to cut manufacture costs, many 2.5" cheapish SSDs that are non-samsungs, do not have a cache at all!
therefore when it is being written it slows down to a crawl pretty quickly altough readspeeds dont really need cache
what do you think, could it be possible to build a reasonable RAID-5 out of 3x 1TB 2.5" SSD?
Then you get 2TB diskspace as one drives space is sacrificed to RAID-5 parity bits which ensure that if one drive dies, you lose no data.
RAID-5 effects writing some 10% due to the overhead of storing parity bits.
HOWVER RAID-5 controller (PCI-e 16x) has 512MB of DDR3 RAM as a buffer/cache.
So should the drives being connected to a proper RAID controller now have reasonable speeds due to controller itself having cache RAM?
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ADATA SU800 does have DRAM cache.
aren't those the crappy drives you put in Grandmas PC because she won't know the difference between that and a samsung.
yes they are those
She won't notice the difference because she's been dead for 45 YEARS!
you are looking at the bottom tier chinese products and being inflammatory
Sata is dead
Time to move on
He's not wrong
Most sata SSDs are without any DRAM and generally aren't great
Most anyone buying sata SSDs at this point isn't gonna care to tell the differences.
Why would I need DRAM on a SSD that will mostly be used as a storage medium?
>SATA is dead
Only in very specific usecases where either you have a super small PC that literally cannot fit anything larger than an M.2 drive or if for some reason you need stupid fast with a PCIe M.2 RAID, but even then that's only worth it if the PC you're working with doesn't need a GPU or you have a CPU with plenty of PCIe lanes, otherwise you might as well just be using a bunch of 2.5in SSDs in RAID. M.2 will never take over SATA, it'll just provide a super speedy alternative, but you can't possibly shill me on how it'll die if hard drives still exist and are still cheaper per TB than SSDs ever will be.
Sata is very much alive. I need more than just 2 or 3 NVMe slots before I can put SATA to rest.
>Sata is dead
>Time to move on
[citation needed]
it is indeed uninspired shitposting
nvme slots on a motherboard are an absolute cancer and waste of pcie lanes.
adata is a literal scam company
back to the bin finn
With the advent of cheaper PLX cards, little point in sata, if for some reason you must have bulk SSD storage
only if you care about ultimate speed. Then again if OP wants SATA drives he probably doesnt, "faster than spinning rust, silent" is the use case for that, so idk why he gives a shit about DRAM cache. u2 drives ain't cheap, either, compared to consumer SSDs
Still shit if it doesn't have a battery or solid state caps.
>noname aliexpress-tier brands do thing
>write clickbait thread title claiming every SSD ever made and sold does it
raid>0 is completely moronic for most consumer scenarios
back up essential files, the back up storage can be raid>0
your anime collection is not essential
how do I benefit from controller device cache memory then?
the SSDs dont have cache which makes them slow
Have you tried using tech from this decade?
well does these have the DRAM cache because thats the main argument
>muh M2s
>muh 1-3 drives max per computer
>muh overpriced trash
Frick off.
>muh 1-3 drives max per computer
That's not true tho, you can get 4 slots each on a pcie card even for consumer mainboards.
>burn a PCIE slot and lanes to add storage
How about I just plug drives into SATA6 ports and have a bare minimum of 6 drives available instead?
Wrong.
>you need a NAS if you have more than one drive
Did some techtuber tell you that?
>Did some techtuber tell you that?
Is that your answer to everything? So I did some really frickdumb shit with my computer and people are laughing at me for it. They must be fans of some youtuber.
There's no difference in price between sata ssd and nvme.
>>muh 1-3 drives max per computer
At that point you need a NAS, not a desktop PC.
Almost nobody needs dram cache
Outside of benchmarks I quite literally cannot tell the difference between my expensive Samsung SSD compared to the cheap dramless storage ssd I bought
>raid5
>1tb disks
Honestly just a waste of time and space, both storage and physical.
Wait a minute, I recognize that pig
DRAM Cache is a moronic linus tech tips meme.
Just having it doesn't mean the NAND flash chips are faster. SSDs with DRAM fail more easily because that shit increases complexity and if you suddenly lose power, say goodbye to up to 4GB of data.
This bases WD Blue has no DRAM Cache and it completely BTFOs more expensive Pro level SSDs in sustained writes throughout the drive.
you do realize power loss protection is a thing you incel
moron.
>my ssd breaks the laws of physics because linus said so
>my ssd breaks the laws of physics
because it has super capacitors which can power it long enough to dump the dram cache to flash you moron
Ok? This has nothing to do with DRAM cache.
Is this your first week of reading english?
>i know more than literally every company which makes enterprise class ssds
stay butthurt that my PM9A3 has dram cache and super capacitors
That's NVME with HMB. SATA drives can't use HMB, and need RAM.
I have the SU650. It has no RAM or HMB to compensate.
I use it as an OS drive. Do not make my mistake.
Any time there are sustained writes or mixed reads/writes, the drive chokes down to single-digit KB a second. That's not an exaggeration. The entire screen freezes and I can't even move the cursor. It's not rare. Anytime Steam or Epic updates, the computer becomes unusable until it finishes.
>the drive chokes down to single-digit KB a second
I think your OS is just fricking up somehow.
That would also happen if you bought a shitty SATA drive with DRAM. A 1GB RAM chip is not going to suddenly make 500GBs of slow NAND fast. That's not how computers work.
Again, you're talking about something completely different. Go back to english class.
>talking about something completely different
we're talking about dram cache you moron, and for some reason you think your poor tier drives are in the same class as enterprise class disk
Wow, you can buy old business drives from ebay, you want a special snowflake award?
DRAM cache is a complete scam for 99.9% of PC users. That shit only makes sense if you have a database server that needs to write 100,000s of tiny files per second.
>old business drives
pm9a3 are current gen you poor
>DRAM cache is a complete scam
which is why all enteprise class SSDs and raid card have it? even pic related has 80 some GB of dram per disk you poor
>database server that needs to write 100,000s of tiny files per second
you clearly dont know anything about sql if you think they're writing tiny files you moron
>n-n-nooooo you dont need dram, why would you ever want to be able to write -1.5-1.9GB/sec in a RAID 6 with 128TB worth of SATA SSDs
Show me where on the doll the tech youtubers hurt you.
Newer samsungs just use the system RAM as cache anyway.
Caches are of the devil.
It is always simpler and better that a device does what it is supposed to do: straight writes.
Otherwise there might be all sorts of coherence problems during power cuts, etc.
>i dont understand what PLP is either
moron
The most serious PLP is capacitor-based, which is basically a cache for electric power. Those things go bad over time.
Then you have firmware-based PLP, which is a joke.
PLP is cope for manufacturer usury. Just use RAM and keep disk writes slow as they should be.
>Those things go bad over time
lol no you moron
>Then you have firmware-based PLP
there is no such thing
>Just use RAM
again you need PLP to use RAM wether it is system or disk
Sorry chinks and jeets, on-board cache is indeed important.
It's NOT when your budget is 13 bucks AND you're buying from alibaba!