Western Digital CL SN720 NVMe SSD for Data Centers

Purpose-Built for Boot and Edge Computing Performance and Reliability

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OVERVIEW

Reliable and High Performance for Read-Intensive Workloads


Edge Computing and operating system boot operations require high performance and reliable storage. Edge computing – content delivery (CDNs), online gaming content, IoT, data analytics – is heavy on data reads. Rapid operating systems boot performance is critical for public cloud services to quickly launch computing instances. Large-node compute clusters need rapid boot performance for boot times and rebooting.

Western Digital CL SN720 is a purpose-built NVMe M.2 form factor for the specific requirements of boot and edge workloads. Reliable read performance, power efficiency, data security standards support, and remote management ability are some of the key attributes.

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High Performance for Boot and Edge

Performance

330,000 random read IOPS 2,700 random write IOPS 3,250 sequential read MiB/s 1,400 sequential write MiB/s

Power Consumption

Avg. Max Read/Write 5.5W

Security

Instant Secure Erase (ISE), TCG Opal 2.01 Self Encrypting Drive (SED)

Highlights

  • M.2 2280 form factor (22mm x 80mm)
  • 5-year limited warranty, 2M MTTF
  • Remote Diagnostic Tools
  • BOM Controlled PCN Notification
  • 5.5W active power
  • High Resistance to Errors UBER 10-17
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Applications and Workload

  • Content Delivery Networks (CDN)
  • Video Caching
  • Online/Internet Gaming
  • Industrial IoT, IoT
  • Operating System boot drives

Specifications

Specification 1

Form Factor

Interface

Formatted Capacity

Security

256GB

512GB

1TB

2TB

Performance 4

Sequential Read, (max. MB/s, 64KiB, QD32)

up to 3,250

Sequential Write, (max. MB/s, 64KiB, QD32)

up to 1,400

Random Read (max IOPS, 4KiB, QD128)

up to 330K

Random Write (max IOPS, 4KiB QD4)

up to 2.7K

Mixed Random Read/Write (max IOPS 70%R/30%W, 4KiB, D128)

7K

Latency (μs, 4KiB Random Read QD1, 99%)

0.1

Endurance (TBW)

256GB

512GB

1TB

2TB

Power

Peak Power (10μs)

2.8

Average Active Power (mW)

up to 140

Low Power (PS3) (mW)

up to 100

Sleep (PS4) (mW)

2.5

Supply Voltage (V / +-5%)

3.3

Reliability

MTTF

UBER

Environmental

Operating Temperature

Non-operating Temperature

Certifications

Limited Warranty

Physical Dimensions

Width

Length

Thickness (max)

Weight

Ordering Information

256GB

SDAQNTW-256G-2000

512GB

SDAQNTW-512G-2000

1TB

SDAQNTW-1T00-2000

2TB3

SDAQNTW-2T00-2000

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Disclosures

1.

Specifications below are base on 1TB capacity and vary by capacity. Contact Western Digital for further details. Product specifications subject to change without notice. Not all products are available in all regions of the world.

2.

As used for storage coapacity, one gigabyte (GB) = one billion bytes and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environtment.

3.

2TB expected availability in early 2019.

4.

Test Conditions: Sustained Performance is based on the FIO benchmark using a 1TB Western Digital CL SN720 NVMe SSD and a 10000MB LBA range ASUS Z170A desktop with Intel® i7-6700K 4.0GHz, 8GB 2133Mhz DDR4. Windows 10 64-bit using Microsoft StorNMVe driver, secondary drive. Performance may vary based on host device. 1 MB = 1,000,000 bytes. IOPS = input/output operations per second.

5.

TBW (terabytes written) values calculated using JEDEC client workload (JESD219) and vary by product capacity.

6.

Measured using MobileMark™ 2014 on HP EliteBook X360 1030 G2 with i7-7600U, 8GB RAM. Windows 10 Pro, 64-bit RS3 using Microsoft StorNVMe driver, primary drive.

7.

Power measurements at 25oC.

8.

MTTF = Mean Time To Failure based on internal testing and by using Telcordia stress part testing (Telecordia SR-332), GB, 40oC). MTTF is based on a sample population and is estimated by statistical measurements and acceleration algorithms. MTTF does not predict an individual drive's reliability and does not constitute a warranty.

9.

Operational temperature as reported by device (composite temperature).

10.

Non-operational storage temperature does not guarantee data retention.

11.

5 years or Max Endurance (TBW) limit, whichever occurs first. 5 year warranty in regions not recognizing "limited". See  Western Digital Support

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