Lenovo Thinksystem Pm893 Read Intensive Sata 6gb Ssds User Guide

Lenovo ThinkSystem PM893 Read Intensive SATA 6Gb SSDs

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

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

Server support

The following tables list the ThinkSystem servers that are compatible

Table 3

Table 4

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
Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult your local Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead. However, it is the user’s responsibility to evaluate and verify the operation of any other product, program, or service. Lenovo may have patents or pending patent applications covering subject matter described in this document. The furnishing of this document does not give you any license to these patents. You can send license inquiries, in writing, to:
Lenovo (United States), Inc.
8001 Development Drive
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U.S.A.
Attention: Lenovo Director of Licensing LENOVO PROVIDES THIS PUBLICATION ”AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow disclaimers of express or implied warranties in certain transactions, therefore, this statement may not apply to you. This information could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. Lenovo may make improvements and/or changes in the product(s) and/or the program(s) described in this publication at any time without notice.
The products described in this document are not intended for use in implantation or other life support applications where malfunction may result in injury or death to persons. The information contained in this document does not affect or change Lenovo product specifications or warranties. Nothing in this document shall operate as an express or implied license or indemnity under the intellectual property rights of Lenovo or third parties. All information contained in this document was obtained in specific environments and is presented as an illustration. The result obtained in other operating environments may vary. Lenovo may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you. 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 theapplicable data for their specific environment.

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This document, LP1542, was created or updated on January 17, 2022.
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References

• Lenovo RAID Introduction > Lenovo Press
• Lenovo RAID Management Tools and Resources (withdrawn product) > Lenovo Press
• Storage Options for ThinkSystem Servers > Lenovo Press
• Lenovo ThinkSystem SSD Portfolio > Lenovo Press
• Host Bus Adapters > Lenovo Press
• RAID Adapters > Lenovo Press
• ThinkSystem PM893 Read Intensive SATA 6Gb SSDs Product Guide > Lenovo Press
• Drives > Lenovo Press
• Lenovo server options, accessories and upgrades | Lenovo US
• Copyright and Trademark Information | Lenovo US | Lenovo US
• Data center SSD | SATA SSD | Samsung Semiconductor Global