Lenovo ThinkSystem PM1643a Entry 12Gb SAS SSDs User Guide

: June 3, 2024
: Lenovo

Table of Contents

Lenovo ThinkSystem PM1643a Entry 12Gb SAS SSDs
Part number information
Features
Technical specifications
Server support
Operating system support
Warranty
Physical specifications
Operating environment
References
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Lenovo ThinkSystem PM1643a Entry 12Gb SAS SSDs

Lenovo-ThinkSystem-PM1643a-Entry-12Gb-SAS-SSDs-PRODUCT

The ThinkSystem PM1643a Entry SAS 12Gb solid-state drives (SSDs) are next- generation SSDs suitable for a wide range of applications. The PM1643a SAS SSDs are designed for dense storage and with a 12 Gb SAS interface, these drives feature all the capacity and performance that is needed to replace large numbers of 15K rpm and 10K rpm spinning disks, and consolidate storage into tightly packed server configurations.

The PM1643a SSDs are the follow-on to the PM1643 SSDs and offer improved random write performance

Did you know?
Unlike SATA drives, the 12 Gb/s SAS interface on PM1643a drives supports full duplex data transfer for higher performance, as well as enterprise-level error recovery for better availability.
Rigorous testing of PM1643a Entry SATA 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 part numbers and feature codes for ThinkSystem servers. Lenovo-ThinkSystem-PM1643a-Entry-12Gb-SAS-SSDs-
FIG-1
Table 1. Ordering part numbers and feature codes – ThinkSystem

Features

The ThinkSystem PM1643a Entry SAS SSDs have the following features:

Enterprise-grade SSD suitable for read-intensive workloads
Based on Samsung 64-layer V-NAND technology and TLC flash memory
Endurance of 1 drive-write per day (DWPD) over 5 years
2.5-inch or 3.5-inch industry standard form factor with hot-swap tray
SAS 12 Gbps interface
Single port host interface
Protect data integrity from unexpected power loss with Samsung’s advanced power-loss protection architecture
Supports Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T)
End-to-end data protection
Support 16 Initiator with Tag Command Queuing (TCQ) Command Set with a queue-depth of up to 128 commands
Compliant with SCSI Specification (SAS-3 / SPL-3 / SBC-4 / SPC-4 / SAM-5)
RoHS Compliant

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. Entry SSDs typically have a better cost per read IOPS ratio but lower endurance and performance compared to Mainstream or Performance SSDs.

SD 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.

Technical specifications

The following tables present technical specifications for the PM1643a Entry SSDs Lenovo-ThinkSystem-PM1643a-Entry-12Gb-SAS-SSDs-
FIG-2 .
Table 2. Technical specifications

ThinkSystem PM1643a Entry 12Gb SAS SSDs

Server support

The following tables list the ThinkSystem servers that are compatible . Lenovo-ThinkSystem-PM1643a-Entry-12Gb-SAS-SSDs-FIG-4
Table 3. Server support (Part 1 of 2)

ThinkSystem PM1643a Entry 12Gb SAS SSDs

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 PM1643a Entry SAS 12Gb SSDs carry a one-year, customer-replaceable unit (CRU) limited warranty. When the SSDs are installed in a supported server, these drives assume the server’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 PM1643a Entry SAS 12Gb SSDs have the following physical specifications: Dimensions and weight (approximate, without the hot-swap tray, if applicable):

Height: 15 mm (0.6 in.)
Width: 70 mm (2.8 in.)
Depth: 100 mm (4.0 in.)
Weight: 158 g (5.6 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.)

Shipping dimensions and weight for the 3.5-inch drives (approximate):

Height: 95 mm (3.7 in.)
Width: 194 mm (7.6 in.)
Depth: 257 mm (10.0 in.)

Operating environment

The PM1643a Entry SAS 12Gb SSDs are supported in the following environment:

Temperature, operating : 0 – 70 °C (32 – 158 °F)
Temperature, non-operating: -40 to 85 °C (-40 – 185 °F)
Relative humidity: 5 – 95% (noncondensing)
Maximum altitude: -300 – 4,572 m (-1,000 to 15,000 feet)

Agency approvals
The PM1643a Entry SAS 12Gb SSDs conform to the following regulations:

UL
TUV
FCC
IC
CB
CE Mark
C-Tick Mark
BSMI (Taiwan)
KCC (Korea EMI)
VCCI
Related

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

Lenovo Press product guides and papers on RAID adapters and HBAs
https://lenovopress.com/servers/options/raid
Lenovo RAID Management Tools and Resources
https://lenovopress.com/lp0579-lenovo-raid-management-tools-and-resources
Lenovo RAID Introduction
https://lenovopress.com/lp0578-lenovo-raid-introduction
Samsung Enterprise SSDs home page
https://www.samsung.com/semiconductor/ssd/enterprise-ssd/

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.
ADDRESS: 8001 Development Drive Morrisville, NC 27560

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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 disclaimer 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 the applicable data for their specific environment. © Copyright Lenovo 2022. All rights reserved. This document, LP1257, was created or updated on June 13, 2021. Send us your comments in one of the following ways:

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