Published: Tue, February 20, 2018
Industry | By Faith Ward

Samsung Announces Production Of the PM1643, The Industry's Largest Capacity SAS SSD

Samsung Announces Production Of the PM1643, The Industry's Largest Capacity SAS SSD

Samsung claims that the PM1643 is the world's largest SSD (they're probably not counting Seagate's 60TB SSD, as it still hasn't shipped) and makes use of 64-layer, 3-bit 512-gigabit chips using V-NAND technology.

Samsung began manufacturing initial batches of these SSDs back in January and mass production has now kicked off. However, raising capacity to 30.72TB wasn't the only goal here, Samsung has also risen performance levels significantly. The PM 1643 is jointly built with a combination of 32 1TB NAND flash units, each comprising of 16 stacked layers of 512Gb V-NAND chips. Sequential read and write speeds of up to 2100 MBPS and 1700 MBPS respectively were recorded in tests done by Samsung. The drive has a 12GBps SAS interface with random read and write speeds of up to 400,000 IOPS (Input/output operations per second) and 50,000 IOPS as well as sequential read and write speeds of up to 2,100MBps and 1,700MBps, respectively. This is three times faster than a normal SATA SSD. Over the course of this year, Samsung will be adding 15.36TB, 7.68TB, 3.84TB, 1.92TB, 960GB and 800GB versions of this drive to their line up for enterprise. As Samsung executive VP of memory sales Jaesoo Han said in a press statement, the company will "continue to move aggressively in meeting the shifting demand toward SSDs over 10TB".

The drive also comes with a new controller that integrates nine main and sub controllers used in previous SSDs. Moreover, the PM1643 features Through Silicon Via (TSV) technology to interconnect 8Gb DDR4 chips, creating 10 4GB TSV DRAM packages for a huge 40GB in DRAM.

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Talking about the software, the SSD features an error correction code (ECC) algorithm that ensures high reliability with minimal storage maintenance. Mean time between failures is two million hours. "Furthermore, the SSD provides a robust endurance level of one full drive write per day (DWPD), which translates into writing 30.72TB of data every day over the five-year warranty period without failure".

The company's goal is to target various market segments such as financial services, education, pharmaceutical, business services, communications sectors, government, healthcare, oil and gas, social media, and retail.

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