Backblaze latest publicly released numbers.
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Backblaze came out with their latest stats blog post this morning. I haven't read the current one yet, but it is the largest number of drives that we get public failure numbers for. Just remember that they use all consumer class, well, everything.
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A couple big differences here from their previous reports.
They're buying drives in bulk now, 5000 to 10000 at a time. Apparently Seagate and HGST are the only companies that can actually deliver on large orders. I find that sort of odd, considering HGST is now owned by WDC. Leads me to believe that HGST drives are still the quality products they've been in the past. Hope that continues to be the case.
Failure rates are trending down. That's just good news.
Also, 4TB still seems to be the best cost per GB.
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I love these reports
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@travisdh1 said in Backblaze latest publicly released numbers.:
Failure rates are trending down. That's just good news.
Sure failure rates are trending down, but only in this specific use case. They turn them on and don't turn them off again. They probably also have a fairly high use rate the majority of the time. These are things that home users don't frequently match.
I'm just mentioning that this isn't really a good way to know how this will work for consumers. it's great for Google though, who does something similar.
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@Dashrender Yep, exactly.
I kinda wish they'd just use pure erasure coding instead of layering it on top of RAID6 arrays. I mean, if you're doing erasure coding correctly, wouldn't an additional RAID array be additional complexity that's not needed?
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@Dashrender said in Backblaze latest publicly released numbers.:
Sure failure rates are trending down, but only in this specific use case. They turn them on and don't turn them off again. They probably also have a fairly high use rate the majority of the time. These are things that home users don't frequently match.
Reliability numbers aren't for home users, they are for businesses.
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@aaron said in Backblaze latest publicly released numbers.:
@travisdh1 said in Backblaze latest publicly released numbers.:
@Dashrender Yep, exactly.
I kinda wish they'd just use pure erasure coding instead of layering it on top of RAID6 arrays. I mean, if you're doing erasure coding correctly, wouldn't an additional RAID array be additional complexity that's not needed?
Quoted from the linked article:
Note: Our stand-alone Storage Pods use RAID-6, our Backblaze Vaults use our own open-sourced implementation of Reed-Solomon erasure coding instead.
Disclaimer: I'm a Backblaze sysadmin, blah, blah, etc, etc
I missed that bit. Much better than what I thought.
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