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Cake day: June 12th, 2023

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  • Mr_Dr_Oink@lemmy.worldtoSelfhosted@lemmy.worldCan't relate at all.
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    3 months ago

    HDD for long term storage. More reliable, has a higher number (essentially infinite assuming the drive never fails) of read/writes before failing. Cheaper and higher capacity than any ssd or m.2. Also if you dont keep applying a small electrical charge to an m.2 they eventually lose the data. HDD doesnt really lose data as easily. Also data recovery is easier with HDD. Finally you know when a HDD is on its way out as it will show slower write speeds and become noisier etc.

    I used to work in a service desk looking after maybe… 4000 desktops and 2000 laptops for a hospital and the amount of ssd and m.2 failures we had was very costly.






  • I’ve had a look into it, and it doesn’t work if you try to do it mathmatically. You always need more than 3 gos on the seesaw.

    There is a solution in the replies to my original comment that is the actual solution, and it works every time and is much simpler than any grouping method.

    It involves assigning a letter to each person and then aligning that with a grid of positions “left” or “right” or “none” on the seesaw. Over the three rounds. So, person A is on the right all three rounds person b is on the right for 2 rounds then on the left for the 3rd round.

    You end up with a list of 12 patterns that do not repeat or mirror any other pattern like “LLL” “LLR” “LRR” “LR-” etc. Then you do all three rounds and compare the position the seesaw was in with those patterns.

    If the seesaw was down on the left 2 times the down on the right the third time then you look for which person had that pattern in this case it was person B. So they are the one with a different weight and they were heavier.

    Equally, if the opposite pattern occurred. It was down on the right 2 times, then down on the left for round, then that is the opposite pattern of person B and does not occur anywhere else, so it was person B, and they were lighter.

    person:  A B C D E F G H I J K L
    
    round 1: L L L L R R R R — — — -
    
    round 2: L L R R R — — — L R L -
    
    round 3: L R R — — L R — L L — R
    






  • Its CIDR notation. So /0 means the subnet mask has no on bits and would read as 0.0.0 0 if you had a /1 that turns 1 bit on in the subnet mask, so it would be 128.0.0.0.

    If i had a /24 which is the subnet mask used for most small networks like your home router. There would be 255 minus 2 addresses available for clients (phones, pcs etc) so the subnet mask would have 24 on bits and read 255.255.255.0, which you may be familiar with.

    (Assuming you dont know much, not to insult you, you might know plenty), but when writing any kind of instructions or guides, i was always told to assume the reader knows absolutely nothing and miss nothing out.


  • Remember, when we abbreviate an ipv6 address all leading zeros are reduced to a single 0.

    E.g

    0003 would just become 03

    When there are geoups of 4 zeros these can be represented as a single 0 or as a double colon ::

    But we can only use the :: once so when summarizing an address containing multiple groups of 4 0s one after the other they can all be abbreviated to a single ::

    Eg

    fe80:0000:0000:0000:0210:5aff:feaa:20a2 would become fe80::210:5aff:feaa:20a2

    Therefore it is perfectly valid to abbreviate an address of 0000:0000:0000:0000:0000:0000:0000:0000 /0 to just ::/0