VMware Malaysia further cemented its software-defined storage (SDS) strategy with the launch of Virtual SAN 6 and vSphere Virtual Volumes. VMware’s SDS strategy leverages the hypervisor to advance storage in the cloud and deliver the operational efficiency that server virtualization brought to compute.
“Customers have told us they need a simple, cost-effective and cloud-aware approach to storage,” said Raghu Raghuram, executive vice president and general manager, Software-Defined Data Center Division, VMware. “VMware Virtual SAN 6 and VMware vSphere Virtual Volumes address customer requirements through an improved hypervisor-converged storage tier, and a new virtual machine-aware integration with existing storage arrays.”
VMware’s Virtual SAN (VSAN) is a redundant array of storage nodes housed inside of the compute layer, where the network is mainly there to replicate bits of data from one node to another. VSAN takes over from VMware’s earlier attempts at the technology with its Virtual Storage Appliance (VSA). VSA didn’t really take off as it was woefully expensive for the intended target audience of SMBs and required three hosts.
Virtual SAN 6 comes with double the scalability and up to four-and-a-half times greater performance than its earlier incarnation. VSAN 6 features a two-tier all-flash architecture in which flash devices are intelligently used for both caching and data persistence. It will provide more than four times increase in input/output throughput per node compared to VSAN 5.5 while delivering predictable sub-millisecond latency.
A 64-node VSAN cluster will deliver up seven million input/output operations per second (IOPS) with nearly perfect linear scalability. This also means you can clump together 6,400 virtual machines per cluster and exceed eight petabytes of storage capacity from a cluster.
For data protection, VSAN features snapshot capability of up to 32 per virtual machine while minimizing the performance overhead. VMware claims VSAN 6 is rack-aware meaning you can intelligently place VM objects across server racks for enhanced application availability even in case of complete rack failures.
Watch the video below for more on VMware's VSAN.