• 10 Posts
  • 248 Comments
Joined 11 months ago
cake
Cake day: August 15th, 2023

help-circle



  • It was on old 3.5" drives a long time ago, before anything fancy was ever built into the drives. It was in a seriously rough working environment anyway, so we saw a lot of failed drives. If strange experiments didn’t work to get the things working, mainly for lulz, the next option was to see if a sledge hammer would fix the problem. Funny thing… that never worked either.




  • Maybe? Bad cables are a thing, so it’s something to be aware of. USB latency, in rare cases, can cause problems but not so much in this application.

    I haven’t looked into the exact ways that bad sectors are detected, but it probably hasn’t changed too much over the years. Needless to say, info here is just approximate.

    However, marking a sector as bad generally happens at the firmware/controller level. I am guessing that a write is quickly followed by a verification, and if the controller sees an error, it will just remap that particular sector. If HDDs use any kind of parity checks per sector, a write test may not be needed.

    Tools like CHKDSK likely step through each sector manually and perform read tests, or just tells the controller to perform whatever test it does on each sector.

    OS level interference or bad cables are unlikely to cause the controller to mark a sector as bad, is my point. Now, if bad data gets written to disk because of a bad cable, the controller shouldn’t care. It just sees data and writes data. (That would be rare as well, but possible.)

    What you will see is latency. USB can be magnitudes slower than SATA. Buffers and wait states are causing this because of the speed differences. This latency isn’t going to cause physical problems though.

    My overall point is that there are several independent software and firmware layers that need to be completely broken for a SATA drive to erroneously mark a sector as bad due to a slow conversion cable. Sure, it could happen and that is why we have software that can attempt to repair bad sectors.


  • Tin the wire and the pin first and then touch the iron to them both quickly. They should stick fairly well without needing to add additional solder. Also, like someone else mentioned, flux can help quite a bit. (Maybe even a cupped soldering iron tip might be useful, depending on the situation.)

    Learning how to solder SMD components will get you extremely familiar with how solder behaves at that scale. Let’s just say it’s significantly different than just doing basic wires and THT.

    (Well, the solder doesn’t really act different, but at smaller scales it looks like it does.)










  • remotelove@lemmy.catoDIY@slrpnk.netI beam trollies
    link
    fedilink
    arrow-up
    10
    ·
    edit-2
    2 months ago

    An I beam trolley in your kitchen is awesome for those times you need a place for a chain to hoist the engine out of your car and then move that engine into your living room.

    Also, when your floor is lava, you possibly have an escape route now.



  • remotelove@lemmy.catoScience Memes@mander.xyzsnek id
    link
    fedilink
    English
    arrow-up
    1
    ·
    edit-2
    3 months ago

    Sure thing. I’ll tag you in this thread if I get responses.

    (In a similar style thread a few months ago, I reached out to a Professor Lucas regarding some old stars that were discovered and dubbed “Old Smokers”. We had a tiny debate about the relevance of Betelgeuse and he squashed the debate for us. Feel free to search my profile on it as it’s kinda interesting. Same Lemmy community maybe? I can’t remember.)

    Edit: I just reached out to one of the reptile experts at the Denver Zoo, so let’s see how this moves. This process usually takes a few days, so don’t expect anything extraordinary, quickly.


  • remotelove@lemmy.catoScience Memes@mander.xyzsnek id
    link
    fedilink
    English
    arrow-up
    2
    ·
    edit-2
    3 months ago

    There isn’t much more than the pictures, title and review date/information.

    I mentioned in another comment that I am just going to write the reviewer of that page and see what the specifics are and get proper context.

    It’s not about who is right or wrong now. (You seem to know a lot more about snakes or you are a better rapid-researcher than I, at least.) If I can track this down and get a better review of stuff that is posted as a “government reference”, more people could benefit from that.

    In the past, I have had great success in reaching out to subject experts, so this should be kinda easy. I am also not shy, so that helps. I know the Denver Zoo (where I live) has a large reptile exhibit and they have close ties to people at the San Diego zoo who also does. It should be just a simple matter of contacting some of those folk with a short summary of this thread. If anything, they would have the “oomph” to get government resources updated. (I may have my zoos mixed up, but I’ll get that sorted when I start this little research project.)

    Side note: If you want to have an argument about chameleons, I am absolutely the person to have one with. ;)