In this TAM Lab, Raul de la Flor (Technical Account Manager) will demonstrate how we can test different hardware failure scenarios on a VSAN Stretched Cluster, checking how resilient VSAN is and how Storage Policy Based Management SPB can help us to protect our data.
Category Archives: Troubleshooting
TAM Lab 078 – Migrating & Converting RDMs to VMDKs
Raw Device Mappings (RDMs) can be difficult to work with when managing a virtual datacenter and with the latest vSphere storage capabilities you may not need RDMs any longer. Join Steve Tilkens (@stevetilkens) as he gets hands-on with RDMs and demonstrates how to migrate VMs with RDMs and convert RDMs to VMDKs.
Rating: 5/5
TAM Lab 009 – How to troubleshoot with vRealize Log Insight
Nico Guerrera (@nicomgu) demonstrated how to properly troubleshoot issues with vRealize Log Insight (vRLI) in his lab environment.
NOTE: This video is roughly 1 hour in length so it would be worth blocking out some time to watch it!
Rating: 5/5
How to expand a VMDK and extend a partition in Windows for VMware ESX
http://kb.vmware.com/kb/1007266 This video steps you through expanding a VMDK and extending a partition using DiskPart. Essentially, this allows for expanding the virtual disk for virtual machines in VMware ESX.
Check out Amazon’s selection of books on VMware: http://amzn.to/2pZInmt
Rating: 5/5
Troubleshooting Virtual SAN on-disk format upgrade to 3.0 failures
Posted on October 13, 2016 by Ramesh B S
This video demonstrates how to troubleshoot Virtual SAN on-disk format upgrade to 3.0, which may fail in small Virtual SAN clusters or ROBO/stretched clusters.
https://kb.vmware.com/kb/2144944
This video demonstrates how to troubleshoot Virtual SAN on-disk format upgrade to 3.0, which may fail in small Virtual SAN clusters or ROBO/stretched clusters.
Attempting an on-disk upgrade in certain VSAN configurations may result in failure. Configurations that can cause these errors are:
– The stretched VSAN Cluster consists of two ESXi Hosts and the Witness Node also called ROBO configuration
– Each Host in the Stretched Cluster contains a single VSAN Disk Group
– A Virtual SAN cluster consists of three normal nodes, with one disk group per node
– A Virtual SAN cluster is very full, preventing the full data migration disk-group decommission mode
During this upgrade, a single point of failure is exposed. Follow all VMware best practices, and your business practices, regarding the backup of important data and virtual machines.
This exposure to additional failure risk is referred to as “reduced redundancy,” and must be manually specified in the Ruby vSphere Console or RVC to allow the upgrade to proceed.