Weird SSD effect

File transfers fast at over 1GB/s then suddenly slows down...

Only occurs when transfering a large file from one ssd (1TB) to another (2TB) but not in the opposite direction!

Has to do with cache or something??

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this only happens when you use Windows

Holy shit, you're onto something! Let's stay in touch.

>tfw when the mlc cache ends
hahahaha, spinning rust wins again

I actually have 3 SSDs so now messing with the other one, it seems transfering between the NON c-drives doesnt have this issue. but when cutting and pasting the file into the c-drive, it happens

Yeah that is how a cache works.

Nvme is much better.

I can't wait until HAMMR Drives hit the markets.

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but its odd it doesnt seem to occur on the non-main drives?

i guess windows does enough background tasking to slighly use up a bit more of the main drive cache?

I also could be your ram. Some SSD's are a crapshoot.
Watch: youtube.com/watch?v=OffzVc7ZB-o

the c-drive is actually newer, its an 860 (2 tb) and the others are 850s (1tb and 512gb) ...

and i have 32GB of ram for VMs (none running now)

This is Windows syncing the cache or updating the file table. Sane operating systems allow the operation to complete without this and sync caches on their own time.

I'm retarded, what are HAMMR drives?

Fuk I got cukted OS

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higher density HDD for 4k porn collections

HAMMR is an age old technology that can BTFO every HDD ever made.

Main drives have caching. External drives have disabled RAM caching so that when you get a "done copying", it's actually done copying and not just cached for writing and you can actually unplug it. What "safely remove" actually did before is immediately write all cache and check all locked files but now they just disable the cache.

none of this is with external drives. all sata

BTFO it in slowness maybe...
It's literally just SMR but now you ALSO have to do an extra heat+erase+cool cycle before rewriting an entire track.

i feel like heat adds so many variables, like tiny fragments of garbage are going to fuck HAMMR drives up quick in the real world...

windows? if so it's a caching thing. windows caches writes to drives it sees as internal in memory before writing data to a drive. ran into this not that long ago with an iscsi volume. if I tried to copy a large file to it it would either complete within a few seconds but the iscsi target would still show it being written for another minute or two, or if it was a large enough file, show a crazy fast transfer rate for a bit then slow back down to what the network transfer rate should be

Heat-assisted magnetic recording

Retina Macbook Pro doesn't have this problem.

Evo line use TLC memory, usually slowdown time SLC cache get full

If he transfere to TLC SSD yes will happens.

My HAMMR will BTFO your HDD.

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There's a reason it has been in development for so much time

Mostly likely, Glass platters and all...

It's going to be interesting to see how long they last for their only real market - cold storage.

It's HAMR, retards. Heat Assisted Magnetic Storage.

just wait for HLC ssds (hexa-level cells) and then SSDs will be finally cheap enough to compete with HDDs on $/capacity

>Windows
>IO
Good one OP.

>HLC
It'll be cheap, high capacity, and just long enough life to post a five star review.

Cells don't die without writes (although idling the drive will consume writes as the charge degrades over time, requiring a rewrite)
For cold storage, it probably won't be any worse than HAMR anyway.

Flash makes terrible long term storage as charge leaks.

Vaporeon is the worst eeveelution, kys

At least it gets moves. Flareon doesn't.

It's a shame you can't use RAM to cache your data in windows without third party programs.

EVO uses DRAM as cache, not SLC.

You can, that is how some toshiba NVMe SSDs work.

They will have shit reliability tho.

Your SSD has a write cache and it can write to the cache really fast, but when the cache fills up it has to commit the cache and continue saving, which slows the fuck down

>reading comprehension

Linus did a video that explains this. The Intel 660 one.

Samsung EVO
> has a cache, it is not a real SSD

fucking dumbasss, buying cheap retarded Samsung "SSD"

>Is a retard
How does it feel?

lmao dumbfuck

slightly offtopic but can anyone explain what turbowrite does on samsung ssd's in simple english?