Lenovo ThinkSystem PM893 Read Intensive SATA 6Gb SSDs User Guide

: June 3, 2024
: Lenovo

Table of Contents

Lenovo ThinkSystem PM893 Read Intensive SATA 6Gb SSDs
INTRODUCTION
Part number information
Features
Technical specifications
Server support
Warranty
Physical specifications
Agency approvals
References
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Lenovo ThinkSystem PM893 Read Intensive SATA 6Gb SSDs

Lenovo-ThinkSystem-PM893-Read-Intensive-SATA-6Gb-SSDs-
PRODUCT

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.

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, hyper scale cloud, content delivery, caching, databases, and analytics.

Part number information

The following table lists the part numbers and feature codes.
Table 1. Ordering part numbers and feature codes

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

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). ReadIntensive 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 the 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.

Table 2

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 (total bytes written)| 876 TB| 1752 TB| 3504 TB| 7008 TB| 14,016 TB
Endurance (drive writes per day for 5 years)| 1 DWPD| 1 DWPD| 1 DWPD| 1 DWPD| 1 DWPD
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

Table 3

Part Number

|

Description

|

Edge

| 1S Intel V2| 2S Intel V2|

AMD

|

Dense V2

| 4S V2|

8S

---|---|---|---|---|---|---|---|---
SE350 (7Z46 / 7D1X)| SE450 (7D8T)| ST50 V2 (7D8K / 7D8J)| ST250 V2 (7D8G / 7D8F)| SR250 V2 (7D7R / 7D7Q)| ST650 V2 (7Z75 / 7Z74)| SR630 V2 (7Z70 / 7Z71)| SR650 V2 (7Z72 / 7Z73)| SR670 V2 (7Z22 / 7Z23)| SR635 (7Y98 / 7Y99)| SR655 (7Y00 / 7Z01)| 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)
4XB7A72438| ThinkSystem 2.5″ PM893 480GB Read Intensive SATA 6Gb HS SSD| N| N| N| N| N| Y| Y| Y| Y| Y| Y| Y| Y| N| N| N| Y| Y| Y| Y
4XB7A72439| ThinkSystem 2.5″ PM893 960GB Read Intensive SATA 6Gb HS SSD| N| N| N| N| N| Y| Y| Y| Y| Y| Y| Y| Y| N| N| N| Y| Y| Y| Y
4XB7A72440| ThinkSystem 2.5″ PM893 1.92TB Read Intensive SATA 6Gb HS SSD| N| N| N| N| N| Y| Y| Y| Y| Y| Y| Y| Y| N| N| N| Y| Y| Y| Y
4XB7A72441| ThinkSystem 2.5″ PM893 3.84TB Read Intensive SATA 6Gb HS SSD| N| N| N| N| N| Y| Y| Y| Y| Y| Y| Y| Y| N| N| N| Y| Y| Y| Y
4XB7A72442| ThinkSystem 2.5″ PM893 7.68TB Read Intensive SATA 6Gb HS SSD| N| N| N| N| N| Y| Y| Y| Y| Y| Y| Y| Y| N| N| N| Y| Y| Y| Y

Table 4

Part Number

|

Description

| 1S Intel V1| 2S Intel V1| Dense V1| 4S V1
---|---|---|---|---|---
ST50 (7Y48 / 7Y50)| ST250 (7Y45 / 7Y46)| SR150 (7Y54)| SR250 (7Y52 / 7Y51)| 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)| SR850 (7X18 / 7X19)| SR850P (7D2F / 2D2G)| SR860 (7X69 / 7X70)
4XB7A72438| ThinkSystem 2.5″ PM893 480GB Read Intensive SATA 6Gb HS SSD| N| Y| N| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| N| Y| Y| Y| Y| Y
4XB7A72439| ThinkSystem 2.5″ PM893 960GB Read Intensive SATA 6Gb HS SSD| N| Y| N| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| N| Y| Y| Y| Y| Y
4XB7A72440| ThinkSystem 2.5″ PM893 1.92TB Read Intensive SATA 6Gb HS SSD| N| Y| N| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| N| Y| Y| Y| Y| Y
4XB7A72441| ThinkSystem 2.5″ PM893 3.84TB Read Intensive SATA 6Gb HS SSD| N| Y| N| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| N| Y| Y| Y| Y| Y
4XB7A72442| ThinkSystem 2.5″ PM893 7.68TB Read Intensive SATA 6Gb HS SSD| N| Y| N| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| N| Y| Y| Y| Y| Y

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 propduct 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)

Related publications and links
For more information, see the following documents:

Samsung Data Center SSDs product page:
https://www.samsung.com/semiconductor/ssd/datacenter-ssd/
Lenovo ThinkSystem storage options product web page
https://lenovopress.com/lp0761-storage-options-for-thinksystem-servers
Lenovo ThinkSystem SSD Portfolio comparison:
https://lenovopress.com/lp1261-lenovo-thinksystem-ssd-portfolio
Lenovo server options product page
https://www.lenovo.com/us/en/data-center/options/
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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