ZFS disabling sync writes on dataset

[JavaScriptDude]

I have a freenas box that I use to back ESX VMs onto one dataset while I use other datasets for other usecases. I don't have a SLOG yet and thus speed is poor due to ESX pushing sync writes to the NFS store on my freenas box.

If I created a separate dataset for the NFS share and set sync=disabled for just that dataset will I be able to contain corruption to just that dataset if I loose power mid-write or will the entire ZFS pool still be at risk to corruption?

 

[dlavigne]

If you set a property on a dataset, only that dataset (and its child datasets that aren't explicitly set differently) is affected by the ramifications of that property.

 

[JavaScriptDude]

Thanks Dru