The Toshiba THNSNJ512GCSU is a purpose-built solution for the value-conscious who need to address read-centric and operating system workloads, such as boot drives in servers. The DRAM-less design is advantageous to reducing component cost, and though it isn't ensured, without volatile DRAM cache, there is less chance of losing data due to a host power-loss event.
The lack of a DRAM cache also incurs a performance penalty, but for read-centric environments, and even mobile applications, the fastest SSD isn't always a steadfast requirement. For those with a good knowledge of their workload requirements, the Toshiba HG6 can provide more than enough performance, and the zero overprovisioning design offers maximum usable capacity.
One encouraging sign from the HG6 was its consistent performance profile during our testing. The consistent performance will pay off in RAID environments and application performance, even though it comes at a sacrifice of some speed.
The HG6 isn't going to win any top performance awards, but it isn't designed to. In random read/write workloads, it offered solid performance, but trailed the other entrants. It also trailed in mixed random workload testing, but delivered a solid consistent performance profile that would be suitable for most low-intensity applications.
Sequential performance was a bright spot, with solid read/write performance that matches, or beats, the competition. The HG6 suffered more performance variability when we moved into mixed sequential workloads. In our server workloads, the HG6 continued the trend of offering steady, consistent performance that didn't top the charts. Many of our server workloads are write-intensive; in the read-centric web server tests the HG6 was very competitive with the other SSDs in the test pool.
Another bright spot was the very conservative power consumption of the HG6. It consistently beat the competition with excellent power consumption metrics. SSDs often encounter extensive idle time in operating system environments; the HG6 offers Devsleep functionality to accommodate that reality, effectively shutting down the SSD while waiting for commands.
The HG6 also did not get to display the benefits of its adaptive SLC cache layer in our testing. This layer of SLC cache catches the performance-inhibiting small random writes, and flushes them to the MLC layer later. This delivers a big performance boost in operating system environments, but is not displayed in our sustained workload testing. The SLC layer also boosts endurance, which is listed at 1 DWPD for five years. The HG6 also offers TRIM support for operating system environments.
The HG6 is designed to meet a specific need, and a complex mix of factors always affects the purchasing decision. The HG6 offers multiple enterprise features, such as end-to-end data protection and SED options. If priced competitively enough, the HG6 can be the answer for those looking for an economical way to boost performance while maintaining a low power threshold.
Product Summary Breakdown
|Quality, Design, Build and Warranty||90%|
|Power Consumption and Efficiency||92%|
|Overall TweakTown Rating||91%|
The Bottom Line: Toshiba's THNSNJ architecture is flexible enough to find itself into many winning OEM solutions. The HG6 is a purpose-built solution for read-centric applications, and offers end-to-end data protection, Devsleep, encryption, SED, and other enterprise -specific features.
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- Page 1 [Introduction]
- Page 2 [Toshiba HG6 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 Web Server]
- Page 8 [Benchmarks - Email Server]
- Page 9 [Final Thoughts]
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