Once those requirements are met, VMs can be migrated via vMotion and SvMotion to the new cluster and managed using the same vCenter Server. Implementing vSAN ESA requires approved hardware and vSAN Advanced or Enterprise license. The vSAN Express Storage Architecture can be incorporated into existing environments to make the transition simple and more transparent. ESA offers improved CPU efficiency, improved availability with reduced failure domains, simplified storage device provisioning with proactive insights, and RAID-6 data storage with RAID-1 performance. There are immediate benefits to implementing vSAN 8 with ESA. There is also the benefit that all SSDs are additive to the pool capacity, whereas previously, cache was only duplicative to buffer write activity. Performance is now spread out across the entire pool for read and write activity instead of flowing into the cache primarily. The main advantage comes down to moving away from a cache and capacity design and now onto a single-tier architecture that others in the software-defined space have adopted. ESA is optional and straightforward to implement. To keep up with these innovations, VMware developed the next-generation storage architecture that takes advantage of new hardware and software. To meet the demands of the hardware, software, and cloud evolution, VMware is rolling out technology optimized for next-generation hardware. HDDs are now used more for archiving, and cloud storage is part of everyday life for most businesses. Flash technology is vastly more mature and priced lower than ever, with NVMe nearly replacing SATA and SAS. Cloud storage and computing were in the early stages, causing a stir.įast forward to today, and processors are struggling to keep up with the demands of modern applications. Ten years ago, spinning disks were the norm, servers were keeping in line with Moore’s Law, and flash drives, although available, were expensive and didn’t have the capacities of HDDs. ESA is an optional alternative to the current vSAN original storage architecture and will be available to run on qualified hardware ESA-approved vSAN ReadyNodes.īefore getting into the details of ESA, it might be worth just looking at how far things have progressed in the past decade. This next-generation storage architecture has been significantly overhauled to run high-performance workloads on the latest hardware. VMware took advantage of VMware Explore to announce the introduction of vSAN 8 with Express Storage Architecture (ESA).
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