Mainstream Server SSD Suitable for Mixed Read-write-intensive Workloads

Abstract

The Lenovo PM1635 Enterprise Mainstream 12Gb SAS solid-state drives (SSDs) in capacities of 400 GB, 800 GB and 1.6 TB capacity are next-generation high-performance SSDs suitable for a wide range of applications running on both System x and ThinkServer platforms. 

This product guide provides essential presales information to understand the Enterprise Mainstream 12Gb SAS SSD offerings 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.

Introduction

The Lenovo PM1635 Enterprise Mainstream 12Gb SAS solid-state drives (SSDs) in capacities of 400 GB, 800 GB and 1.6 TB capacity are next-generation high-performance SSDs suitable for a wide range of applications of running on both System x and ThinkServer platforms.

Did you know?

Unlike SATA drives, the 12 Gb/s SAS interface on these drives supports full duplex data transfer for higher performance, as well as dual port connectivity and enterprise-level error recovery for better availability. By combining the enhanced reliability of Samsung NAND flash memory silicon with NAND Flash management technologies, PM1635 SSDs deliver the extended endurance of up to 3 drive writes per day (DWPD) for 5 years, which is suitable for many enterprise applications.

Manufacturer Part Number
4XB0K12258
Full Product Specifications

Note:

  • The full product specifications below are from the manufacturer and may contain information related to other package quantities that will not apply to the product that you are reviewing. Please confirm the actual content and/or package quantity from the main product specifications page.
  • These specifications may represent the entire product series/model/line to which this product belongs with specific configuration differences between the individual products stated.
  • These specifications may have been copied from the same product in other region/country in which case there might be minor differences in region-specific data such as Input Voltage, Terms of Warranty etc.

Feature: 400 GB drive
System x part numbers: 00YC460
ThinkServer part numbers:
4XB0K12258
4XB0K12261
Interface: 12 Gbps SAS
Capacity: 400 GB
Endurance
(drive writes per day for 5 years): 3 DWPD
Endurance
(total bytes written): 2,190 TB
Data reliability
(UBER): < 1 in 1017 bits read
MTBF: 2,000,000 hours
IOPS reads (4 KB blocks): 190,000
IOPS writes (4 KB blocks): 50,000
Sequential read rate
(128 KB blocks): 950 MBps
Sequential write rate
(128 KB blocks): 530 MBps
Read latency (ran): 106 µs
Write latency (ran): 52 µs
Shock, non-operating: 1,500 G (Max) at 0.5 ms
Vibration, non-operating: 20 GRMS (10-2000 Hz)
Typical power (R / W): 9 W / 9 W