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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Dan Kaminsky‏Verified account @dakami 10 Jun 2018
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      https://aws.amazon.com/snowmobile  never underestimate the bandwidth of...a shipping container full of disks? REALLY? 100 Petabytes. Computing, it's different now.

      14 replies 41 retweets 117 likes
    2. Hector Martin‏ @marcan42 10 Jun 2018
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      Replying to @dakami

      100PB is nothing. We have 512GB microSD cards. A shipping container full of those clocks in at ~260 exabytes.

      3 replies 4 retweets 21 likes
    3. Dan Kaminsky‏Verified account @dakami 10 Jun 2018
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      Replying to @marcan42

      Well you’ve got to be able to access them too.

      1 reply 0 retweets 2 likes
    4. Hector Martin‏ @marcan42 10 Jun 2018
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      Replying to @dakami

      Put them on a reel of tape and just pogopin them to access. Should be able to get some decent throughput without much volume overhead by doing it a bunch of times in parallel.

      1 reply 0 retweets 6 likes
    5. Dan Kaminsky‏Verified account @dakami 10 Jun 2018
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      Replying to @marcan42

      I am sure it's been considered. MicroSD reliability is complicated.

      1 reply 0 retweets 5 likes
      Hector Martin‏ @marcan42 10 Jun 2018
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      Replying to @dakami

      Any storage reliability profile can be dealt with using appropriate error correction/erasure coding.

      1:54 AM - 10 Jun 2018
      • 5 Likes
      • Boomba John-Mark Gurney 🗑️🔥 sww1235 Kevin Riggle Agent Smith
      1 reply 0 retweets 5 likes
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        2. Dan Kaminsky‏Verified account @dakami 10 Jun 2018
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          Replying to @marcan42

          You know, your solution _does_ suggest it's no big deal to essentially hack microSD cards into being flash tape drives, so uh, you've got certain other reliability issues that erasure codes aren't going to cover.

          1 reply 0 retweets 7 likes
        3. Dan Kaminsky‏Verified account @dakami 10 Jun 2018
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          Replying to @dakami @marcan42

          Lemme put it this way: Scale here is large enough that if they want to use flash instead of spinning disks, they don't need to mess around with hacked up form factors. They can just go buy 100PB of flash.

          1 reply 0 retweets 3 likes
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