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Thread: Most reliable micro SD card

  1. #1
    OrangeAfroMan's Avatar
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    Most reliable micro SD card

    I have a number of critical applications involving raspberry pis, and had one get corrupted the other day.
    So, what cards are least likely to have issues and be reliable 24/7 forever? Speed doesn't really matter, and I'm looking for 8gb cards.
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    Lana Torrin's Avatar
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    Quote Originally Posted by OrangeAfroMan View Post
    I have a number of critical applications involving raspberry pis, and had one get corrupted the other day.
    So, what cards are least likely to have issues and be reliable 24/7 forever? Speed doesn't really matter, and I'm looking for 8gb cards.
    All flash cards are pretty shit.. Samsung Pro cards have a 10 year warranty on them so this is likely the best you are going to get. I understand the SanDisk Extreme series is also pretty good.
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    Super Moderator Global Moderator QuackBot's Avatar
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    Quote Originally Posted by Lana Torrin View Post

    All flash cards are pretty shit.. Samsung Pro cards have a 10 year warranty on them so this is likely the best you are going to get. I understand the SanDisk Extreme series is also pretty good.
    Also you should have told her that.

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    Donor Aea's Avatar
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    Quote Originally Posted by Lana Torrin View Post
    SanDisk Extreme
    I have always used this but only because of the performance.

    What you seem to want is something high-reliability that gives zero fucks regarding performance. This is... niche. Funny enough. You'd actually probably be better off asking in a pi / arduino / electronics forum.

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    Movember 2011Movember 2012 Nordstern's Avatar
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    Quote Originally Posted by OrangeAfroMan View Post
    I have a number of critical applications involving raspberry pis, and had one get corrupted the other day.
    So, what cards are least likely to have issues and be reliable 24/7 forever? Speed doesn't really matter, and I'm looking for 8gb cards.
    It might be helpful to know why you're using RPi for critical applications, what those applications are, and which brand failed on you.

    Seconding the use of Samsung or SanDisk.
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    Quote Originally Posted by OrangeAfroMan View Post
    I have a number of critical applications involving raspberry pis, and had one get corrupted the other day.
    So, what cards are least likely to have issues and be reliable 24/7 forever? Speed doesn't really matter, and I'm looking for 8gb cards.
    Why are you using raspberry pi for "critical applications"?
    Also, do you shut them down frequently? because the first cause of corruption happens when you "unplug" it instead of proper shutdown.

  7. #7
    Muffinsrevenger's Avatar
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    Quote Originally Posted by Kerdrak View Post
    Quote Originally Posted by OrangeAfroMan View Post
    I have a number of critical applications involving raspberry pis, and had one get corrupted the other day.
    So, what cards are least likely to have issues and be reliable 24/7 forever? Speed doesn't really matter, and I'm looking for 8gb cards.
    Why are you using raspberry pi for "critical applications"?
    This.
    Local or Network based storage with some sort of raid for the drives would be a good way of doing things, perhaps you could leave processing on the Pi, but move the storage elsewhere?
    Even enterprise servers have redundant "memory cards" for servers that use them...

  8. #8
    OrangeAfroMan's Avatar
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    Quote Originally Posted by Muffinsrevenger View Post
    Quote Originally Posted by Kerdrak View Post
    Quote Originally Posted by OrangeAfroMan View Post
    I have a number of critical applications involving raspberry pis, and had one get corrupted the other day.
    So, what cards are least likely to have issues and be reliable 24/7 forever? Speed doesn't really matter, and I'm looking for 8gb cards.
    Why are you using raspberry pi for "critical applications"?
    This.
    Local or Network based storage with some sort of raid for the drives would be a good way of doing things, perhaps you could leave processing on the Pi, but move the storage elsewhere?
    Even enterprise servers have redundant "memory cards" for servers that use them...
    It isn't 'life or death' sort of critical, but I have a Pi running Pi-hole and PiVPN, and if that goes down, so does my whole network. I have an image ready to flash on to the card if it ever happens again, so I'm back up in minutes, but I'd rather it not happen at all. I have another Pi for my NAS with samba, but all the storage is on an external HDD.

    I honestly can't remember what card I was using. I think it was a 32gb Kingston Class 10. After doing more research, it seems that bigger is actually better because there's fewer read/write cycles per byte, but I also don't want to have 64gb backup images stored. I have a Samsung 16gb EVO that seems to be highly regarded running the NAS Pi, and it seems that may be the best option to get more of, giving a good balance of price, performance, and reliability (they have a 10 year warranty)

    EDIT: It seems that specific card is no longer available... not sure what replaced it.. maybe this, which is cheaper and faster.
    Last edited by OrangeAfroMan; August 3 2017 at 07:11:49 PM.
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  9. #9
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    Quote Originally Posted by Nordstern View Post
    Seconding the use of Samsung or SanDisk.
    Yep. #1 rule of flash memory, buy from a company that actually makes the stuff.

  10. #10
    Super Moderator Global Moderator QuackBot's Avatar
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    Quote Originally Posted by Lana Torrin View Post

    All flash cards are pretty shit.. Samsung Pro cards have a 10 year warranty on them so this is likely the best you are going to get. I understand the SanDisk Extreme series is also pretty good.
    Its the good shit.

  11. #11
    OrangeAfroMan's Avatar
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    Quote Originally Posted by QuackBot View Post
    Quote Originally Posted by Lana Torrin View Post

    All flash cards are pretty shit.. Samsung Pro cards have a 10 year warranty on them so this is likely the best you are going to get. I understand the SanDisk Extreme series is also pretty good.
    Its the good shit.
    Thanks QB
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  12. #12
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    As a heavy user of flash cards, these things weren't meant to be under use 24/7. Cameras, phone storage -> yes. Operating systems that aren't optimised for such a task - not so much.

    I've been using Lexar and SanDisk but with the untimely recent demise of the former I'll probably have to go with SanDisk - which unfortunately have a record of being the most commonly counterfeit products around Reliability-wise I've had no issues with either, but otoh I've only been using them in my cameras (which see limited usage, after all) and in my Android phone (128GB SanDisk). I also have a 512GB SD laying around that I've got for cheap (also SanDisk) but I've been using that as overflow backup since my D800 can't into read it (too big lol).

    It's why I like the rPi as a classic games console, you don't use it 24/7, however for a NAS or a router I'd choose to go with a specialised solution that doesn't involve relying on flash storage reliability.
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  13. #13
    Donor Aea's Avatar
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    I can't imagine those flash cards actually get that much use. They have plenty of memory (i.e. RAM) for what they are so I don't really expect the flash card to get thrashed in any meaningful way.

  14. #14
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    There's a reason SSDs have TRIM and it's implemented in the OS as well. No matter how much RAM you have
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    This is an interesting thread, because we started selling a RaspberryPI based product, and are currently using "whatever we have flying around" SDCards.

    I'm almost sure that this will inevitably end in disaster, and am also looking for a at least somewhat more reliable SDCard, which I will suggest using, and which will be more expensive, and thus not end up being used, all the while my ass is covered, and the added bonus of being able to say "I told you so" in a year or 2.

  16. #16
    Donor Aea's Avatar
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    Quote Originally Posted by Dee Jiensai View Post
    This is an interesting thread, because we started selling a RaspberryPI based product, and are currently using "whatever we have flying around" SDCards.

    I'm almost sure that this will inevitably end in disaster, and am also looking for a at least somewhat more reliable SDCard, which I will suggest using, and which will be more expensive, and thus not end up being used, all the while my ass is covered, and the added bonus of being able to say "I told you so" in a year or 2.
    Or you know, the fact that their supply chain is utter bollox.

    SSDs implemented TRIM for both longevity and performance reasons, but the workload of PCs is pretty different than those of single-board computers unless you've hopped on the "replace your PC" bandwagon.

  17. #17
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    Quote Originally Posted by Aea View Post
    Quote Originally Posted by Dee Jiensai View Post
    This is an interesting thread, because we started selling a RaspberryPI based product, and are currently using "whatever we have flying around" SDCards.

    I'm almost sure that this will inevitably end in disaster, and am also looking for a at least somewhat more reliable SDCard, which I will suggest using, and which will be more expensive, and thus not end up being used, all the while my ass is covered, and the added bonus of being able to say "I told you so" in a year or 2.
    Or you know, the fact that their supply chain is utter bollox.

    SSDs implemented TRIM for both longevity and performance reasons, but the workload of PCs is pretty different than those of single-board computers unless you've hopped on the "replace your PC" bandwagon.
    Whilst true, you do need a specific distro that doesn't cock up the SD card. I'm honest, I haven't tested them thoroughly to actually get a feeling on how much they're using them, however I would be wary of applications that presume 24/7 uptime.
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  18. #18
    Movember 2011Movember 2012 Nordstern's Avatar
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    I have several 64MB and 256MB microSD cards scattered around. Too small for use in phones or RPi. Can be used in my body cam, but can't record much on a 256MB card. What do?
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