Which is best, 512-bytes or 4K bytes For Sabrent 1tb m.2 pci 4.0 drive

Pejole2165 said:

The issue with defragging an SSD is more the excess writes needed to a memory type that has a limited number of write cycles.
To defrag an SSD the controller will need to make significantly more writes than on a normal HDD because of the way data is stored and written, in order to move parts of a file into contiguous areas, the controller needs to copy the partial data to another spare area, including the new data to add, then clear the original area (doing this for all data until a contiguous area large enough is cleared) , then write the data back. This increases the write cycles needed.
As far as SSD's go, in theory since there are no moving parts, data can be read from different areas of the drive at the same speed so fragmentation doesn't play a part, unlike mechanical HDs. And SSD's fragment files to even out the writes across the memory to avoid wearing out some blocks before others.

But I have seen a massive increase in performance if I defragged the o.s. once all my data is installed & i can not explain why , i am thinking that the directory is like a grid of X Y i.e A0, A1, A2 & if the files you are loading are in order (A0, A1, A2) loads quicker than (A1, D8, Z9) if you understand what I mean ?

Yes, I understand what you are saying, however if you are going to test an SSD for write speeds and/ or read speeds you need to test various sizes of test file at different que depths for more accurate results. Defragging an SSD can speed up access times under some circumstances, but the issue with defrag (as I said above) is that you will cause uneven wear of the NAND cells, this could result in the SSD dying prematurely or reaching it's stated TBW long before it would occur in normal use.
It's more about the increased writes than anything else.
And when all is said and done, the SSD's controller is optimised for writing and reading across multiple cells rather than in a linear fashion.

I really need to find more theory & data on the ssd process to understand it better ? as still want to investigate this performance increase & wonder if it's anything to do with when a drive is near full it slows down, as do all drives, but a defrag pass speeds it up, but that does not give me a complete answer I need to visualize the process in my mind.

I only give the game files 1 defrag, then they are left alone as I go into defrag properties to stop them being touched again & done loads of defrag on my mSatas for years & the wear rate is still above 95%, but from the first day I used them on my AM3 PC I knew they suited AMD machines giving high performance & long life & they are still high performance on Ryzen too!

I know I will write to the software company who make the defrag program as they must really understand it with a good explanation.

Is this good then ???

I was expecting it to dissapoint me on the operating system but I am still in shock

Compumind said:

Samsung and Toshiba are the leaders in SSD technology, followed by Micron.

Not true anymore...

RoadBlaster said:

I really need to find more theory & data on the ssd process to understand it better ? as still want to investigate this performance increase & wonder if it's anything to do with when a drive is near full it slows down, as do all drives, but a defrag pass speeds it up, but that does not give me a complete answer I need to visualize the process in my mind.

I only give the game files 1 defrag, then they are left alone as I go into defrag properties to stop them being touched again & done loads of defrag on my mSatas for years & the wear rate is still above 95%, but from the first day I used them on my AM3 PC I knew they suited AMD machines giving high performance & long life & they are still high performance on Ryzen too!

I know I will write to the software company who make the defrag program as they must really understand it with a good explanation.

Is this good then ???

I was expecting it to dissapoint me on the operating system but I am still in shock



Not true anymore...

Nice, does that SSD need original drivers like Samsung does ?
BTW, look at Samsung 980 CES 2020: Samsung 980 PRO PCIe 4.0 SSD Makes An Appearance

CountMike said:

Nice, does that SSD need original drivers like Samsung does ?
BTW, look at Samsung 980 CES 2020: Samsung 980 PRO PCIe 4.0 SSD Makes An Appearance

No drivers as plug n play, but the blocks are set to 4k & I kept them like that for the clean install

Whats wrong with an m.2 if it needs drivers is what I am thinking (just wondering) ?

RoadBlaster said:

No drivers as plug n play, but the blocks are set to 4k & I kept them like that for the clean install

Whats wrong with an m.2 if it needs drivers is what I am thinking (just wondering) ?

My Samsung 960 evo just works better with their drivers and needs newest ones to work with Samsung's Magician SW.
If you install windows on it, it's going to make it GPT with 512

CountMike said:

My Samsung 960 evo just works better with their drivers and needs newest ones to work with Samsung's Magician SW.
If you install windows on it, it's going to make it GPT with 512

The Sabrent come set to 4k blocks so I left it there they do link me to a software to use to change the block but does it matter as discussed on here ? more opinions welcome ?

@RoadBlaster -

Sabrent does not make the chips.

"This means it's packing Kioxia’s latest 3D TLC NAND and is powered by none other than Phison’s PS5016-E16 NVME SSD controller."

Kioxia = Toshiba.

Sabrent Rocket NVMe 4.0 M.2 SSD Review: A High-Performance Value | Tom's Hardware

If they are using 4K sector size then just go with it.

FWIW.

Compumind said:

@RoadBlaster -

Sabrent does not make the chips.

"This means it's packing Kioxia’s latest 3D TLC NAND and is powered by none other than Phison’s PS5016-E16 NVME SSD controller."

Kioxia = Toshiba.

Sabrent Rocket NVMe 4.0 M.2 SSD Review: A High-Performance Value | Tom's Hardware

If they are using 4K sector size then just go with it.

FWIW.

Thanks already know this, but did you know that Sony Lasers are used in almost all cd players around the world just another fact you might not know, & they all sound the same in Digital though ?

II have theory that shows how SSD'S increase their latency speed once defragged

If 1 block of data has been split into 2 blocks on opposite sides of the directory that makes 2 processes to collect that 1 block of information hence the words fragmentation example A1 & X9 parts needed to complete the block read.
So.
after defragmentation has happened it could put back together over 2,000 blocks which before fragmentation would of took 4,000 locations to retrieve but now has dropped to 2,000 locations, this as I have been seeing would be described as an increase in latency time to in milli seconds - wonder if there is a program to measure a before & after ???

You might think this theory is wrong until you try it with your operating system once per re-format/instal of your O.S remembering to clear all trash data out & no longer used programs for max efficiency Defrag.

Thanks to all those that have contributed to my thread so far.