The Seagate Enterprise Performance 15K HDD v4 brings an increase in capacity to the 2.5" 15K HDD segment. The 15K v4 offers capacities of 600GB, 450GB, and 300GB in the 2.5" form factor. Along with the bump in capacity, Seagate offers 228 MB/s in sequential performance, a 24% increase in the SDR (Sustained Data Rate) over competitive offerings. The 15K v4 also brings a 3% increase in random read performance, and a 4% jump in random write performance.
The increased speed of 15K HDDs makes them attractive for addressing Tier-1 application performance requirements. The 2.5" form factor works well for blade, rack, and tower servers hosting transaction-based applications, and addresses increasing demands for more performance and capacity in a smaller space. The 15K v4 offers many of the inherent advantages of the 2.5" form factor, such as lower power consumption and higher performance, in comparison to the 3.5" 15K HDDs.
One of the newest additions to the Seagate 15K line is the arrival of Turbo SSHD models. These hybrid models provide seamless workload acceleration without any user configuration or management. We recently took an in-depth look at the Seagate Turbo SSHD, and the inclusion of a 32GB layer of eMLC NAND cache delivers incredible performance benefits. The option to choose a standard 15K HDD, or a 15K SSHD with built-in caching, provides users the flexibility to tailor their deployments to application requirements.
The dual-port 6Gb/s connection offers high-availability features, such as multipath and failover, to the performance segment. The UBER rating of one per 10^16 is standard for this class of drive, but the 15K v4 differentiates itself with a robust two million hour MTBF. The drive also uses a larger 128MB multi-segmented cache to help boost performance.
There is an incremental increase in power consumption from the previous generation, but the doubling of capacity easily outweighs the small increase. The 15K v4 makes an impressive leap in watts-per-GB by doubling capacity at the cost of an additional .6 watts. The Enterprise Performance 15K v4 also touts an impressive 70% reduction in power in comparison to 3.5" 15K products. Power consumption equals heat, and Seagate dynamically reduces power consumption during operation with proprietary PowerTrim technology.
Performance-based deployments often require robust storage security features to meet data security and compliance initiatives. The 15K v4 covers the bases with SED, FIPS 140-2, and ISE versions. These versions protect data on the drive, and ease costs during the drive retirement, or repurposing process. The Enterprise Performance 15K HDD v4 also offers broad compatibility with 512N, 512E, and 4k format options available.
The 15K v4 line also offers thermal monitoring, a humidity sensor, and support for SAS-based Protection Information. Seagate has also focused on the Unified Storage Architecture, which uses fewer components to reduce failure points, and reduce design, qualification, and support costs.
The battle for high-performance slots has intensified as SSDs have brought stiff competition to the table, but this has also led to more competitive pricing and performance from the venerable 15K HDD segment. Let's take a closer look.
Last updated: Nov 15, 2019 at 01:16 pm CST
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- Page 1 [Introduction]
- Page 2 [Enterprise Performance 15K HDD v4 Internals and Specifications]
- Page 3 [Test System and Methodology]
- Page 4 [Benchmarks - 4k Random Read/Write]
- Page 5 [Benchmarks - 8k Random Read/Write]
- Page 6 [Benchmarks - 128k Sequential Read/Write]
- Page 7 [Benchmarks - Database/OLTP and File Server]
- Page 8 [Benchmarks - Email Server]
- Page 9 [Final Thoughts]