Kingston DCP1000 = 3.2TB PCIe SSD card

Kaido

Elite Member & Kitchen Overlord
Feb 14, 2004
42,574
193
126
#1
Been playing with these lately:

https://www.kingston.com/us/ssd/enterprise/DCP1000


The basics:

Available in 3 flavors: (all models have 28% overprovisioning)

800GB – SEDC1000H/800G (~$1,110)
1.6TB – SEDC1000H/1600G (~$1,860)
3.2TB – SEDC1000H/3200G (~$3,160)

It's a pretty slick little design...basically a PCIe gen3 8x card with four M.2 SSD's that you RAID together in software (initial installation shows four separate drives...I wish that it had hardware RAID, but I'm not sure if anything like that exists for an AIC NVMe setup like this quite yet). It has built-in power capacitors for hardware-based data loss protection in case of a power failure, as well as a DRAM cache chip. Max performance on the 3.2TB model is 6,800/6000 MB/s read/write & 1 million/180k IOPS random 4k read/write (note: 1.1 million IOPS on the 1.6TB model, slightly faster). So they are pricey, and lacking hardware RAID, but excellent performance for the money (considering a single 2TB NVMe 960 Pro running at 3,500/2,100 MB/s costs $1,250 by itself). If you're not after speed, then you can alternatively buy a standard 4TB 2.5" SATA SSD for $1,400.


Relevant info:

Data sheet
Support info
Kingston SSD Manager software
Firmware update (mine came with the latest Rev. E7FTD4.7)


Reviews:

http://www.thessdreview.com/our-rev...review-1-6tb-7gbs-1-mil-iops-single-hhhl-ssd/

https://www.kitguru.net/components/...ingston-dcp1000-1-6tb-ssd-review-7gb-s-beast/


Special notes: (FAQ)

1. The DCP1000 will present itself as 4 physical devices. The system BIOS and OS will see 4 physical independent SSDs. The drive can be configured to a single RAID or be used as 4 independent drives. You have to create a software-based RAID within your Operating System. Any SW RAID could be used in theory, but RAID 0 and RAID 1 are recommended. RAID 5 is also possible but may have an impact on over endurance of the SSD as parity protection may cause extra writes to the parity drive. The recommended RAID stripe size for RAID 0 is 256K chunk size. Customers may change this size based upon what is best for their operating environment.

2. The recommended configuration is to boot from a separate OS drive (SATA) and use DCP1000 as the data drive.

3. Any recent chipset supporting PCIe Gen. 3 is sufficient. Minimum x8 Physical slot is required with minimum electrical connection x8 for optimal performance on PCIe Gen. 3. The card is backward-compatible with PCIe Gen. 2 & Gen. 11. Additionally, it supports x4, x2, and x1 modes in a compatible socket. The DCP is a Gen3x8 card, so 8 lanes are recommended. But if deployed into a x4 socket, the DCP1000 will auto negotiate to x4. If deployed into a physical x8 socket that is electrically lower, it will negotiate to those electrical connections during the learning process (x1-x8). There will be performance loss if used with x4 lanes or fewer. The DCP1000 runs from 12V power only, provided from the PCIe socket. DCP1000 has an optional AUX power cable that can be used if a motherboard cannot supply sufficient power (this situation is rare). Almost all systems provide sufficient power directly from PCIe sock

4. The DCP1000 offers high performance capability with 7GB/s of sequential performance and over 1 million read IOPS.

5. Warranty: 5 years – or until the drive’s maximum endurance is consumed. The point where endurance is exhausted is defined as the lowest SSD Life Left reading on any of the 4 internal data drives showing a 1. SSD Life Left for warranty purposes is based on the single worst drive usage.

6. Should I disable write caching on the DCP1000? No – this is not required as this will lower the SSD performance. The DCP1000 supports Power Foss (Pfail) protection so data that is ack’ed by the DCP1000 will be flushed to cache in the event of sudden power loss. Write cache should be left enabled.

7. The DCP1000 support auto thermal protection. In case the operating environments reaches above 80 degrees Celsius (drive temperature – not heat sink temperature) – the drive will begin to thermal throttle. Performance will throttle by 63MB/degree for read and 50MB/degree for writes. At what temperature will the throttling stop and restore original performance? The setpoint is at 80C based on the controller’s built-in temperature sensor for both triggering and restoring performance.

8. SMART attributes can be viewed through Kingston’s SSD Storage Manager Software or any standard SMART tools can be used to access the SMART data on a per M.2 basis.

9. OS support: Windows 8.1, Windows 10, Windows Server 2012 R2, Windows 7 and Windows Server 2008 R2 via updates or Hotfix driver download, Linux Kernel 3.3 and higher, FreeBSD 10.x/11, VMWare vShpere 6.0 (vShpere 5.5 as download driver).
 
Aug 4, 2015
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21
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#2
I wish that it had hardware RAID, but I'm not sure if anything like that exists for an AIC NVMe setup like this quite yet
Marvell's new 88NR2241 NVMe switch is exactly what you're looking for. Hardware RAID 0/1/10, appears to the host system as a standard NVMe drive (thus bootable) with a PCIe 3 x8 link and supports four x4 SSDs downstream of the switch. By the end of the year, it will probably have replaced all the software RAID based solutions for the desktop/workstation environment, and will probably be fairly useful in the server space as well.

Should I disable write caching on the DCP1000?
For SSDs that claim to have power loss protection, Windows usually doesn't give you the option of changing the write caching setting. (The checkbox doesn't disappear, but it doesn't do anything and attempting to toggle it just gets you an error message.)
 

Kaido

Elite Member & Kitchen Overlord
Feb 14, 2004
42,574
193
126
#3
Marvell's new 88NR2241 NVMe switch is exactly what you're looking for. Hardware RAID 0/1/10, appears to the host system as a standard NVMe drive (thus bootable) with a PCIe 3 x8 link and supports four x4 SSDs downstream of the switch. By the end of the year, it will probably have replaced all the software RAID based solutions for the desktop/workstation environment, and will probably be fairly useful in the server space as well.
VERY excited to see this product line expanded!

 

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