vSAN is a wonderful shared storage option in a vSphere cluster, but it requires an administrator with deep product knowledge and overall awareness to be able to manage it with an understanding of its quirks and gotchas. I’ve worked with several vSAN clusters composed of many nodes for a few years now but sometimes it still surprises me. I’ve recently spent a couple of hours troubleshooting a “General vSAN Error” to figure out why I couldn’t put a host in…
There are a few caveats that make the calculation and planning of VSAN capacity tough and gets even harder when you try to map it with real consumption on the VSAN datastore level. VSAN disks objects are thin provisioned by default. Configuring full reservation of storage space through Object Space Reservation rule in Storage Policy, does not mean disk object block will be inflated on a datastore. This only means the space will be reserved and showed as used in VSAN Datastore…
vSAN 6.6 it’s 6th generation of the product and there are more than 20+ new features and enhancements in this release, such as: Native encryption for data-at-rest Compliance certifications Resilient management independent of vCenter Degraded Disk Handling v2.0 (DDHv2) Smart repairs and enhanced rebalancing Intelligent rebuilds using partial repairs Certified file service & data protection solutions Stretched clusters with local failure protection Site affinity for stretched clusters 1-click witness change for Stretched Cluster vSAN Management Pack for vRealize Enhanced vSAN…
Virtual SAN provides the Storage Performance Proactive Tests which lets you to check parameters of your environment in an easy way. You just need few clicks to run a test. Well, we can see a lot of tests from nested labs in the Internet, however there are not so many real examples. I decided to share some results of such a real environment which consists 5 ESXi hosts. Each is equipped with 1x SSD Disk 1,92 TB and 5x HDD…