41–50 of 67 posts
The great thing is that it doesn't use SMR. I have an 8TB SMR from Seagate and its write performance is bad and variable, much like the pre-TRIM SSDs. It's ok if you write a lot of stuff and then just read it (you can get >100MB/s out of it), but I often see small random writes (updates) at 3-4 IOPS, because it has to re-shingle the whole track.
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> If you're not sure what this means, our product is Not For You. Hey, thanks! I stopped reading there. :)
We both win!
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You could always open them in a larger helium chamber.
Which would add a significant up-front cost that would have to be shouldered by the data recovery company. Potentially an issue for small shops (which most data recovery companies are.)
Wear gloves, pickup tools and dismantle drive.
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why it can't be vacuumed?
In a vacuum, the head would crash into the platter. The gas provides a cushion. Flying height these days is something like 3nm (yes, you read that right), so the tiniest vibration could cause a head crash in a vacuum.
Wikipedia goes on to say the head could crash into a fingerprint or _smoke particle! So... how did my spinning rust laptop drive ever survive on my lap?
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Sure, but at say 1/10th atm Nitrogen would seem to work. So, the question becomes why is helium significantly better?
> at say 1/10th atm Nitrogen would seem to work But then you have to have a case strong enough not to bend under the pressure difference. At 1 atm, of course, helium has much lower density (and therefore lower viscosity). Nitrogen weighs 28 g/mol; helium just 4 g/mol.
As a provider of cloud storage (who actually owns the infrastructure) this is both exciting and frustrating... Exciting because we love the idea of deploying a 450TB zpool in a 4U chassis ... Frustrating because we will have to keep reworking our price per GB. With that in mind, our new attic/borg[1] support has dropped down to 3 cents per GB, per month to kind-of-sort-of match S3 pricing[2]. [1] http://www.stavros.i…
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Sure, but at say 1/10th atm Nitrogen would seem to work. So, the question becomes why is helium significantly better?
> at say 1/10th atm Nitrogen would seem to work But then you have to have a case strong enough not to bend under the pressure difference. At 1 atm, of course, helium has much lower density (and therefore lower viscosity). Nitrogen weighs 28 g/mol; helium just 4 g/mol.
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SuperMicro has 72 drives in a single system, with 10TB drives you are hitting 720TB in a single 4U package. Dell also has their DSS7000, which is 90 drives in a 4U system, so 900 TB in a single 4U package... 9 Petabyte of storage in a single 42U rack...
Once you go past the 45 drive JBOD (which costs $2000 give or take) the price per slot starts to go up quickly ... the last quote we had for the supermicro 90 drive JBOD was $9000. So if you are optimizing for rackspace, it might make sense, but if you're keeping costs down, the 45 drive chassis is the best bet.
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SuperMicro has 72 drives in a single system, with 10TB drives you are hitting 720TB in a single 4U package. Dell also has their DSS7000, which is 90 drives in a 4U system, so 900 TB in a single 4U package... 9 Petabyte of storage in a single 42U rack...
Once you go past the 45 drive JBOD (which costs $2000 give or take) the price per slot starts to go up quickly ... the last quote we had for the supermicro 90 drive JBOD was $9000. So if you are optimizing for rackspace, it might make sense, but if you're keeping costs down, the 45 drive chassis is the best bet.
You might be able to get better density for similar pricing. Just a suggestion :-)
As a provider of cloud storage (who actually owns the infrastructure) this is both exciting and frustrating... Exciting because we love the idea of deploying a 450TB zpool in a 4U chassis ... Frustrating because we will have to keep reworking our price per GB. With that in mind, our new attic/borg[1] support has dropped down to 3 cents per GB, per month to kind-of-sort-of match S3 pricing[2]. [1] http://www.stavros.i…
(who actually owns the infrastructure) Hipster
Storage is cheap when you own it vs renting it: https://i.imgur.com/WZriUP5.jpg
