Jul 18, 2011
The Pulsar XT.2 SSD combines Single-Level Cell (SLC) flash with a native 6Gb/s Serial Attached SCSI (SAS) interface to make it the fastest drive in the Seagate portfolio. The 2.5 inch SSD with up to 400GB of capacity is optimised for complex mixed workloads typical of enterprise environments such as online transaction processing (OLTP), database or web indexing and email.
Seagate Pulsar XT.2 solid state drive, delivering consistent performance with the data integrity and drive endurance needed for the most demanding enterprise environments
The Pulsar.2 SSD has been designed specifically for data centres, unlike typical MLC SSDs built for consumer applications, which lack the robust data integrity and reliability required for enterprise applications. The drive, featuring up to 800GB of capacity, automatically detects and corrects any number of data errors that could otherwise plague normal drive operations, delivering the price/performance, data integrity and endurance needed for performance-hungry enterprise applications. The Pulsar.2 SSD supports both native 6Gb/s SAS and Serial ATA (SATA) 6Gb/s interfaces for primary and secondary server storage.
“Most SSD suppliers are not fully aware of the needs of the enterprise,” said Jim Handy from Objective Analysis. “It is not just a fast interface such as SAS, Fibre Channel or PCIe that they need, and it is not just IOPS levels in the tens to hundreds of thousands. Without data integrity and reliability, an SSD is worthless to most enterprise users. Seagate’s undeniable leadership in the enterprise HDD market has given the Company a deep understanding of the necessity of data integrity and endurance.”
Pulsar® XT.2 Performance Validated by Industry-Standard SPC-1C Result
The Pulsar XT.2 400GB SSD has met the rigorous standards of the Storage Performance Council (SPC), a vendor-neutral consortium that defines, administers and promotes industry-standard storage benchmarks, for consistent and sustainable enterprise-class performance. The new SPC-1C Result demonstrated that the Pulsar XT.2 SSD delivers the sustainable storage device performance enterprises need round the clock, regardless of the workload complexity or changing server input-output (I/O) intensity levels.
Fluctuating workloads, background media management and program/erase functions can lead to erratic SSD performance, compromising a data centre’s ability to meet stringent service-level agreements. These concerns can be alleviated by SSDs that hold up under exacting performance tests requiring the devices to sustain maximum I/Os for extended periods.
In a single storage device configuration, the Seagate Pulsar XT.2 SSD produced an SPC-1C Result* of 20,008.82 SPC-1 IOPS with an average response time of 2.05 milliseconds over a 10 minute duration, compared to an SPC-1C Sustainability Test result of 20,011.07 IOPS with an average response time of 2.08 milliseconds over four hours, demonstrating outstanding and consistent enterprise-class performance over time.
The real-world SPC-1C benchmark, designed for storage components, consists of I/O patterns typically found in online transaction processing (OLTP) applications, with a focus on random accesses. Unlike Iometer testing, which gauges IOPS performance using discrete measurements of random reads, random writes, sequential reads or sequential writes, SPC-1C benchmarks test storage components using a dynamic blend of random and sequential reads and writes to emulate real-world enterprise workloads. Storage professionals worldwide view the SPC as the definitive source for independent and verifiable comparisons of real-world application performance.
As part of the SPC-1C Result, the Pulsar XT.2 SSD also met the new SPC-1C requirement for data pre-filling. Pre-filling reduces any potential performance gains that storage component vendors may acquire by de-stroking a device, or limiting access to certain portions of the storage space to increase performance artificially. Pre-filling writes random data to the drive's entire addressable space.
* Details of the Seagate Pulsar XT.2 SSD SPC-1C Result can be found at:
About the SPC
The SPC is a nonprofit organisation founded to define, standardise and promote storage product benchmarks, and to disseminate objective verifiable performance data to the computer industry and its customers. For a complete list of SPC results, visit the SPC website at http://www.storageperformance.org/results.
About Objective Analysis
Objective Analysis (www.Objective-Analysis.com) offers third-party independent market research and data for technology industries and investors in those industries.
Seagate is the worldwide leader in hard disc drives and storage solutions. Learn more at http://www.seagate.com .
Copyright 2011 Seagate Technology LLC. All rights reserved. Printed in USA. Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Pulsar and Pulsar.2 are either trademarks or registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States and/or other countries. SPC, SPC-1C, SPC-1C IOPS and SPC-1C Result are trademarks of the Storage Performance Council. When referring to drive capacity, one gigabyte, or GB, equals one billion bytes; and one terabyte, or TB, equals one trillion bytes. Your computer operating system may use a different standard of measurement and report a lower capacity. In addition, some of the listed capacity is used for formatting and other functions, and thus will not be available for data storage. Seagate reserves the right to change, without notice, product offerings or specifications. Actual data rates and performance results may vary depending on operating environment and other factors.