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That's one of the things that caught my attention as well. It seems strange, I would've imagined that at 50TB/day (~500 x 3TB HDDs/month) they could get a nice

by zorlem 14y ago

That's one of the things that caught my attention as well. It seems strange, I would've imagined that at 50TB/day (~500 x 3TB HDDs/month) they could get a nice deal with a direct importer. I guess there is a small PR twist to the whole story ;-) with newegg being a well-known name. I don't know if the 50TB/day figure includes the replacement drives or only expanding the capacity as I guess their failure rate is quite high. edit: fixed a typo.

bruceboughton 14y ago
My guess would be that the 50TB/day figure is before de-duplication and not at all relevant to the actual storage, but even at 10% of that I would expect them to be sourcing them wholesale, not retail. In fact, this whole article is making me doubt my faith in Backblaze as an off-site backup solution.
- recuter 14y ago
  I remember a reddit AMA where they mentioned that they don't actually do any de-duplication. This isn't Dropbox and nowhere as reliable as S3 - its literally as if you're renting remote consumer external drives for offsite backup, for that usage pattern Backblaze makes some sense. And those pods are cool. But I agree, a somewhat flawed approach.
  - setec 14y ago
    I don't think it should be assumed that there is no data redundancy between pods, afterall from prior blog posts it seems like the pods can be taken offline. I'd also posit that a properly constructed RAID array can mitigate the risks of using consumer parts; afterall that is the "I" in RAID.
  - zorlem 14y ago
    >This isn't Dropbox and nowhere as reliable as S3 - its literally as if you're renting remote consumer external drives for offsite backup What are their reliability promises? I think that they're doing some mirroring of the data, but I'm still not sure about the rest of their service details. I'm considering using them for backups, but have not decided yet. I came upon this [1] discussion here, from 3 years ago. I'm diving in :) Yeah, the pods are really sweet and they provide all the design documents [2]! [1]: http://news.ycombinator.com/item?id=803136 http://news.ycombinator.com/item?id=803136 [2]: http://blog.backblaze.com/2011/07/20/petabytes-on-a-budget-v2-0revealing-more-secrets/ http://blog.backblaze.com/2011/07/20/petabytes-on-a-budget-v... edit: added additional details about the design
deleted 14y ago
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by zorlem 14y ago

bruceboughton 14y ago

My guess would be that the 50TB/day figure is before de-duplication and not at all relevant to the actual storage, but even at 10% of that I would expect them to be sourcing them wholesale, not retail. In fact, this whole article is making me doubt my faith in Backblaze as an off-site backup solution.

recuter 14y ago
I remember a reddit AMA where they mentioned that they don't actually do any de-duplication. This isn't Dropbox and nowhere as reliable as S3 - its literally as if you're renting remote consumer external drives for offsite backup, for that usage pattern Backblaze makes some sense. And those pods are cool. But I agree, a somewhat flawed approach.
- setec 14y ago
  I don't think it should be assumed that there is no data redundancy between pods, afterall from prior blog posts it seems like the pods can be taken offline. I'd also posit that a properly constructed RAID array can mitigate the risks of using consumer parts; afterall that is the "I" in RAID.
- zorlem 14y ago
  >This isn't Dropbox and nowhere as reliable as S3 - its literally as if you're renting remote consumer external drives for offsite backup What are their reliability promises? I think that they're doing some mirroring of the data, but I'm still not sure about the rest of their service details. I'm considering using them for backups, but have not decided yet. I came upon this [1] discussion here, from 3 years ago. I'm diving in :) Yeah, the pods are really sweet and they provide all the design documents [2]! [1]: http://news.ycombinator.com/item?id=803136 http://news.ycombinator.com/item?id=803136 [2]: http://blog.backblaze.com/2011/07/20/petabytes-on-a-budget-v2-0revealing-more-secrets/ http://blog.backblaze.com/2011/07/20/petabytes-on-a-budget-v... edit: added additional details about the design

deleted 14y ago

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