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Abstract
The ThinkSystem PM893 Read Intensive SATA SSDs are general-purpose SSDs based on the Samsung PM893 platform and are available in capacities ranging from 480GB to 7.86TB. They are engineered for greater performance and endurance in a cost-effective design, and to support a broader set of workloads.
This product guide provides essential presales information to understand the PM893 SSDs and their key features, specifications, and compatibility. This guide is intended for technical specialists, sales specialists, sales engineers, IT architects, and other IT professionals who want to learn more about the SSDs and consider their use in IT solutions.
Withdrawn: All drives listed in this product guide are now withdrawn from marketing.
Change History
Changes in the May 30, 2024 update:
- All drives are now withdrawn from marketing.
Introduction
The ThinkSystem PM893 Read Intensive SATA SSDs are general-purpose SSDs based on the Samsung PM893 platform and are available in capacities ranging from 480GB to 7.86TB. They are engineered for greater performance and endurance in a cost-effective design, and to support a broader set of workloads.
Figure 1. Lenovo ThinkSystem 2.5" PM893 Read Intensive SATA 6Gb Hot Swap SSD
Did you know?
Lenovo Read Intensive SSDs are suitable for read-intensive and general-purpose data center workloads. Overall, these SSDs provide outstanding IOPS/watt and cost/IOPS for enterprise solutions and are an excellent choice for applications such as web serving, hyperscale cloud, content delivery, caching, databases, and analytics.
Part number information
The following table lists the part numbers and feature codes.
Withdrawn: All drives listed below are now withdrawn from marketing.
| Part number | Feature code | Description |
|---|---|---|
| 2.5-inch hot-swap drives for ThinkSystem | ||
| 4XB7A72438 | BM8B | ThinkSystem 2.5" PM893 480GB Read Intensive SATA 6Gb HS SSD |
| 4XB7A72439 | BM8A | ThinkSystem 2.5" PM893 960GB Read Intensive SATA 6Gb HS SSD |
| 4XB7A72440 | BM89 | ThinkSystem 2.5" PM893 1.92TB Read Intensive SATA 6Gb HS SSD |
| 4XB7A72441 | BM88 | ThinkSystem 2.5" PM893 3.84TB Read Intensive SATA 6Gb HS SSD |
| 4XB7A72442 | BM87 | ThinkSystem 2.5" PM893 7.68TB Read Intensive SATA 6Gb HS SSD |
| 3.5-inch hot-swap drives for ThinkSystem | ||
| 4XB7A87461 | BUT1 | ThinkSystem 3.5" PM893 3.84TB Read Intensive SATA 6Gb HS SSD |
The part numbers include the following items:
- One 2.5-inch solid-state drive in a ThinkSystem hot-swap tray
- Documentation flyer
Features
The PM893 SSDs have the following features:
- Low cost, read-intensive SSD from Samsung
- 2.5-inch industry standard form factor with hot-swap tray
- 6 Gbps SATA interface
- Advanced ECC Engine and End-to-End Data Protection
- Samsung V6 (128-layer) TLC V-NAND stacks the vertical NAND layers in three dimensions, solving the cell-to-cell interference that causes data corruption in planar NAND.
- Protect data integrity from unexpected power loss with Samsung's advanced power-loss protection (PLP) architecture
- Supports Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T).
-
Dynamic Thermal Guard Protection protects the SSD from overheating by automatically controlling the speed of the CPU relative to its core temperature
Read-Intensive (Entry) SSDs and Write-Intensive (Performance) SSDs have similar read and write IOPS performance, but the key difference between them is their endurance (or lifetime) (that is, how long they can perform write operations because SSDs have a finite number of program/erase (P/E) cycles). Read-Intensive SSDs have a better cost/IOPS ratio but lower endurance compared to Write-Intensive SSDs. SSD write endurance is typically measured by the number of program/erase (P/E) cycles that the drive incurs over its lifetime, listed as the total bytes of written data (TBW) in the device specification.
The TBW value assigned to a solid-state device is the total bytes of written data (based on the number of P/E cycles) that a drive can be guaranteed to complete (% of remaining P/E cycles = % of remaining TBW). Reaching this limit does not cause the drive to immediately fail. It simply denotes the maximum number of writes that can be guaranteed. A solid-state device will not fail upon reaching the specified TBW. At some point based on manufacturing variance margin, after surpassing the TBW value, the drive will reach the end-of-life point, at which the drive will go into a read-only mode.
Because of such behavior by Read-Intensive solid-state drives, careful planning must be done to use them only in read-intensive or mix-use up to 70% read/30% write environments to ensure that the TBW of the drive will not be exceeded before the required life expectancy.
For example, the 3.84TB PM893 drive has an endurance of 7,008 TB of total bytes written (TBW). This means that for full operation over five years, write workload must be limited to no more than 3,840 GB of writes per day, which is equivalent to 1.0 full drive writes per day (DWPD). For the device to last three years, the drive write workload must be limited to no more than 6,400 GB of writes per day, which is equivalent to 1.7 full drive writes per day.
Technical specifications
The following table lists the technical specifications of the PM893 SSDs.
| Feature | 480 GB drive | 960 GB drive | 1.92 TB drive | 3.84 TB drive | 7.68 TB drive |
|---|---|---|---|---|---|
| Interface | 6 Gbps SATA | 6 Gbps SATA | 6 Gbps SATA | 6 Gbps SATA | 6 Gbps SATA |
| Capacity | 480 GB | 960 GB | 1.92 TB | 3.84 TB | 7.68 TB |
| SED encyption | None | None | None | None | None |
| Endurance (drive writes per day for 5 years) | 1 DWPD | 1 DWPD | 1 DWPD | 1 DWPD | 1 DWPD |
| Endurance (total bytes written) | 876 TB | 1752 TB | 3504 TB | 7008 TB | 14,016 TB |
| Data reliability (UBER) | < 1 in 1017 bits read | < 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 | 2,000,000 hours |
| IOPS reads (4 KB blocks) | 98,000 | 98,000 | 98,000 | 98,000 | 98,000 |
| IOPS writes (4 KB blocks) | 29,000 | 31,000 | 31,000 | 31,000 | 31,000 |
| Sequential read rate (128 KB blocks) | 560 MBps | 560 MBps | 560 MBps | 560 MBps | 560 MBps |
| Sequential write rate (128 KB blocks) | 530 MBps | 530 MBps | 530 MBps | 530 MBps | 530 MBps |
| Read latency (random) | 120 µs | 120 µs | 120 µs | 120 µs | 120 µs |
| Write latency (random) | 40 µs | 40 µs | 40 µs | 40 µs | 40 µs |
| Shock, non-operating | 1,500 G (Max) at 0.5 ms | 1,500 G (Max) at 0.5 ms | 1,500 G (Max) at 0.5 ms | 1,500 G (Max) at 0.5 ms | 1,500 G (Max) at 0.5 ms |
| Vibration, non-operating | 20 G (20-2000 Hz) | 20 G (20-2000 Hz) | 20 G (20-2000 Hz) | 20 G (20-2000 Hz) | 20 G (20-2000 Hz) |
| Typical power (R/W) | 2.1 W / 3.2 W | 2.2 W / 3.2 W | 2.2 W / 3.2 W | 2.2 W / 3.2 W | 2.2 W / 3.2 W |
Server support
The following tables list the ThinkSystem servers that are compatible.
| Part Number | Description | AMD V3 | 2S Intel V3/V4 | 4S 8S Intel V3 | Multi Node V3/V4 | GPU Rich | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SR635 V3 (7D9H / 7D9G) |
SR655 V3 (7D9F / 7D9E) |
SR645 V3 (7D9D / 7D9C) |
SR665 V3 (7D9B / 7D9A) |
ST650 V3 (7D7B / 7D7A) |
SR630 V3 (7D72 / 7D73) |
SR650 V3 (7D75 / 7D76) |
SR630 V4 (7DG8 / 7DG9) |
SR850 V3 (7D97 / 7D96) |
SR860 V3 (7D94 / 7D93) |
SR950 V3 (7DC5 / 7DC4) |
SD535 V3 (7DD8 / 7DD1) |
SD530 V3 (7DDA / 7DD3) |
SD550 V3 (7DD9 / 7DD2) |
SD520 V4 (7DFZ / 7DFY) |
SR670 V2 (7Z22 / 7Z23) |
SR675 V3 (7D9Q / 7D9R) |
SR680a V3 (7DHE) |
SR685a V3 (7DHC) |
SR780a V3 (7DJ5) |
||
| 2.5-inch hot-swap drives for ThinkSystem | |||||||||||||||||||||
| 4XB7A72438 | ThinkSystem 2.5" PM893 480GB Read Intensive SATA 6Gb HS SSD | Y | Y | Y | Y | N | Y | Y | N | N | N | N | N | N | N | N | Y | Y | N | N | N |
| 4XB7A72439 | ThinkSystem 2.5" PM893 960GB Read Intensive SATA 6Gb HS SSD | Y | Y | Y | Y | N | Y | Y | N | N | N | N | N | N | N | N | Y | Y | N | N | N |
| 4XB7A72440 | ThinkSystem 2.5" PM893 1.92TB Read Intensive SATA 6Gb HS SSD | Y | Y | Y | Y | N | Y | Y | N | N | N | N | N | N | N | N | Y | Y | N | N | N |
| 4XB7A72441 | ThinkSystem 2.5" PM893 3.84TB Read Intensive SATA 6Gb HS SSD | Y | Y | Y | Y | N | Y | Y | N | N | N | N | N | N | N | N | Y | Y | N | N | N |
| 4XB7A72442 | ThinkSystem 2.5" PM893 7.68TB Read Intensive SATA 6Gb HS SSD | Y | Y | Y | Y | N | Y | Y | N | N | N | N | N | N | N | N | Y | Y | N | N | N |
| 3.5-inch hot-swap drives for ThinkSystem | |||||||||||||||||||||
| 4XB7A87461 | ThinkSystem 3.5" PM893 3.84TB Read Intensive SATA 6Gb HS SSD | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N |
| Part Number | Description | 1S V3 | Edge | Super Computing | 1S Intel V2 | 2S Intel V2 | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ST50 V3 (7DF4 / 7DF3) |
ST250 V3 (7DCF / 7DCE) |
SR250 V3 (7DCM / 7DCL) |
SE350 (7Z46 / 7D1X) |
SE350 V2 (7DA9) |
SE360 V2 (7DAM) |
SE450 (7D8T) |
SE455 V3 (7DBY) |
SC750 V4 (7DDJ) |
SD665 V3 (7D9P) |
SD665-N V3 (7DAZ) |
SD650 V3 (7D7M) |
SD650-I V3 (7D7L) |
SD650-N V3 (7D7N) |
ST50 V2 (7D8K / 7D8J) |
ST250 V2 (7D8G / 7D8F) |
SR250 V2 (7D7R / 7D7Q) |
ST650 V2 (7Z75 / 7Z74) |
SR630 V2 (7Z70 / 7Z71) |
SR650 V2 (7Z72 / 7Z73) |
||
| 2.5-inch hot-swap drives for ThinkSystem | |||||||||||||||||||||
| 4XB7A72438 | ThinkSystem 2.5" PM893 480GB Read Intensive SATA 6Gb HS SSD | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | Y | N | Y |
| 4XB7A72439 | ThinkSystem 2.5" PM893 960GB Read Intensive SATA 6Gb HS SSD | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | Y | Y | Y |
| 4XB7A72440 | ThinkSystem 2.5" PM893 1.92TB Read Intensive SATA 6Gb HS SSD | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | Y | Y | Y |
| 4XB7A72441 | ThinkSystem 2.5" PM893 3.84TB Read Intensive SATA 6Gb HS SSD | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | Y | Y | Y |
| 4XB7A72442 | ThinkSystem 2.5" PM893 7.68TB Read Intensive SATA 6Gb HS SSD | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | Y | Y | Y |
| 3.5-inch hot-swap drives for ThinkSystem | |||||||||||||||||||||
| 4XB7A87461 | ThinkSystem 3.5" PM893 3.84TB Read Intensive SATA 6Gb HS SSD | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | Y | Y |
| Part Number | Description | AMD V1 | Dense V2 | 4S V2 | 8S | 4S V1 | 1S Intel V1 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SR635 (7Y98 / 7Y99) |
SR655 (7Y00 / 7Z01) |
SR655 Client OS |
SR645 (7D2Y / 7D2X) |
SR665 (7D2W / 7D2V) |
SD630 V2 (7D1K) |
SD650 V2 (7D1M) |
SD650-N V2 (7D1N) |
SN550 V2 (7Z69) |
SR850 V2 (7D31 / 7D32) |
SR860 V2 (7Z59 / 7Z60) |
SR950 (7X11 / 7X12) |
SR850 (7X18 / 7X19) |
SR850P (7D2F / 2D2G) |
SR860 (7X69 / 7X70) |
ST50 (7Y48 / 7Y50) |
ST250 (7Y45 / 7Y46) |
SR150 (7Y54) |
SR250 (7Y52 / 7Y51) |
||
| 2.5-inch hot-swap drives for ThinkSystem | ||||||||||||||||||||
| 4XB7A72438 | ThinkSystem 2.5" PM893 480GB Read Intensive SATA 6Gb HS SSD | Y | Y | Y | N | Y | N | N | N | Y | Y | Y | Y | Y | Y | Y | N | Y | N | Y |
| 4XB7A72439 | ThinkSystem 2.5" PM893 960GB Read Intensive SATA 6Gb HS SSD | Y | Y | Y | Y | Y | N | N | N | Y | Y | Y | Y | Y | Y | Y | N | Y | N | Y |
| 4XB7A72440 | ThinkSystem 2.5" PM893 1.92TB Read Intensive SATA 6Gb HS SSD | Y | Y | Y | Y | Y | N | N | N | Y | Y | Y | Y | Y | Y | Y | N | Y | N | Y |
| 4XB7A72441 | ThinkSystem 2.5" PM893 3.84TB Read Intensive SATA 6Gb HS SSD | Y | Y | Y | Y | Y | N | N | N | Y | Y | Y | Y | Y | Y | Y | N | Y | N | Y |
| 4XB7A72442 | ThinkSystem 2.5" PM893 7.68TB Read Intensive SATA 6Gb HS SSD | Y | Y | Y | Y | Y | N | N | N | Y | Y | Y | Y | Y | Y | Y | N | Y | N | Y |
| 3.5-inch hot-swap drives for ThinkSystem | ||||||||||||||||||||
| 4XB7A87461 | ThinkSystem 3.5" PM893 3.84TB Read Intensive SATA 6Gb HS SSD | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N |
| Part Number | Description | 2S Intel V1 | Dense V1 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ST550 (7X09 / 7X10) |
SR530 (7X07 / 7X08) |
SR550 (7X03 / 7X04) |
SR570 (7Y02 / 7Y03) |
SR590 (7X98 / 7X99) |
SR630 (7X01 / 7X02) |
SR650 (7X05 / 7X06) |
SR670 (7Y36 / 7Y37) |
SD530 (7X21) |
SD650 (7X58) |
SN550 (7X16) |
SN850 (7X15) |
||
| 2.5-inch hot-swap drives for ThinkSystem | |||||||||||||
| 4XB7A72438 | ThinkSystem 2.5" PM893 480GB Read Intensive SATA 6Gb HS SSD | Y | Y | Y | Y | Y | Y | Y | Y | Y | N | Y | Y |
| 4XB7A72439 | ThinkSystem 2.5" PM893 960GB Read Intensive SATA 6Gb HS SSD | Y | Y | Y | Y | Y | Y | Y | Y | Y | N | Y | Y |
| 4XB7A72440 | ThinkSystem 2.5" PM893 1.92TB Read Intensive SATA 6Gb HS SSD | Y | Y | Y | Y | Y | Y | Y | Y | Y | N | Y | Y |
| 4XB7A72441 | ThinkSystem 2.5" PM893 3.84TB Read Intensive SATA 6Gb HS SSD | Y | Y | Y | Y | Y | Y | Y | Y | Y | N | Y | Y |
| 4XB7A72442 | ThinkSystem 2.5" PM893 7.68TB Read Intensive SATA 6Gb HS SSD | Y | Y | Y | Y | Y | Y | Y | Y | Y | N | Y | Y |
| 3.5-inch hot-swap drives for ThinkSystem | |||||||||||||
| 4XB7A87461 | ThinkSystem 3.5" PM893 3.84TB Read Intensive SATA 6Gb HS SSD | N | N | N | N | N | N | N | N | N | N | N | N |
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 ThinkSystem PM893 Read Intensive SATA SSDs carry a one-year, customer-replaceable unit (CRU) limited warranty. When the SSDs are installed in a supported server, these drives assume the system’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 PM893 SSDs have the following physical specifications:
Dimensions and weight (approximate, without the hot-swap tray):
- Height: 7 mm (0.3 in.)
- Width: 70 mm (2.8 in.)
- Depth: 100 mm (4.0 in.)
- Weight: 58 g (2.1 oz)
Shipping dimensions and weight for the 2.5-inch drives (approximate):
- Height: 63 mm (2.5 in.)
- Width: 133 mm (5.2 in.)
- Depth: 174 mm (6.9 in.)
- Weight (hot-swap): 433 g (1.0 lb)
Operating environment
The PM893 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 PM893 SSDs conform to the following regulations:
- UL
- TUV
- FCC
- CE Mark
- C-Tick Mark
- BSMI (Taiwan)
- KCC (Korea EMI)
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®
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.
