This post is a feature request for vSAN 🙂 One of my customers has a 4-nodes vSAN all-flash cluster. They use compression, deduplication and RAID 5 for non-critical VMs/vmdk and RAID 1 for critical. RAID 5 erasure coding requires less additional capacity to protect data than RAID 1 mirroring. When you have vSAN enabled and… Read More »
During VMworld this year, I attended at nice session on vSAN troubleshooting tips. There are some tools that help us to find a root of problem: esxcli RVC Health Check vSAN Observer vRealize Operations Manager vRealize Log Insight esxcli There are some commands as below examples: esxcli vsan network list - Verify which VMkernel adapters… Read More »
Recently I realized that vSphere 6.0 added one additional option for vSphere On-disk Metadata Analyzer(VOMA) - possibility to fix errors. VOMA is a tool (introduced in vSphere 5.1) to check metadata consistency of a file system (such as VMFS) or a logical volume backing the file system. The tool can be useful for the… Read More »