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How large SSD should I buy for open source developing?

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  • jronaldJ jronald

    @fcarney said in How large SSD should I buy for open source developing?:

    860 EVO 1TB SATA which supports 500MB/sec transfer is $140. Unless you are doing lots of data transfer to and from your computer, or on your computer you can get by with the SATA version. The MSATA are nice, but the non samsung ones I have tested peter out during a large transfer.

    samsung is of high quarlity.
    But Korea import primary material from Japan, and there is nuclear polution problem in japan, even the food imported from japan got the problem for Korea. When I can be sure about this, I won't build any product made in JP or KR.

    JonBJ Offline
    JonBJ Offline
    JonB
    wrote on last edited by
    #8

    @jronald
    If you have $155 to spend you are richer than I am! (Mind, I have £ sterling, which is getting worthless.) I spent half that on 500GB.

    I hope the chip you get is not nuclear-irradiated. Suggest you don't try eating it. ;-)

    jronaldJ 1 Reply Last reply
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    • JonBJ JonB

      @jronald
      If you have $155 to spend you are richer than I am! (Mind, I have £ sterling, which is getting worthless.) I spent half that on 500GB.

      I hope the chip you get is not nuclear-irradiated. Suggest you don't try eating it. ;-)

      jronaldJ Offline
      jronaldJ Offline
      jronald
      wrote on last edited by jronald
      #9

      @JonB said in How large SSD should I buy for open source developing?:

      @jronald
      If you have $155 to spend you are richer than I am! (Mind, I have £ sterling, which is getting worthless.) I spent half that on 500GB.

      Sorry, typo, the 1TB version sales at $115. $155 is too expensive for me.

      I hope the chip you get is not nuclear-irradiated. Suggest you don't try eating it. ;-)

      Just watched "Chernobyl" directed by Johan Renck, the nuclear radioation is like invisible bullets that can go thourgh any thing in life.

      1 Reply Last reply
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      • fcarneyF Offline
        fcarneyF Offline
        fcarney
        wrote on last edited by
        #10

        @jronald said in How large SSD should I buy for open source developing?:

        nuclear polution problem in japan

        ? Where did you here this? They check for radioactivity at most ports in most countries now. This is part of preventing nuclear proliferation. I highly doubt that it would be in their exports.

        C++ is a perfectly valid school of magic.

        Kent-DorfmanK 1 Reply Last reply
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        • fcarneyF fcarney

          @jronald said in How large SSD should I buy for open source developing?:

          nuclear polution problem in japan

          ? Where did you here this? They check for radioactivity at most ports in most countries now. This is part of preventing nuclear proliferation. I highly doubt that it would be in their exports.

          Kent-DorfmanK Offline
          Kent-DorfmanK Offline
          Kent-Dorfman
          wrote on last edited by
          #11

          @fcarney said in How large SSD should I buy for open source developing?:

          ? Where did you here this? They check for radioactivity at most ports in most countries now. This is part of preventing nuclear proliferation. I highly doubt that it would be in their exports.

          Because of the way the media works in Japan, people don't realize how bad Fukushima really was. In the weeks that followed, the background atmospheric radiation levels went up significantly around the globe. There is a lot of monitoring of atmospheric radiation here because shale rock fracturing is a way they reclaim natural gas from the these rocks, and the shales are slightly radio-active due to uranium decay in them, which out-gasses as radon. Japan produce exports may have some low-level contamination in them based on what metals are present, but could not say how much, or for how long it would be a problem.

          kshegunovK 1 Reply Last reply
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          • Kent-DorfmanK Offline
            Kent-DorfmanK Offline
            Kent-Dorfman
            wrote on last edited by
            #12

            re ssd for development...I personally discourage ssd for development, but only use them for relatively static operating system images. development does a lot of writing on disks and SSDs have a much shorter expected lifetime than rotational media. I'm currently working on spacecraft flight systems and we MUST use SSD for non-volatile storage. Hardenning the systems against cosmic radiation events is a significant portion of what goes thru my head on a daily basis at work. All you can really do is keep multiple images and CRC/ECC the hell out of everything. Then it is still a non trivial statistical possibility that a stray ray will corrupt data in a non-fixable way.

            mrjjM jsulmJ 2 Replies Last reply
            0
            • Kent-DorfmanK Kent-Dorfman

              re ssd for development...I personally discourage ssd for development, but only use them for relatively static operating system images. development does a lot of writing on disks and SSDs have a much shorter expected lifetime than rotational media. I'm currently working on spacecraft flight systems and we MUST use SSD for non-volatile storage. Hardenning the systems against cosmic radiation events is a significant portion of what goes thru my head on a daily basis at work. All you can really do is keep multiple images and CRC/ECC the hell out of everything. Then it is still a non trivial statistical possibility that a stray ray will corrupt data in a non-fixable way.

              mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by
              #13

              @Kent-Dorfman
              Just as a note:
              I been using SSD for heavy c++ compiling for years and also running virtual machines on top of them. Its correct that the first Gen had low write count but newer m.2 disks take terabytes of writes with no issues.

              https://www.guru3d.com/news-story/endurance-test-of-samsung-850-pro-comes-to-an-end-after-9100tb-of-writes.html

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              • Kent-DorfmanK Kent-Dorfman

                @fcarney said in How large SSD should I buy for open source developing?:

                ? Where did you here this? They check for radioactivity at most ports in most countries now. This is part of preventing nuclear proliferation. I highly doubt that it would be in their exports.

                Because of the way the media works in Japan, people don't realize how bad Fukushima really was. In the weeks that followed, the background atmospheric radiation levels went up significantly around the globe. There is a lot of monitoring of atmospheric radiation here because shale rock fracturing is a way they reclaim natural gas from the these rocks, and the shales are slightly radio-active due to uranium decay in them, which out-gasses as radon. Japan produce exports may have some low-level contamination in them based on what metals are present, but could not say how much, or for how long it would be a problem.

                kshegunovK Offline
                kshegunovK Offline
                kshegunov
                Moderators
                wrote on last edited by
                #14

                @Kent-Dorfman said in How large SSD should I buy for open source developing?:

                Because of the way the media works in Japan, people don't realize how bad Fukushima really was.

                Not as bad as you make it sound, much worse than it could've been if tepco have handled it better ... in any case most of the radiation release was through leaching into the pacific, not through atmospheric dispersal (you don't have full exposure of the reactor vessel, but a partial meltdown). Now they have no idea what to do with the water they've been pumping through the reactors, so they just store it in tanks ... like that's going to last ...

                In the weeks that followed, the background atmospheric radiation levels went up significantly around the globe.

                Not really. They went up in and around the pacific, not at all much in western asia, the middle east, africa or europe. Only trace amounts of I-131 were detected here in europe way below any significant thresholds. Plus we don't need no stinkin' japanese reactors to irradiate us, we have Russia, which occasionally does that ...

                Read and abide by the Qt Code of Conduct

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                • Kent-DorfmanK Offline
                  Kent-DorfmanK Offline
                  Kent-Dorfman
                  wrote on last edited by
                  #15

                  @mrjj -- I'll stick with rotational for non-persistent data.
                  @kshegunov - it certainly upped the levels here on the east coast of the US. Didn't even want to mention that little ukranian mishap. I would love to have a real sample of Chernobylite though. Trinity site glass just isn't the same. LOL And of course you are right about the Pacific water contamination...

                  kshegunovK 1 Reply Last reply
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                  • Kent-DorfmanK Kent-Dorfman

                    @mrjj -- I'll stick with rotational for non-persistent data.
                    @kshegunov - it certainly upped the levels here on the east coast of the US. Didn't even want to mention that little ukranian mishap. I would love to have a real sample of Chernobylite though. Trinity site glass just isn't the same. LOL And of course you are right about the Pacific water contamination...

                    kshegunovK Offline
                    kshegunovK Offline
                    kshegunov
                    Moderators
                    wrote on last edited by kshegunov
                    #16

                    @Kent-Dorfman said in How large SSD should I buy for open source developing?:

                    it certainly upped the levels here on the east coast of the US.

                    Eh, maybe. I don't have data, but I'd take a guess on "marginally".

                    Didn't even want to mention that little ukranian mishap.

                    Actually I was thinking of more recent times when I wrote my comment. Like the friendly Ru-106 we got two years ago ...

                    I would love to have a real sample of Chernobylite though. Trinity site glass just isn't the same.

                    Nobody makes it as good as in the soviet union, I admit. Although, you can indeed sample it - they do accept tourists now, and east of the civilized world we don't judge people by the color of their money; green is perfectly fine. ;)

                    Read and abide by the Qt Code of Conduct

                    1 Reply Last reply
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                    • Kent-DorfmanK Kent-Dorfman

                      re ssd for development...I personally discourage ssd for development, but only use them for relatively static operating system images. development does a lot of writing on disks and SSDs have a much shorter expected lifetime than rotational media. I'm currently working on spacecraft flight systems and we MUST use SSD for non-volatile storage. Hardenning the systems against cosmic radiation events is a significant portion of what goes thru my head on a daily basis at work. All you can really do is keep multiple images and CRC/ECC the hell out of everything. Then it is still a non trivial statistical possibility that a stray ray will corrupt data in a non-fixable way.

                      jsulmJ Offline
                      jsulmJ Offline
                      jsulm
                      Lifetime Qt Champion
                      wrote on last edited by
                      #17

                      @Kent-Dorfman I never had any issues with SSDs. And one of the reasons why developers should use VCS is to have back-ups - a failing SSD is then a non issue...

                      https://forum.qt.io/topic/113070/qt-code-of-conduct

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                      • M Offline
                        M Offline
                        Mossma11n
                        Banned
                        wrote on last edited by Mossma11n
                        #18
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                        • S Offline
                          S Offline
                          Strobe1l
                          Banned
                          wrote on last edited by mrjj
                          #19
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