amazon S3?
* is this the new "upload their important stuff on ftp, and let the rest of the world mirror it"? https://groups.google.com/group/linux.dev.kernel/msg/76ae734...
* whoever put together this newsletter is clearly doing a great job for that community
Re: Redundant Array of Independent Clouds
#6I;m sure many of thought of this, nice to see someone do it.
My idea for backup would use something like DIBS ( http://www.mit.edu/~emin/source_code/dibs/) but instead of peers, use many free salami slice sizes of storage from cloud/hosting platforms.
Re: Redundant Array of Independent Clouds
#7nice work zooko et al :) my understanding is that tahoe-lafs is meant to be used as a live filesystem. how does the redundancy configuration affect latency? i would guess a cloned volume ("RAID 1") would be faster than a distributed volume (e.g. "RAID 5" or "RAID 6").
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Re: Redundant Array of Independent Clouds
#8 Redundant Array of Independent Networked Storage or RAINS would sound so much cooler considering it is "cloud" storage.
Re: Redundant Array of Independent Clouds
#9Cool! First thoughts: * how many of the supported options boil down to Amazon S3? * is this the new "upload their important stuff on ftp, and let the rest of the world mirror it"? https://groups.google.com/group/linux.dev.kernel/msg/76ae734... * whoever put together this newsletter is clearly doing a great job for that community
Amen!! Patrick "marlowe" McDonald has really given us a gift by publishing the Tahoe-LAFS Weekly News every week. We're coming up on the Tahoe-LAFS Weekly News one-year anniversary next week. ☺
Re: Redundant Array of Independent Clouds
#10Nice idea! This paper (http://www.cs.cornell.edu/~hweather/publications/racs-socc20...) called RACS from Cornell explored the same space about two years ago, but it's really nice to see it rendered to practice in usable filesystem form.