vInfrastructure Blog

Reading Time: 2 minutesVMware vSAN should manage better VM snapshots compared with traditional storage and VMFS datastores. The reason is the new (v2) on-disk format in VSAN 6.0 and the new filesystem that is used: VirstoFS. VirstoFS is the first implementation of technology that was acquired when VMware bought a company called Virsto a number of years ago. Also there is a new sparse format called vsanSparse. These replace the traditional vmfsSparse format (redo logs).

Reading Time: 3 minutesVMware vSAN provides both enterprise-class scale and performance supporting a wide variety of use cases and businesses of all types and sizes. One of the popular use cases for VMware vSAN is running Business-Critical Applications (BCA). But in this case it’s not only running some workload in a virtual environment, but it’s also provide reference architecture, proven configurations and also the ability to use specific functions, like guest clustering.

Reading Time: 2 minutesAfter replacing the SAS card on some ESXi 6.5 nodes, I’ve got a strange issue in the vSAN cluster. The vSAN was healthy and apparently working, but when I try to build new VMs wasn’t working at all, saying that there weren’t enough resources. But there was a lot of free reported space. The reason was that single node, the capacity disks where simply “not Healthy”, but reported as mounted.