Requirements: Build a two-node SQL 2012 application cluster active/passive on Server 2008 R2 Guest OS spanning physical hosts.
I'm following the guidelines in http://pubs.vmware.com/vsphere-55/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-55-setup-mscs.pdf
As well as the "Virtualizing SQL Server with VMware" publication from VMware press.
Questions:
Why does VMware "recommend" (but not require) Physical mode RDMs? Is it just an issue of performance? This DB is not intended for high performance.
Are there any issues with using Virtual mode RDMs for nodes spanning physical hosts besides performance?
Are there particular volumes that really benefit from physical mode more than others?
As you can probably guess, I would prefer to use virtual mode RDMs if I can, and only use physical mode where it is truly needed.