Since almost the existence of a computer in general, there has been a kind of component that has completely reduced the performance of any PC or server: storage systems. It's not surprising that SSDs will stay here and currently increase the performance of a standard drive by 12, but this is not enough. For this reason, Kioxia and Western Digital will be at the forefront of the industry and have created XL-Flash, Ultra's NAND Flash Ultra.
Although Kioxia (a form of Toshiba with memories) with Western Digital announced as XL-Flash, now where we have more data to talk more about this new memory.
And is it right now 3D NAND Flash they are in an alley area where the exit is too high to jump, and as a result it will take some steps to climb that altitude.
3D NAND technology does not have high surface area, XL-Flash will shut down problems
One of the strengths of the NAND Flashs is its cost of storage compared to the cost, where it does not actually flush the modern HDDs, but as such draws on an important barrier to performance: latency.
In terms of writing and learning it is a far cry from another important component in a PC such as RAM, and based on NAND Flash, but with different architecture and purposes. Thus, among the best known in the field such as Flash Memory and DRAM, three new concepts have been created: SCM, MRAM and PCM, which will fill the gap between the two best memories in the market.
WD and Kioxia have chosen SCM to improve their conversion technology, because the cost of production is less than DRAM and the storage capacity of each silicon matrix is greater.
At this stage, the real rivals of other leading technologies like Intel & # 39; s 3D Xpoint and Samsung & # 39; s Micron and Z-NAND, unless those mentioned are PCM based.
Each technology has its advantages and disadvantages, where, for example, Intel wanted to work better in certain situations not suited to the standard NAND Flash, when trying to isolate itself.
10x fast access time
Currently, Kioxia will maintain a 96-bit standard in its 3D NANDs (called BiCS SLC (1 pieces per cell)), where the death rate goes up to 128 Gbit, which compares to Intel and Micron technology and two times larger than that Samsung.
This means that they have gained 128 Gb per death and thereabouts they can access up to 8 packs per pack. During the access times, they are much improved.
Western Digital says that we will see only 75 picoseconds while read latency is even lower, only 4 picoseconds.
To get a better idea of what these figures mean, both companies have their standard BiCS color on SSDs on the market, displaying 561 pic1s in writing and 58 picoseconds in reading, that is, eight and 10 times. than XL-Flash.
Higher flight rate, lower latency
The problem with today's NAND Flash is that they need to create layers or planes for a large number and for a small number of them. Having fewer flights is a major problem with the access times, because the smaller queues eventually end and the latitudes end up suffering.
As a general rule, NAND Flash typically collects between two to four flights of high-power models, where they maintain normal performance between different versions.
Kioxia and Western Digital have increased these numbers to 16 aircraft, thus reducing thin lines and returning more performance and reach.
Also, when using cells 1-bit SLC, the internal rotation is very easy to do and the stiffness is the highest in the market. The problem logically is that inequalities in storage capacity are low.
Improved performance in IOPS
As we well know, where SSDs are currently common in IOPS is available when written or readable data is very small, because in these cases the performance is very low.
The build and build XL-Flash does is to reduce intrusion times 1/20 and thereby increase the effectiveness of IOPS. In addition, the performance and readability sequence has been reduced due to the introduction of 4 new voltages.
This allowed verification to only work after the second and third pull of system loop and at the same time the call is shortened tRRL or a random reading delay, affecting the entire circuit.
As we can see, Kioxia and Western Digital will be sitting down to eat at Intel and Samsung's table with cheaper technology, in small quantities, but much faster and without having a sort of system, which can set the balance as the M.2 SSDs do on Optane today.
Intel Optane and RAM's post has a new rival: The XL-Flash, the fastest memory ever appeared on HardZone.