
ThinkSystem S4620 Mixed Use SATA 6Gb SSDs
Owner’s Manual
ThinkSystem S4620 Mixed Use SATA 6Gb SSDs
The ThinkSystem S4520 Mixed Use SATA SSDs are advanced data center SSDs optimized for mixed read-write performance, endurance, and strong data protection. Compared with the Intel S4610 series, these new drives offer improved endurance.
The S4620 SSDs with up to 5 full drive writes per day (DWD) is an excellent choice as a cache in the transactional application and high-speed storage for enterprise databases.
Figure 1. ThinkSystem S4620 Mixed Use 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 S4620 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 S4620 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 the Lenovo warranty.
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Part number information
The following table lists the ordering information for drives for ThinkSystem servers.
Table 1. Ordering information
| Part number | I Feature | I Description |
| 2.5-inch hot-swap 6 Gb SATA SSDs | ||
| 4XB7A17125 | BA7Q | ThinkSystem 2.5″ S4620 480GB Mixed Use SATA 6Gb HS SSD |
| 4XB7A17126 | BA4T | ThinkSystem 2.5″ S4620 960GB Mixed Use SATA 6Gb HS SSD |
| 4XB7A17127 | BA4U | ThinkSystem 2.5″ S4620 1.92TB Mixed Use SATA 6Gb HS SSD |
| 4XB7A17128 | BK7L | ThinkSystem 2.5″ S4620 3.84TB Mixed Use SATA 6Gb HS SSD |
| 3.5-inch hot-swap 6 Gb SATA SSDs | ||
| 4XB7A17137 | BA4W | ThinkSystem 3.5″ S4620 480GB Mixed Use SATA 6Gb HS SSD |
| 4XB7A17138 | BA4X | ThinkSystem 3.5″ S4620 960GB Mixed Use SATA 6Gb HS SSD |
| 4XB7A17139 | BA4Y | ThinkSystem 3.5″ S4620 1.92TB Mixed Use SATA 6Gb HS SSD |
| 4XB7A17140 | BK7P | ThinkSystem 3.5″ S4620 3.84TB Mixed Use SATA 6Gb HS SSD |
| 3.5-inch simple-swap 6 Gb SATA SSDs | ||
| 4XB7A17134 | BK7M | ThinkSystem 3.5″ S4620 480GB Mixed Use SATA 6Gb SS SSD |
| 4XB7A17135 | BK7N | ThinkSystem 3.5″ S4620 960GB Mixed Use SATA 6Gb SS SSD |
| 7mm 2.5-inch hot-swap 6 Gb SATA SSDs | ||
| 4XB7A17131 | BM8J | ThinkSystem 7mm S4620 480GB Mixed Use SATA 6Gb HS SSD |
| 4XB7A78626 | BM8F | ThinkSystem 7mm S4620 3.84TB Mixed Use SATA 6Gb HS SSD |
| 7mm trayless drives | ||
| 4XB7A77060 | BM8J | ThinkSystem 2.5″ 7mm S4620 480GB Mixed Use SATA 6Gb Trayless SSD |
| 4XB7A77061 | BKSY | ThinkSystem 2.5″ 7mm S4620 960GB Mixed Use SATA 6Gb Trayless SSD |
| 4XB7A77062 | BKSZ | ThinkSystem 2.5″ 7mm S4620 1.92TB Mixed Use SATA 6Gb Trayless SSD |
| 4XB7A78629 | BM1 F | ThinkSystem 2.5″ 7mm S4620 3.84TB Mixed Use SATA 6Gb Trayless SSD |
Features
The S4620 SSDs have the following features:
- 2.5-inch drives in multiple form factors:
2.5-inch SFF hot-swap tray
7mm hot-swap tray
3.5-inch LFF hot-swap tray
3.5-inch LFF simple-swap tray
Trayless drives - Cost-effective Intel 3D NAND TLC Flash Memory
- Endurance of up to 5 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 3.0 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. Mixed Use Mainstream) 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 S4620 3.84 TB drive has an endurance of 35.1 PB (35,100 TB) of total bytes written (TBW). This means that for full operation over five years, write workload must be limited to no more than 19,233 GB of writes per day, which is equivalent to 5.0 full drive writes per day (DWPD). For the device to last three years, the drive write workload must be limited to no more than 32,055 GB of writes per day, which is equivalent to 8.3 full drive writes per day.
Technical specifications
The following table presents technical specifications for the S4620 SSDs.
Table 2. Technical specifications
| Feature | 480 GB drive | 960 GB drive | 1.92 TB drive | 3.84 TB drive |
| Interface | 6 Gbps SATA | 6 Gbps SATA | 6 Gbps SATA | 6 Gbps SATA |
| Capacity | 480 GB | 960 GB | 1.92 TB | 3.84 TB |
| SED encryption | None | None | None | None |
| Endurance (drive writes per day) | 4.7 DWPD | 4.0 DWPD | 4.0 DWPD | 5.0 DWPD |
| Endurance (total bytes written) | 4.2 PB | 7.1 PB | 14.0 PB | 35.1 PB |
| Data reliability | < 1 in 1017 bits read | < 1 in 1017 bits read | < 1 in 1017 bits read | < 1 in 1017 bits read |
| MTBF | 2,000,000 hours | 2,000,000 hours | 2,000,000 hours | 2,000,000 hours |
| lOPS reads (4 KB blocks) | 85,000 | 90,000 | 91,000 | 91,000 |
| lOPS writes (4 KB blocks) | 48,000 | 54,000 | 53,000 | 60,000 |
| Sequential read rate (128 KB blocks) | 550 MBps | 550 MBps | 550 MBps | 550 MBps |
| Sequential write rate (128 KB blocks) | 500 MBps | 510 MBps | 510 MBps | 510 MBps |
| Read latency (sequential) | 36 ps | 37 ps | 37 ps | 36 ps |
| Write latency (sequential) | 36 ps | 37 ps | 38 ps | 38 ps |
| Read latency (random) | 103 ps | 103 ps | 104 ps | 104 ps |
| Write latency (random) | 43 ps | 45 ps | 47 ps | 45 ps |
| Shock, operating | 1,000 G (Max) at 0.5 ms | 1,000 G (Max) at 0.5 ms | 1,000 G (Max) at 0.5 ms | 1,000 G (Max) at 0.5 ms |
| Shock, non-operating | 1,000 G (Max) at 0.5 ms | 1,000 G (Max) at 0.5 ms | 1,000 G (Max) at 0.5 ms | 1,000 G (Max) at 0.5 ms |
| Vibration, operating | 2.17 GRMS (5-700 Hz) | 2.17 GRMS (5-700 Hz) | 2.17 GRMS (5-700 Hz) | 2.17 GRMS (5-700 Hz) |
| Vibration, non-operating | 3.13 GRMS (5-800 Hz) | 3.13 GRMS (5-800 Hz) | 3.13 GRMS (5-800 Hz) | 3.13 GRMS (5-800 Hz) |
| Typical power (Active Write Avg) | 3.0 W | 3.0 W | 3.3 W | 3.9 W |
Server support
The following tables list the ThinkSystem servers that are compatible.
Table 3. Server support (Part 1 of 2)
Table 4. Server support (Part 2 of 2)

Operating system support
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 S4620 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 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 S4620 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 S4620 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 S4620 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/datacenter-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
Related product families
Product families related to this document are the following:
- Drives
Notices
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Any references in this publication to non-Lenovo Web sites are provided for convenience only and do not in any manner serve as an endorsement of those Web sites. The materials at those Web sites are not part of the materials for this Lenovo product, and use of those Web sites is at your own risk. Any performance data contained herein was determined in a controlled environment. Therefore, the result obtained in other operating environments may vary significantly. Some measurements may have been made on development-level systems and there is no guarantee that these measurements will be the same on generally available systems. Furthermore, some measurements may have been estimated through extrapolation. Actual results may vary. Users of this document should verify the applicable data for their specific environment.
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This document, LP1504, was created or updated on August 23, 2022.
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ThinkSystem S4620 Mixed Use SATA 6Gb SSDs
References
Welcome | ServerProven
Lenovo RAID Introduction > Lenovo Press
Lenovo RAID Management Tools and Resources (withdrawn product) > Lenovo Press
Storage Options for ThinkSystem Servers > Lenovo Press
Host Bus Adapters > Lenovo Press
RAID Adapters > Lenovo Press
ThinkSystem S4620 Mixed Use SATA 6Gb SSDs Product Guide > Lenovo Press
Drives > Lenovo Press
Intel® Products: Processors, Intel® NUC, Memory and Storage, Chipsets
Intel® SSD D3-S4520 and Intel® SSD D3-S4620 Product Brief
Copyright and Trademark Information | Lenovo US | Lenovo US



















