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Abstract
The ThinkSystem S4520 Read Intensive SATA SSDs are advanced 6Gb SATA solid-state drives that use 144-layer Intel 3D NAND TLC Flash Memory technology to provide an affordable solution with industry leading performance.
This product guide provides essential presales information to understand the S4520 SSDs, their key features and specifications, components and options, and configuration guidelines. This guide is intended for technical specialists, sales specialists, sales engineers, IT architects, and other IT professionals who want to learn more about S4520 SSDs and consider their use in IT solutions.
Change History
Changes in the March 1, 2022 update:
- New 2.5" and 3.5" non-hot-swap drives for ThinkSystem ST50 V2:
- ThinkSystem ST50 V2 2.5" S4520 240GB Read Intensive SATA 6Gb NHS SSD, 4XB7A77459
- ThinkSystem ST50 V2 2.5" S4520 480GB Read Intensive SATA 6Gb NHS SSD, 4XB7A77460
- ThinkSystem ST50 V2 2.5" S4520 960GB Read Intensive SATA 6Gb NHS SSD, 4XB7A77461
- ThinkSystem ST50 V2 3.5" S4520 240GB Read Intensive SATA 6Gb NHS SSD, 4XB7A77454
- ThinkSystem ST50 V2 3.5" S4520 480GB Read Intensive SATA 6Gb NHS SSD, 4XB7A77455
- ThinkSystem ST50 V2 3.5" S4520 960GB Read Intensive SATA 6Gb NHS SSD, 4XB7A77456
Introduction
The ThinkSystem S4520 Read Intensive SATA SSDs use 144-layer Intel 3D NAND TLC Flash Memory technology with a 6Gbps SATA interface to provide an affordable solution with industry leading performance.
Compared with the S4510 series, these new Read Intensive (Entry) drives offer improved endurance. The S4520 SSDs are optimized for read-intensive applications such as boot, web servers, lower data rate operational databases and analytics.
Figure 1. ThinkSystem S4520 Read Intensive SATA 6Gb SSD (without the hot-swap drive tray)
Did you know?
By combining the latest Intel 3D NAND TLC Flash Memory technology with Intel’s latest controller technology, the design of the S4520 SSDs delivers consistent performance, reduced power consumption, and end-to-end data protection, as well as being optimized for IOPS/watt and cost/IOPS.
Rigorous testing of S4520 SSDs by Lenovo through the ServerProven program assures a high degree of storage subsystem compatibility and reliability. Providing additional peace of mind, these drives are covered under Lenovo warranty.
Part number information
The following table lists the ordering information for drives for ThinkSystem servers.
Features
The S4520 SSDs have the following features:
- 2.5-inch drives in multiple form form factors
- Cost-effective Intel 3D NAND TLC Flash Memory
- Endurance of up to 3 drive writes per day (DWPD) for 5 years, using Intel Standard Endurance Technology (SET).
- SATA TLC solid-state drive with high read performance and consistently low latencies to fulfill client needs in the enterprise space
- High reliability and enhanced ruggedness
- Energy savings, with typical write power consumption as low as 2.3 W per drive
- Absence of moving parts to reduce potential failure points in the server
- S.M.A.R.T. support
- Advanced Encrypting Standard (AES) 256-bit encryption
- Full end-to-end data path protection
- Thermal throttling to extend the life of the drive
- Enhanced power loss data protection
SSDs have a huge but finite number of program/erase (P/E) cycles, which affect how long they can perform write operations and thus their life expectancy. Read Intensive (Entry) SSDs typically have a better cost per read IOPS ratio but lower endurance and performance compared to Write Intensive (Performance) SSDs. SSD write endurance is typically measured by the number of program/erase cycles that the drive can incur over its lifetime, which is listed as total bytes written (TBW) in the device specification.
The TBW value that is assigned to a solid-state device is the total bytes of written data that a drive can be guaranteed to complete. Reaching this limit does not cause the drive to immediately fail; the TBW simply denotes the maximum number of writes that can be guaranteed. A solid-state device does not fail upon reaching the specified TBW. However, at some point after surpassing the TBW value (and based on manufacturing variance margins), the drive reaches the end-of-life point, at which time the drive goes into read-only mode. Because of such behavior, careful planning must be done to use SSDs in the application environments to ensure that the TBW of the drive is not exceeded before the required life expectancy.
For example, the 960 GB S4520 drive has an endurance of 5,300 TB of total bytes written (TBW). This means that for full operation over five years, write workload must be limited to no more than 2,904 GB of writes per day, which is equivalent to 3.0 full drive writes per day (DWPD). For the device to last three years, the drive write workload must be limited to no more than 4,840 GB of writes per day, which is equivalent to 5.0 full drive writes per day.
Technical specifications
The following table presents technical specifications for the S4520 SSDs.
Server support
The following tables list the ThinkSystem servers that are compatible.
Operating system support
SAS and SATA SSDs operate transparently to users, storage systems, applications, databases, and operating systems.
Operating system support is based on the controller used to connect to the drives. Consult the controller product guide for more information:
- RAID controllers: https://lenovopress.com/servers/options/raid
- SAS HBAs: https://lenovopress.com/servers/options/hba
Warranty
The S4520 SSDs carry a one-year, customer-replaceable unit (CRU) limited warranty. When the SSDs are installed in a supported server, these drives assume the servers’s base warranty and any warranty upgrades.
Solid State Memory cells have an intrinsic, finite number of program/erase cycles that each cell can incur. As a result, each solid state device has a maximum amount of program/erase cycles to which it can be subjected. The warranty for Lenovo solid state drives (SSDs) is limited to drives that have not reached the maximum guaranteed number of program/erase cycles, as documented in the Official Published Specifications for the SSD product. A drive that reaches this limit may fail to operate according to its Specifications.
Physical specifications
The S4520 SSDs have the following physical specifications (approximate, without the tray):
- Height: 7 mm (0.3 in.)
- Width: 70 mm (2.8 in.)
- Depth: 100 mm (4.0 in.)
- Weight: less than 70 g (2.5 oz lb)
Shipping dimensions and weight - 2.5-inch drives (approximate, including the tray):
- Height: 63 mm (2.5 in.)
- Width: 174 mm (6.9 in.)
- Depth: 133 mm (5.2 in.)
- Weight: 434 g (1.0 lb)
Shipping dimensions and weight - 3.5-inch drives (approximate, including the tray):
- Height: 95 mm (3.7 in.)
- Width: 257 mm (10.1 in.)
- Depth: 193 mm (7.6 in.)
- Weight: 484 g (1.1 lb)
Operating environment
The S4520 SSDs are supported in the following environment:
- Temperature: 0 - 70°C (32 - 158°F)
- Relative humidity: 5 - 95% (noncondensing)
- Maximum altitude: 3,050 m (10,000 ft)
Agency approvals
The S4520 SSDs conform to the following regulations:
- FCC Title 47, Part 15B, Class B
- EN-55035:2017
- EN-55022:2006
- EN-55032:2012
- Low Voltage Directive (LVD) 2014/35/EU
- EMC Directive 2014/30/EU
- RoHS Directive 2011/65/EU
- WEEE Directive 2012/19/EU
- UL 60950-1, 2nd Edition, 2014-10-14
- CSA C22.2 No. 60950-1-07, 2nd Edition, 2014-010
- UL/CSA 62368-1, 2nd Edition
- AS/NZ CISPR 32:2015
- AS/NZ CISPR 22:2009 +A1:2010
- Taiwan BSMI EMC standard CNS 13438
- Korea KCC Article 11.1
- Morocco Decree # 2574-14 (EMC)
- Canada ICES-003
- Japan VCCI
- China EFUP
Related publications and links
For more information, see the following documents:
- Lenovo ThinkSystem storage options product web page
https://lenovopress.com/lp0761-storage-options-for-thinksystem-servers - Intel SSD Data Center S4520 Series product page
https://www.intel.com/content/www/us/en/products/docs/memory-storage/solid-state-drives/data-center-ssds/storage-infrastructure-optimized-brief.html - ServerProven for SSDs
http://www.lenovo.com/us/en/serverproven - Lenovo Press product guides for RAID controllers
https://lenovopress.com/servers/options/raid - Lenovo RAID Introduction
https://lenovopress.com/lp0578-lenovo-raid-introduction - Lenovo RAID Management Tools and Resources
https://lenovopress.com/lp0579-lenovo-raid-management-tools-and-resources
Trademarks
Lenovo and the Lenovo logo are trademarks or registered trademarks of Lenovo in the United States, other countries, or both. A current list of Lenovo trademarks is available on the Web at https://www.lenovo.com/us/en/legal/copytrade/.
The following terms are trademarks of Lenovo in the United States, other countries, or both:
Lenovo®
ServerProven®
ThinkSystem®
The following terms are trademarks of other companies:
AMD is a trademark of Advanced Micro Devices, Inc.
Intel® is a trademark of Intel Corporation or its subsidiaries.
Other company, product, or service names may be trademarks or service marks of others.
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Full Change History
Changes in the March 1, 2022 update:
- New 2.5" and 3.5" non-hot-swap drives for ThinkSystem ST50 V2:
- ThinkSystem ST50 V2 2.5" S4520 240GB Read Intensive SATA 6Gb NHS SSD, 4XB7A77459
- ThinkSystem ST50 V2 2.5" S4520 480GB Read Intensive SATA 6Gb NHS SSD, 4XB7A77460
- ThinkSystem ST50 V2 2.5" S4520 960GB Read Intensive SATA 6Gb NHS SSD, 4XB7A77461
- ThinkSystem ST50 V2 3.5" S4520 240GB Read Intensive SATA 6Gb NHS SSD, 4XB7A77454
- ThinkSystem ST50 V2 3.5" S4520 480GB Read Intensive SATA 6Gb NHS SSD, 4XB7A77455
- ThinkSystem ST50 V2 3.5" S4520 960GB Read Intensive SATA 6Gb NHS SSD, 4XB7A77456
Changes in the February 22, 2022 update:
- New trayless drives for ThinkSystem SD650 V2 and SD650-N V2 servers:
- ThinkSystem Intel S4520 2.5" 7mm 240GB Entry SATA 6Gb Non-Hot Swap SSD Trayless, 4XB7A77056
- ThinkSystem Intel S4520 2.5" 7mm 480GB Entry SATA 6Gb Non-Hot Swap SSD Trayless, 4XB7A77057
Changes in the November 23, 2021 update:
- New 7mm hot-swap drive options:
- ThinkSystem 7mm S4520 1.92TB Read Intensive SATA 6Gb HS SSD, 4XB7A78622
- ThinkSystem 7mm S4520 3.84TB Read Intensive SATA 6Gb HS SSD, 4XB7A78623
- ThinkSystem 7mm S4520 7.68TB Read Intensive SATA 6Gb HS SSD, 4XB7A78624
- New non-hot-swap drives for ThinkSystem ST50 server:
- ThinkSystem ST50 3.5" S4520 240GB Read Intensive SATA 6Gb NHS SSD, 4XB7A76940
- ThinkSystem ST50 3.5" S4520 480GB Read Intensive SATA 6Gb NHS SSD, 4XB7A76941
- ThinkSystem ST50 3.5" S4520 960GB Read Intensive SATA 6Gb NHS SSD, 4XB7A76942
- New trayless drives for ThinkSystem SD650 V2 and SD650-N V2 servers:
- ThinkSystem 2.5" 7mm S4520 960GB Read Intensive SATA 6Gb Trayless SSD, 4XB7A77058
- ThinkSystem 2.5" 7mm S4520 1.92TB Read Intensive SATA 6Gb Trayless SSD, 4XB7A77059
- ThinkSystem 2.5" 7mm S4520 3.84TB Read Intensive SATA 6Gb Trayless SSD, 4XB7A78627
- ThinkSystem 2.5" 7mm S4520 7.68TB Read Intensive SATA 6Gb Trayless SSD, 4XB7A78628
- Updated the IOPS and latency data - Technical specifications section
First published: August 24, 2021
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