This week, Chris and Martin chat to Phil Bullinger, Senior VP and General Manager for the Data Centre Business Unit at Western Digital. As storage media capacities increase, recording methods are introducing challenges to maintaining resiliency and performance. SMR (Shingled Magnetic Recording) and ZNS (Zoned Namespaces) are two techniques that have developed to address the scaling issues in modern media devices. SMR is a technique for hard drives that overlays the recording area of tracks on storage media to gain increased areal density. This results in a requirement to re-write entire blocks or zones of …