Watch out with VSAN FTT=1 and Maintenance Windows… Lessons Learned the Hard Way

A couple of weeks back I had a less fantastic Friday evening… When performing a one hour maintenance window to update some filter drivers on some of our ESXi 5.5  hosts.. this evening turned out to be not so pleasant Friday the 13th… In our company, for some workloads we run VSAN. And I must say that I love the simplicity of the product. Not much to configure and if everything is setup right, and with the right hardware you have a bunch of reasonably fast Terabytes of storage on your … [Read more...]