• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Solidigm Launches the D7-P5810 Ultra-Fast SLC SSD for Write-Intensive Workloads

TheLostSwede

News Editor
Joined
Nov 11, 2004
Messages
16,689 (2.32/day)
Location
Sweden
System Name Overlord Mk MLI
Processor AMD Ryzen 7 7800X3D
Motherboard Gigabyte X670E Aorus Master
Cooling Noctua NH-D15 SE with offsets
Memory 32GB Team T-Create Expert DDR5 6000 MHz @ CL30-34-34-68
Video Card(s) Gainward GeForce RTX 4080 Phantom GS
Storage 1TB Solidigm P44 Pro, 2 TB Corsair MP600 Pro, 2TB Kingston KC3000
Display(s) Acer XV272K LVbmiipruzx 4K@160Hz
Case Fractal Design Torrent Compact
Audio Device(s) Corsair Virtuoso SE
Power Supply be quiet! Pure Power 12 M 850 W
Mouse Logitech G502 Lightspeed
Keyboard Corsair K70 Max
Software Windows 10 Pro
Benchmark Scores https://valid.x86.fr/yfsd9w
Solidigm today announced the D7-5810, an enterprise SSD for extremely intensity write workloads. Such a drive would be capable of write endurance in the neighborhood of 50 DWPD. For reference, the company's D7-P5620, a write-centric/mixed workload drive for data-logging, and AI ingest/preparation, offers around 3 DWPD of endurance, depending on the variant; and the read-intensive drive meant for CDNs, the D5-P5336, offers around 0.5 DWPD. Use cases for the new D7-P5810 include high performance caching for flash arrays dealing with "cooler" data; high-frequency trading, and HPC.

Solidigm D7-P5810 uses SK hynix 144-layer 3D NAND flash that's made to operate in a pure SLC configuration. The drive comes in 800 GB and 1.6 TB capacities, and offers 50 DWPD over an endurance period of 5 years (4K random writes). More specifically, both models offer 73 PBW (petabytes written) of endurance. The drive comes in enterprise-relevant 15 mm-thick U.2 form-factor, with PCIe Gen 4 x4 interface, with NVMe 1.3c and NVMe MI 1.1 protocols.



In terms of manufacturer-rated performance, Solidigm is claiming up to 865,000 IOPS 4K random reads (QD256), up to 495,000 IOPS 4K random writes (QD256), and response times of 13 µs for 4K sequential writes (QD1), and 10 µs sequential read at QD1. The drive offers up to 6.4 GB/s sequential reads (128K, QD128), and up to 4 GB/s sequential writes (128K, QD128). Solidigm D7-P5810 is being offered as a persistent write buffer, and a medium tiered above capacity-focused media such as the QLC-based Solidigm D5-P5336, the pure-SLC drive stores "data about data," under a cloud-storage acceleration layer (CSAL).

Solidigm is launching the D7-P5810 series with the 800 GB model, with the 1.6 TB model joining the lineup in the first half of 2024.



Solidigm Press Release​
Solidigm, a leading global provider of innovative NAND flash memory solutions, is proud to announce the company's first ultra-fast, single-level cell (SLC) solid-state storage drive (SSD) for the data center market—the Solidigm D7-P5810. The D7-P5810 is a PCIe Gen 4.0 drive built on Solidigm's proven 144-layer SLC 3D NAND.

A new addition to Solidigm's high-performing D7 Series, the D7-P5810 is designed for high-endurance and extreme write-intensive workloads. This ultra-fast Storage Class Memory (SCM) SSD offers up to 50 Drive Writes Per Day (DWPD) for random, 65 DWPD for sequential, and up to 2X better performance than the competition for caching, high-performance computing (HPC), data logging, journaling, and more, at less than ~20% of the cost of non-NAND SCM technologies.

SLC as a Storage Accelerator
The D7-5810 is ideally suited as a storage accelerator in front of highly dense capacity tiers (like QLC-based SSDs), adding significant benefit in the following use cases:
  • Metadata/logging: placing performance-sensitive data such as metadata or logs on SLC can accelerate system performance by using SLC as a dedicated Write-Ahead Log in Ceph clusters, for example.
  • Caching: SLC SSDs can act as a write buffer or cache to help remove performance bottlenecks, dramatically improve application performance, and improve TCO.
  • Tiering: data is written first to the SLC SSD so commits are fast, and subsequent reads are faster. As data becomes colder, it can be aggregated, compressed, and written in bulk to underlying higher-capacity QLC drives (like Solidigm's D5-P5336) for space-efficient storage on that media. Write-shaping software such as Cloud Storage Acceleration Layer (CSAL), further delivers a solution that extends the density, TCO and sustainability value of QLC to more workloads.

"By introducing the D7-P5810, Solidigm has now further expanded its industry-leading endurance swim lane coverage. We are pleased to offer a new ultra-fast data center SSD with compelling specifications to serve customers' very high write-intensive needs," said Greg Matson, VP of Strategic Planning and Marketing at Solidigm.

The D7-P5810 is available now in 800 GB (U.2 15 mm form factor). A 1.6 TB version will be available in the first half of 2024.

Solidigm Slide Deck​


View at TechPowerUp Main Site | Source
 
Joined
Nov 6, 2016
Messages
1,658 (0.59/day)
Location
NH, USA
System Name Lightbringer
Processor Ryzen 7 2700X
Motherboard Asus ROG Strix X470-F Gaming
Cooling Enermax Liqmax Iii 360mm AIO
Memory G.Skill Trident Z RGB 32GB (8GBx4) 3200Mhz CL 14
Video Card(s) Sapphire RX 5700XT Nitro+
Storage Hp EX950 2TB NVMe M.2, HP EX950 1TB NVMe M.2, Samsung 860 EVO 2TB
Display(s) LG 34BK95U-W 34" 5120 x 2160
Case Lian Li PC-O11 Dynamic (White)
Power Supply BeQuiet Straight Power 11 850w Gold Rated PSU
Mouse Glorious Model O (Matte White)
Keyboard Royal Kludge RK71
Software Windows 10
Wish they'd make these drives in 250GB capacity for consumers, like to try it out as an OS drive
 

bug

Joined
May 22, 2015
Messages
13,445 (4.03/day)
Processor Intel i5-12600k
Motherboard Asus H670 TUF
Cooling Arctic Freezer 34
Memory 2x16GB DDR4 3600 G.Skill Ripjaws V
Video Card(s) EVGA GTX 1060 SC
Storage 500GB Samsung 970 EVO, 500GB Samsung 850 EVO, 1TB Crucial MX300 and 2TB Crucial MX500
Display(s) Dell U3219Q + HP ZR24w
Case Raijintek Thetis
Audio Device(s) Audioquest Dragonfly Red :D
Power Supply Seasonic 620W M12
Mouse Logitech G502 Proteus Core
Keyboard G.Skill KM780R
Software Arch Linux + Win10
Joined
Feb 15, 2019
Messages
1,595 (0.81/day)
System Name Personal Gaming Rig
Processor Ryzen 7800X3D
Motherboard MSI X670E Carbon
Cooling MO-RA 3 420
Memory 32GB 6000MHz
Video Card(s) RTX 4090 ICHILL FROSTBITE ULTRA
Storage 4x 2TB Nvme
Display(s) Samsung G8 OLED
Case Silverstone FT04
So we now come back to SLC again, with a premium price tag.
 
Joined
Sep 1, 2020
Messages
2,106 (1.49/day)
Location
Bulgaria
Is there a table somewhere with the price of 1 gigabyte of SLC from the first year it was on the market until today?
 

TheLostSwede

News Editor
Joined
Nov 11, 2004
Messages
16,689 (2.32/day)
Location
Sweden
System Name Overlord Mk MLI
Processor AMD Ryzen 7 7800X3D
Motherboard Gigabyte X670E Aorus Master
Cooling Noctua NH-D15 SE with offsets
Memory 32GB Team T-Create Expert DDR5 6000 MHz @ CL30-34-34-68
Video Card(s) Gainward GeForce RTX 4080 Phantom GS
Storage 1TB Solidigm P44 Pro, 2 TB Corsair MP600 Pro, 2TB Kingston KC3000
Display(s) Acer XV272K LVbmiipruzx 4K@160Hz
Case Fractal Design Torrent Compact
Audio Device(s) Corsair Virtuoso SE
Power Supply be quiet! Pure Power 12 M 850 W
Mouse Logitech G502 Lightspeed
Keyboard Corsair K70 Max
Software Windows 10 Pro
Benchmark Scores https://valid.x86.fr/yfsd9w
Is there a table somewhere with the price of 1 gigabyte of SLC from the first year it was on the market until today?
Not for free, but you can sign up here and let us know.
 
Joined
Sep 1, 2020
Messages
2,106 (1.49/day)
Location
Bulgaria
Not for free
This is problem for me. But I didn't think that there has price history for SLC nand per gigabyte from it's first market presence. That was so many years ago. Probably before this website existence.
 

bug

Joined
May 22, 2015
Messages
13,445 (4.03/day)
Processor Intel i5-12600k
Motherboard Asus H670 TUF
Cooling Arctic Freezer 34
Memory 2x16GB DDR4 3600 G.Skill Ripjaws V
Video Card(s) EVGA GTX 1060 SC
Storage 500GB Samsung 970 EVO, 500GB Samsung 850 EVO, 1TB Crucial MX300 and 2TB Crucial MX500
Display(s) Dell U3219Q + HP ZR24w
Case Raijintek Thetis
Audio Device(s) Audioquest Dragonfly Red :D
Power Supply Seasonic 620W M12
Mouse Logitech G502 Proteus Core
Keyboard G.Skill KM780R
Software Arch Linux + Win10
So we now come back to SLC again, with a premium price tag.
We're not back to anything, enterprise SLC SKUs were always available.
 

TheLostSwede

News Editor
Joined
Nov 11, 2004
Messages
16,689 (2.32/day)
Location
Sweden
System Name Overlord Mk MLI
Processor AMD Ryzen 7 7800X3D
Motherboard Gigabyte X670E Aorus Master
Cooling Noctua NH-D15 SE with offsets
Memory 32GB Team T-Create Expert DDR5 6000 MHz @ CL30-34-34-68
Video Card(s) Gainward GeForce RTX 4080 Phantom GS
Storage 1TB Solidigm P44 Pro, 2 TB Corsair MP600 Pro, 2TB Kingston KC3000
Display(s) Acer XV272K LVbmiipruzx 4K@160Hz
Case Fractal Design Torrent Compact
Audio Device(s) Corsair Virtuoso SE
Power Supply be quiet! Pure Power 12 M 850 W
Mouse Logitech G502 Lightspeed
Keyboard Corsair K70 Max
Software Windows 10 Pro
Benchmark Scores https://valid.x86.fr/yfsd9w
This is problem for me. But I didn't think that there has price history for SLC nand per gigabyte from it's first market presence. That was so many years ago. Probably before this website existence.
They have collected data since 2007...
No, not in Gigabyte, but in Gigabit.
 
Joined
Sep 1, 2020
Messages
2,106 (1.49/day)
Location
Bulgaria
They have collected data since 2007
The first SSD in history was introduced in 1976 and has been in use since. The first commercial, i.e. on the market, where anyone with enough money can buy it, has been since 1991. SLC has been around since 1987. Yes, it seems like 2007 is way back in the past. But it's not enough for me. ;)
 

Frick

Fishfaced Nincompoop
Joined
Feb 27, 2006
Messages
19,027 (2.84/day)
Location
Piteå
System Name White DJ in Detroit
Processor Ryzen 5 5600
Motherboard Asrock B450M-HDV
Cooling Be Quiet! Pure Rock 2
Memory 2 x 16GB Kingston Fury 3400mhz
Video Card(s) XFX 6950XT Speedster MERC 319
Storage Kingston A400 240GB | WD Black SN750 2TB |WD Blue 1TB x 2 | Toshiba P300 2TB | Seagate Expansion 8TB
Display(s) Samsung U32J590U 4K + BenQ GL2450HT 1080p
Case Fractal Design Define R4
Audio Device(s) Line6 UX1 + some headphones, Nektar SE61 keyboard
Power Supply Corsair RM850x v3
Mouse Logitech G602
Keyboard Cherry MX Board 1.0 TKL Brown
Software Windows 10 Pro
Benchmark Scores Rimworld 4K ready!
The first SSD in history was introduced in 1976 and has been in use since. The first commercial, i.e. on the market, where anyone with enough money can buy it, has been since 1991. SLC has been around since 1987. Yes, it seems like 2007 is way back in the past. But it's not enough for me. ;)

Why do you want to know? Could be a cool project to find out on your own.
 

GabrielLP14

SSD DB Maintainer
Staff member
Joined
Aug 2, 2021
Messages
274 (0.25/day)
Location
São Paulo, Brazil
System Name Gabriel-PC
Processor Core i7-13700K (All Core 5.7GHz)
Motherboard MSI Z790-P PRO WIFI DDR4
Cooling NZXT Kraken X72 360mm
Memory 32GB Netac DDR4-3200 MT/s CL-16
Video Card(s) RTX 4070 Ti Super Colorful
Storage Memblaze P7940 7.68TB Gen5 (OS), SK Hynix P41 2TB (Games) + 4x 4TB WD Black HD (Synology NAS DS1817)
Display(s) AOC G2460PF 144Hz 1ms (Kinda trash)
Case NZXT Phantom 820 Black
Audio Device(s) Motherboard onboard audio (good enough for me)
Power Supply Corsair RM1000X
Mouse Have no idea (Generic)
Keyboard Have no idea (Generic)
Software Windows 11 Pro 23H2 + Windows Server 2022 + Synology in NAS
So we now come back to SLC again, with a premium price tag.
When in theory... but in reality its just QLC N38A 1Tb 144-Layers running in pSLC Mode
 
Joined
Sep 1, 2020
Messages
2,106 (1.49/day)
Location
Bulgaria
Why do you want to know? Could be a cool project to find out on your own.
Just curiosity. I have no commercial intentions. Anyway, this is old information and should not be confidential or paid access.
 
Joined
Aug 21, 2013
Messages
1,769 (0.44/day)
Wish they'd make these drives in 250GB capacity for consumers, like to try it out as an OS drive
Not much point with these speeds. It has average or even first gen PCIe 4.0 speeds at 6400/4000 r/w.
It's main benefit is endurance but for OS drive it's largely wasted unless you do full drive writes daily for some reason.

Also the press release is pretty vague as to whether this really is 100% SLC because last i checked there was no 144 layer SLC in production.
So my suspicion is that it's TLC with a larger that normal cache that acts like SLC so pseudo-SLC.
 

Frick

Fishfaced Nincompoop
Joined
Feb 27, 2006
Messages
19,027 (2.84/day)
Location
Piteå
System Name White DJ in Detroit
Processor Ryzen 5 5600
Motherboard Asrock B450M-HDV
Cooling Be Quiet! Pure Rock 2
Memory 2 x 16GB Kingston Fury 3400mhz
Video Card(s) XFX 6950XT Speedster MERC 319
Storage Kingston A400 240GB | WD Black SN750 2TB |WD Blue 1TB x 2 | Toshiba P300 2TB | Seagate Expansion 8TB
Display(s) Samsung U32J590U 4K + BenQ GL2450HT 1080p
Case Fractal Design Define R4
Audio Device(s) Line6 UX1 + some headphones, Nektar SE61 keyboard
Power Supply Corsair RM850x v3
Mouse Logitech G602
Keyboard Cherry MX Board 1.0 TKL Brown
Software Windows 10 Pro
Benchmark Scores Rimworld 4K ready!
Just curiosity. I have no commercial intentions. Anyway, this is old information and should not be confidential or paid access.

Then research it is.
 

GabrielLP14

SSD DB Maintainer
Staff member
Joined
Aug 2, 2021
Messages
274 (0.25/day)
Location
São Paulo, Brazil
System Name Gabriel-PC
Processor Core i7-13700K (All Core 5.7GHz)
Motherboard MSI Z790-P PRO WIFI DDR4
Cooling NZXT Kraken X72 360mm
Memory 32GB Netac DDR4-3200 MT/s CL-16
Video Card(s) RTX 4070 Ti Super Colorful
Storage Memblaze P7940 7.68TB Gen5 (OS), SK Hynix P41 2TB (Games) + 4x 4TB WD Black HD (Synology NAS DS1817)
Display(s) AOC G2460PF 144Hz 1ms (Kinda trash)
Case NZXT Phantom 820 Black
Audio Device(s) Motherboard onboard audio (good enough for me)
Power Supply Corsair RM1000X
Mouse Have no idea (Generic)
Keyboard Have no idea (Generic)
Software Windows 11 Pro 23H2 + Windows Server 2022 + Synology in NAS
Not much point with these speeds. It has average or even first gen PCIe 4.0 speeds at 6400/4000 r/w.
It's main benefit is endurance but for OS drive it's largely wasted unless you do full drive writes daily for some reason.

Also the press release is pretty vague as to whether this really is 100% SLC because last i checked there was no 144 layer SLC in production.
So my suspicion is that it's TLC with a larger that normal cache that acts like SLC so pseudo-SLC.
Its not SLC
it's QLC running in pSLC Mode, the drive should be 4TB but since its a 1/4 o the capacity, its 1TB with 800GB available so its over 200GB of over provisioning
 

bug

Joined
May 22, 2015
Messages
13,445 (4.03/day)
Processor Intel i5-12600k
Motherboard Asus H670 TUF
Cooling Arctic Freezer 34
Memory 2x16GB DDR4 3600 G.Skill Ripjaws V
Video Card(s) EVGA GTX 1060 SC
Storage 500GB Samsung 970 EVO, 500GB Samsung 850 EVO, 1TB Crucial MX300 and 2TB Crucial MX500
Display(s) Dell U3219Q + HP ZR24w
Case Raijintek Thetis
Audio Device(s) Audioquest Dragonfly Red :D
Power Supply Seasonic 620W M12
Mouse Logitech G502 Proteus Core
Keyboard G.Skill KM780R
Software Arch Linux + Win10
Yep that's what i suspected but even worse - QLC advertised as SLC.
It's advertised as a cache drive, QLC is no issue here. You're not bothered by the slower writes, because cache is read way more often than it is written. And if it goes belly-up, it's just one drive among a hundred others, you just replace it (but that applies to any enterprise storage setup, it's not particular to cache drives).
 

GabrielLP14

SSD DB Maintainer
Staff member
Joined
Aug 2, 2021
Messages
274 (0.25/day)
Location
São Paulo, Brazil
System Name Gabriel-PC
Processor Core i7-13700K (All Core 5.7GHz)
Motherboard MSI Z790-P PRO WIFI DDR4
Cooling NZXT Kraken X72 360mm
Memory 32GB Netac DDR4-3200 MT/s CL-16
Video Card(s) RTX 4070 Ti Super Colorful
Storage Memblaze P7940 7.68TB Gen5 (OS), SK Hynix P41 2TB (Games) + 4x 4TB WD Black HD (Synology NAS DS1817)
Display(s) AOC G2460PF 144Hz 1ms (Kinda trash)
Case NZXT Phantom 820 Black
Audio Device(s) Motherboard onboard audio (good enough for me)
Power Supply Corsair RM1000X
Mouse Have no idea (Generic)
Keyboard Have no idea (Generic)
Software Windows 11 Pro 23H2 + Windows Server 2022 + Synology in NAS
Yep that's what i suspected but even worse - QLC advertised as SLC.
but its a great drive i hope i can get one, i got one from Memblaze PBlaze7 7940 7.68TB PCIe 5.0 x4
 

Attachments

  • 1695153143214.jpg
    1695153143214.jpg
    3.8 MB · Views: 35
Joined
Feb 1, 2019
Messages
2,881 (1.45/day)
Location
UK, Leicester
System Name Main PC
Processor 13700k
Motherboard Asrock Z690 Steel Legend D4 - Bios 13.02
Cooling Noctua NH-D15S
Memory 32 Gig 3200CL14
Video Card(s) 3080 RTX FE 10G
Storage 1TB 980 PRO, 2TB SN850X, 2TB DC P4600, 1TB 860 EVO, 2x 3TB WD Red, 2x 4TB WD Red
Display(s) LG 27GL850
Case Fractal Define R4
Audio Device(s) Soundblaster AE-9
Power Supply Antec HCG 750 Gold
Software Windows 10 21H2 LTSC
Its not SLC
it's QLC running in pSLC Mode, the drive should be 4TB but since its a 1/4 o the capacity, its 1TB with 800GB available so its over 200GB of over provisioning
I suspected the same as how it was worded, the big bold SLC for that reason doesnt sit right with me, they missing a small 'p'.

Over provisioning also seems to be following the long term trend of being cut back. 30% in DC P4600, 20% in this drive, and I think enterprise used to be over 50%.
 

GabrielLP14

SSD DB Maintainer
Staff member
Joined
Aug 2, 2021
Messages
274 (0.25/day)
Location
São Paulo, Brazil
System Name Gabriel-PC
Processor Core i7-13700K (All Core 5.7GHz)
Motherboard MSI Z790-P PRO WIFI DDR4
Cooling NZXT Kraken X72 360mm
Memory 32GB Netac DDR4-3200 MT/s CL-16
Video Card(s) RTX 4070 Ti Super Colorful
Storage Memblaze P7940 7.68TB Gen5 (OS), SK Hynix P41 2TB (Games) + 4x 4TB WD Black HD (Synology NAS DS1817)
Display(s) AOC G2460PF 144Hz 1ms (Kinda trash)
Case NZXT Phantom 820 Black
Audio Device(s) Motherboard onboard audio (good enough for me)
Power Supply Corsair RM1000X
Mouse Have no idea (Generic)
Keyboard Have no idea (Generic)
Software Windows 11 Pro 23H2 + Windows Server 2022 + Synology in NAS

bug

Joined
May 22, 2015
Messages
13,445 (4.03/day)
Processor Intel i5-12600k
Motherboard Asus H670 TUF
Cooling Arctic Freezer 34
Memory 2x16GB DDR4 3600 G.Skill Ripjaws V
Video Card(s) EVGA GTX 1060 SC
Storage 500GB Samsung 970 EVO, 500GB Samsung 850 EVO, 1TB Crucial MX300 and 2TB Crucial MX500
Display(s) Dell U3219Q + HP ZR24w
Case Raijintek Thetis
Audio Device(s) Audioquest Dragonfly Red :D
Power Supply Seasonic 620W M12
Mouse Logitech G502 Proteus Core
Keyboard G.Skill KM780R
Software Arch Linux + Win10
I suspected the same as how it was worded, the big bold SLC for that reason doesnt sit right with me, they missing a small 'p'.

Over provisioning also seems to be following the long term trend of being cut back. 30% in DC P4600, 20% in this drive, and I think enterprise used to be over 50%.
I don't think you really need 50% overprovisioning. Overprovisioning is there so when cells start to die, data can be moved to new cells. But if the monitoring software tells you you're close to 20% dead cells, it's time to replace the drive, no matter how much overprovisioning you have left.
 
Joined
Dec 12, 2012
Messages
727 (0.17/day)
Location
Poland
System Name THU
Processor Intel Core i5-13600KF
Motherboard ASUS PRIME Z790-P D4
Cooling SilentiumPC Fortis 3 v2 + Arctic Cooling MX-2
Memory Crucial Ballistix 2x16 GB DDR4-3600 CL16 (dual rank)
Video Card(s) MSI GeForce RTX 4070 Ventus 3X OC 12 GB GDDR6X (2610/21000 @ 0.91 V)
Storage Lexar NM790 2 TB + Corsair MP510 960 GB + PNY XLR8 CS3030 500 GB + Toshiba E300 3 TB
Display(s) LG OLED C8 55" + ASUS VP229Q
Case Fractal Design Define R6
Audio Device(s) Yamaha RX-V381 + Monitor Audio Bronze 6 + Bronze FX | FiiO E10K-TC + Sony MDR-7506
Power Supply Corsair RM650
Mouse Logitech M705 Marathon
Keyboard Corsair K55 RGB PRO
Software Windows 10 Home
Benchmark Scores Benchmarks in 2024?
@csendesmark

Well I hope that some manufacturer will release a 0.5 or 1TB full SLC drive with PCIe gen4 interface. It is still some time before I actually going to replace it.
My drive is just bit passed the warranty time, no issue so far. But I want fast and very reliable drive for my system drive, no need for big size, even an other half TB fair.

Your wish has come true. ;)
 
Joined
Jan 3, 2021
Messages
2,927 (2.27/day)
Location
Slovenia
Processor i5-6600K
Motherboard Asus Z170A
Cooling some cheap Cooler Master Hyper 103 or similar
Memory 16GB DDR4-2400
Video Card(s) IGP
Storage Samsung 850 EVO 250GB
Display(s) 2x Oldell 24" 1920x1200
Case Bitfenix Nova white windowless non-mesh
Audio Device(s) E-mu 1212m PCI
Power Supply Seasonic G-360
Mouse Logitech Marble trackball, never had a mouse
Keyboard Key Tronic KT2000, no Win key because 1994
Software Oldwin
Its not SLC
it's QLC running in pSLC Mode, the drive should be 4TB but since its a 1/4 o the capacity, its 1TB with 800GB available so its over 200GB of over provisioning
I think it would be best to mark it just like this in your database, therefore "QLC/SLC" or "QLC in SLC mode".

The lowercase "p" ... means "pseudo", which is Greek for "fake". I don't see anything fake or false or deceptive in this implementation.

This Solidigm drive, if designed properly, writes data properly - as fast or slow as necessary, with as much charge as necessary, obviously without additional SLC caching, and it stores only two levels per cell ("some electrons" or "no electrons"). So what could possibly make it pseudo? Or does "p" stand for "pure", as is emphasised by Intel, I mean, Solidigm?

SLC caching in TLC/QLC drives is different, it might be somehow "fake" SLC because it probably uses some accelerated write procedure and low level of electric charge without much regard for data retention - because it's short term. Also random writes are stored sequentially in order to achieve very high speeds, and later moved out of SLC cache to their proper locations.

Also the press release is pretty vague as to whether this really is 100% SLC because last i checked there was no 144 layer SLC in production.
So my suspicion is that it's TLC with a larger that normal cache that acts like SLC so pseudo-SLC.
So you think that when you write data to this SSD, it's first stored in the SLC cache, then eventually moved to permanent storage with 4 bits per cell, but Intel, erm, Solidigm won't tell that to us? That would be extremely deceptive advertising even for a consumer SSD, let alone enterprise.
 
Top