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Cloud Storage for $2 per TB per month

blog.sia.tech

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Re: Cloud Storage for $2 per TB per month

#22

On a related topic, I've had a ton of problems finding a cloud storage system that will reliably handle files around 100-200gb. Does anyone have a recommendation for a service that can handle that file size with ease?

Any object storage system (S3, Backblaze B2, Azure Blob, GCP) should be able to handle those file sizes with proper chunking into smaller parts (limit details below per object store). S3: https://docs.aws.amazon.com/AmazonS3/latest/dev/mpuoverview.... (Max object size: 5TB, Max single multipart size: 5GB) Backblaze B2: https://www.backblaze.com/b2/docs/large_files.html (Max file size: 10TB, Max single object size: 5G…

S3 max single object size is 5TB. The 5GB limit is for single part upload API. You can use the multi-part API to upload single object in multiple parts.

Re: Cloud Storage for $2 per TB per month

#23
post #20
post #7

I've been using Sia for about three months to backup some personal files. Nothing crazy, but it seems to work well. I'm looking forward to seeing this project mature as well as have some more layers build on top of it moving forward. I really wish the client offered synchronization or access across multiple devices. For now you have to try third party layers on top of Sia to accomplish this.

Is this an ad?

This isn't a new project. It's been around for many years.

Re: Cloud Storage for $2 per TB per month

#25

I work in telecom/datacenter infrastructure and this is fanciful. The whole way they take the wattage load of one machine and then hand wave away all of the rest of the costs of either building and running a datacenter, or paying ongoing monthly colocation costs... Is just scary. I truly don't mean to offend anyone but this looks like a bunch of enthusiastic dilettantes. Generators? UPS? Cooling costs? Square footage…

It sounds like they're intentionally forgoing backup power and UPSs, as well as 24/7 staffing. However, you're right that this is probably pretty optimistic.

Re: Cloud Storage for $2 per TB per month

#27

How did they go from 8 SATA ports to 32 SATA devices? The linked cable uses a SAS host/connector. Was a SAS card left out of the parts list?

Using "8x 4 way SATA data splitters".

What i don't get is why they don't use 14TB HDDs, they are only 15% more expensive per TB. On the other hand they'd need 2.33x less PCs at $550 each, plus their power use.

So instead of every 7 PCs with 6TB HDDs they'd need 3 with 14TB HDDs.

PS: They could also use a mainboard with 10 SATA ports instead of 8. They are only $15 more than the chosen board. Adding one or more PCIe 8x SATA controller cards might also make sense, depending on the average load of a system.

Re: Cloud Storage for $2 per TB per month

#28

I work in telecom/datacenter infrastructure and this is fanciful. The whole way they take the wattage load of one machine and then hand wave away all of the rest of the costs of either building and running a datacenter, or paying ongoing monthly colocation costs... Is just scary. I truly don't mean to offend anyone but this looks like a bunch of enthusiastic dilettantes. Generators? UPS? Cooling costs? Square footage…

Its super interesting to dive into the world of cryptocurrency mining, where some DCs are getting PUE of 1.1 or better with a buildout that's basically amounts to shelves and box fans.

No generators, just eat the downtime. No batteries. No 24/7 staff. No racks, just shelves (folded sheet metal is cheap). Security varies from farm to farm.

These servers don't need to run cool, as long as you are in a climate that doesn't get over 100 degrees you can get away with fans and no AC.

Re: Cloud Storage for $2 per TB per month

#29
post #28

I work in telecom/datacenter infrastructure and this is fanciful. The whole way they take the wattage load of one machine and then hand wave away all of the rest of the costs of either building and running a datacenter, or paying ongoing monthly colocation costs... Is just scary. I truly don't mean to offend anyone but this looks like a bunch of enthusiastic dilettantes. Generators? UPS? Cooling costs? Square footage…

Its super interesting to dive into the world of cryptocurrency mining, where some DCs are getting PUE of 1.1 or better with a buildout that's basically amounts to shelves and box fans. No generators, just eat the downtime. No batteries. No 24/7 staff. No racks, just shelves (folded sheet metal is cheap). Security varies from farm to farm. These servers don't need to run cool, as long as you are in a climate that does…

If all you intend to do is generate hashes and run for the exits when your mining equipment is no longer economical, due to difficulty increase, sure.

Reliable data storage for paying customers is a very different thing.

Re: Cloud Storage for $2 per TB per month

#30
One interesting point of reference is that backbaze currently charges $5 / TB / Mo. Assuming they haven't changed their profit margin of 50% from 2017 (https://www.backblaze.com/blog/cost-of-cloud-storage/), then this would imply that they have a direct cost of roughly $2.5 / TB / Mo.
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