Comment by justsomehnguy

Comment by justsomehnguy a day ago

> I can confidently say this was exactly "How to buy a SSD".

More like "How to spend $3k and think you did something".

For this amount what you spent you could get any, literally any SSD, use only 64Gb and be fine for decades. Or use more than 64Gb and be fine for... decades anyway.

You literally could buy a server class mixed workload SATA drive with a DWPD of 4.

https://www.solidigm.com/products/data-center/d3/s4620.html

And quite amusingly, any modern SATA SSD runs at the top of SATA3/SATA600 specs, with ~500MB/s for read and write:

    Sequential Bandwidth - 100% Read (up to): 550 MB/s
    Sequential Bandwidth - 100% Write (up to): 500 MB/s
    Random Read (100% Span): 85000 IOPS
    Random Write (100% Span): 48000 IOPS

While Intel® X25-E Extreme SATA Solid-State Drive is SATA2/SATA300 and runs at 250MB/s at reading:

    Sustained sequential read: up to 250 MB/s
    Sustained sequential write: up to 170 MB/s
    Random 4 KB reads: >35,000 IOPS
    Random 4 KB writes: >3,300 IOPS

https://download.intel.com/newsroom/kits/ssd/pdfs/Extreme-SA...

bullen a day ago

You would think that, but I also have Samsungs industrial 3.5TB drives and they are flaky at best.

Eternal growth does not exist, SSDs peaked in 2011 for durability without complexity.

Just like DDR3 has the lowest CAS latency with ok bandwidth and longevity.

DDR4 actually breaks after 10 years.

DDR2 probably lasts more than 100 years.

Think about that, any device manufactured in the coming 50 years will be outlived by 32-bit Raspberry 2!

You just need a bunch of older SD cards and distributed storage so that you don't loose data.

Reply View 8 replies

gruez a day ago

>Just like DDR3 has the lowest CAS latency with ok bandwidth and longevity.
Source? AFAIK successive generations eventually had the same or slightly CAS latency in absolute terms. However, because CAS latency is measured in clock cycles, and successive generations have higher clock speeds, the latency "number" is higher, but that's an illusion. DDR3-1600 CL8 has the same latency as DDR4-3200 CL16.
>DDR2 probably lasts more than 100 years.
>Think about that, any device manufactured in the coming 50 years will be outlived by 32-bit Raspberry 2!
What's the point of it lasting 100 years if it's terribly out of date? An IDE drive from the 2000s is basically unusable today, 20 years later. CPU from around the same era is basically on its last legs because software support is being dropped[1]. Your SSDs are going to suffer the same fate. And that's not even factoring in other considerations like power consumption, and the hassle of trying to connect 30 drives to a computer.
[1] eg. https://www.reddit.com/r/linux/comments/18mrxjk/debian_end_o...

Reply View | 1 reply
- bullen a day ago
  
  As you increase Hz you increase energy and then your components fail faster.
  The point is "the 1000 hour computer" = we are going into rent seeking hardware.
  I'm obviously not going to use 30 SSDs in one computer.
  You can google "perma computing" if really want to binge.
  
  Reply View | 0 replies
stavros a day ago

I don't use SSDs, but the HDDs in my NAS started failing one by one after a few years. Whenever one failed, I just put a new one in, and that was it. ZFS rebalanced things automatically and I went on with my life.
It just sounds like you spent $3k to solve a problem you could have solved with $200...
Unrelatedly, does the name "Realms of Despair" mean anything to you?

Reply View | 5 replies
- bullen a day ago
  
  HDDs make noise, you can only use them if you have more rooms than you need.
  Nope
  
  Reply View | 4 replies
  
  alt227 a day ago
  
  Everyone has a closet or cupboard under the stairs where a NAS can live. it doesnt need a room of its own.
  
  Reply View | 0 replies
  
  stavros a day ago
  
  But my argument was "a failing disk can just be swapped for another one with zero other hassle".
  
  Reply View | 2 replies

Panzer04 a day ago

Assuming pcie SSDs are acceptable, they could have bought an optane drive with 60 drive write per day for five years endurance XD

SSDs today have lower ratings because very few (consumer) use cases would prefer more write endurance over +100/50/33% capacity from more bits per cell.

Reply View 1 reply

bullen a day ago

I looked at those, too expensive and hard to use one drive on 30 computers.

Reply View | 0 replies