Looking to expand their datacenter portfolio, Samsung has introduced two new SATA-based SSDs. The SM863 is aimed at penetrating ~3 DWPD (Drive Write Per Day) mixed workload environments. The PM863 is targeted at read intensive workloads where ~1 DWPD provides sufficient endurance.
Samsung designed their SM863 SSDs with 2-bit MLC V-NAND for write-intensive applications such as mail servers, data warehousing, and high-performance computing. The MLC powered SM863 is able to deliver the tight consistency and quality of service that is highly sought after in the enterprise space. The PM863 TLC V-NAND SSDs are focused on read-intensive applications such as streaming services, content delivery networks, web servers and cloud services. These type of read-intensive applications have fairly low endurance requirements which are ideal for value-centric TLC flash arrays.
The SM863, as far as we can tell, was created not as a replacement for the ultra-high endurance 10 DWPD 845DC Pro, but more to fill the need for a high capacity, top performing mid-endurance storage solution that was missing from Samsung's datacenter portfolio. The PM863, on the other hand, seems to be a replacement for the 845DC EVO. The PM863 featuring Samsung's second generation V-NAND delivers a nice all around upgrade over the 845DC EVO. Lower cost, better performance, increased capacity, and endurance makes the PM863 more desirable than the already potent 845DC EVO.
Both of these SSDs are based on Samsung's V-NAND (3D) technology, which makes them both inherently superior to competing planar (2D) solutions. Samsung's V-NAND is superior to planar (2D) flash on all fronts including density, endurance, performance and power consumption. Currently, Samsung is the only NAND fab shipping 3D flash products. This along with Samsung's completely in-house production gives them a clear advantage over the competition.
A quick look at the specs shows the SM863 960GB delivering up to 97K/28K read/write IOPS and 520/485 MB/s sequential read/write sustained performance. We find the PM863 960GB delivers up to 99K/18K read/write IOPS and 520/475 MB/s read/write sustained performance. The 960GB SM863 retails for 67 cents per gigabyte, and the 960GB PM863 comes in at 57 cents per gigabyte.
Last updated: Apr 7, 2020 at 12:34 pm CDT
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- Page 1 [Introduction and Quick Specs]
- Page 2 [Photos and Specifications]
- Page 3 [Test System Setup and Testing Methodology]
- Page 4 [Benchmarks – 4K Random Write/Read]
- Page 5 [Benchmarks - 8K Random Write/Read]
- Page 6 [Benchmarks – 128K Sequential Write/Read]
- Page 7 [Mixed Workload Benchmarks - Email Server]
- Page 8 [Mixed Workload Benchmarks – OLTP/Database]
- Page 9 [Mixed Workload Benchmarks – Web Server]
- Page 10 [Final Thoughts]