We use several industry standard profiles configured to emulate the data access patterns utilized by a number of different types of servers. These tests are just as much about the ability of the storage solutions to handle different percentages of read/write ratios at the 8K size as they are about emulating workloads.
This first test emulates Database and On-Line Transaction Processing (OLTP) workloads. OLTP is in essence the processing of transactions such as credit cards used heavily in the financial sector. 15,000 RPM HDDs are well suited for this type of IOPS-heavy workload, outperforming the 10K HDDs easily. Databases are the bread and butter of many enterprise deployments, and their data access patterns are similar to OLTP. These are demanding workloads with 8K random of 66% read and 33% write distribution that can bring even the highest performing solutions down to earth.
The Toshiba peaks at QD64 with an average of 524 IOPS, and a highest recorded speed of 536 IOPS.
This test emulates a typical Email Server with a 50% Read and 50% write distribution of 8K random files. 15K HDDs can provide an enhanced amount of IOPS capability, equating to a higher average CPU utilization of the server, maximizing the efficiency and TCO/ROI of the overall system.
The Toshiba gives a peak speed of 529 IOPS at QD64, and an average of 517 IOPS at QD64.
The File Server profile represents typical workloads encountered in file servers. The inherently random nature of data access in file servers can gain considerable variability in performance from different HDDs, and benefit greatly from caching and tiering solutions. This profile tests across a wide variety of different file sizes simultaneously, with an 80% read and 20% write distribution.
The drive maxes out at an average of 516 IOPS at QD64.
The Web server profile is a read-only test with a wide range of file sizes. Web servers are responsible for generating content for users to view over the internet, much like the very page you are reading here. The speed of the underlying storage system has a massive impact on the speed and responsiveness of the server that is hosting the websites, and thus the end-user experience.
A single Toshiba delivers a top average speed at QD64 of 512MB/s.
The Workstation profile emulates the usage patterns of a storage system on a typical user's workstation. This would be the closest to an actual operating system pattern that a user would experience on their desktop. This test is comprised of 8K random access with an 80% read and 20% write distribution.
The Toshiba generates an average of 560 IOPS at QD128.
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- Page 1 [Introduction]
- Page 2 [Product Positioning]
- Page 3 [Toshiba MK1401GRRB Internals]
- Page 4 [Test System Methodology and Product Specifications]
- Page 5 [Base Product Specifications]
- Page 6 [4K and 8K Random]
- Page 7 [Server Emulations]
- Page 8 [Power Measurements and Thermal Monitoring]
- Page 9 [Final Thoughts]
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