Hello,
We are looking into a solution of HA for our sql servers. Solutions that we got are AlwaysOn FCI with SQL Server Standard with shared storage and AlwaysOn Availability Groups. We just received another proposal yesterday regarding SQL server virtualization with Vmotion. Vmotion supports live migration of virtual machines without any downtime.
We understand from their proposal that there will be only one virtual machine running SQL server. In case the physical host goes down, that VM will move another host. My question is: Is that virtualized solution comparable to an AlwaysOn FCI and AlwaysOn AG? Our ultimate solution is not to lose any transactions. In case of AlwaysOn FCI and ALwaysON AG, it is understood that the passive server will pickup without the loss of transaction. Will that be the case here? In the scenario of Vmotion, when the host is down and it is moved to the new host, is there a chance the logs and data files become corrupt?
thanks to advise.
Dave