Liam Parker | Sr. Technologist, Enterprise SSD Architecture
Sandisk
Liam Parker is a senior technologist specializing in SSD systems architectures responsible for next generation enterprise products. He has extensive experience in data placement technologies like ZNS & FDP. He has deep expertise in SSD and system algorithms for reducing write amplification, improving drive performance and endurance.
Appearances:
Future of Memory and Storage - Day 2 @ 09:20
Increasing Block Sizing Changes Data Placement Economics
As block sizes in the underlying NAND media in SSDs increase to accommodate higher capacities there are tradeoffs that significantly change the cost structure for implementing small vs large unit data placement strategies. These tradeoffs have both performance and cost implications that are complex due to changes in WAF, SLC cache required and data protection schemes. In this presentation we examine the current techniques and requirements for small vs large unit data placement and apply those to assumed future NAND block sizes to understand the economics of leveraging the same techniques in the future. This analysis should help inform the industry of potential changes that should be made to accommodate their data placement infrastructure as drive capacities begin to exceed 256TB. This is important to begin aligning host data placement techniques with data placement available in future SSDs
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