The article explains EMC's SRDF/Metro dual‑active storage solution and VDM MetroSync NAS high‑availability architecture, detailing how active‑active configurations work, bias and witness options, deployment steps, and their role in ensuring continuous data access across clustered environments.
From 2012 to 2016, EMC’s World conferences introduced a series of groundbreaking storage and data‑management technologies—including XtremIO flash arrays, ViPR software‑defined storage, Isilon OneFS, VxRack hyper‑convergence, and the formation of Dell Technologies—shaping industry trends and highlighting the shift toward cloud‑centric data solutions.
This article examines how deduplication and compression technologies, widely used in backup environments, are adapted for primary storage systems—particularly HDD arrays—by analyzing differences in I/O size, patterns, performance requirements, resource allocation, and implementation approaches of major vendors such as NetApp and EMC.
This article introduces EMC's DD Boost—a proprietary protocol for Data Domain that improves backup efficiency, lists the backup applications that support it, explains required TCP ports and storage unit setup, and outlines its key features such as distributed segment processing and load balancing.
