Following best practices, I've been using the VMware Paravirtual SCSI controller for my disks. I am able to create the templates by attaching the floppy which holds the driver for the disk, then i proceed as normal. Eventually i'll disconnect and disable floppy drives as well. I've had no issues with this configuration until now...
In an effort to diagnose why my VMs cannot perform a quiesced snapshot manually, I have tried to uninstall VMware Tools, reboot, then reinstall VMware Tools. Seems easy enough and very straight-forward (especially since it did once boot without tools during the creation of the VM). Once I reboot my VM without Tools it does not come back online. It gives me a "Stop Error: Inaccessible Boot Device."
I've tried swapping the disk to an LSI Logic Controller to access command line. During this time I have tried to assign the correct volume letters, copying driver files to the c:\ (even though it can't yet boot), and using bootrec commands to rebuild. There is no system restore option available on the servers.
Since it has once booted without Tools, I suspect that when I uninstalled Tools it also removed a driver/driver reference within a boot file. Does anybody know where that driver(s) is located, I suspect its on the system reserved partition so I can copy the files back? Or if you know of a way to resolve this stop error that would also be great. I should be able to uninstall VMware tools without a booting issue.
NOTE: Most posts I've found on this error, people simply rebuilt but that doesn't solve my problem of being able to uninstall my tools.
Probably not the reason for Snapshot failure!
Anyway, the driver has not been installed into the system drivers. e.g. does not suggest to me the VM has been created correctly using the additional drivers.
Uninstalling VMware Tools removes VMware Tools and drivers, but it should not remove drivers which are installed in the drivers hive...
you should be able to check the inf files.
As a fyi, performance of the paravirtual driver is very similar to other drivers, and depends on workload.