zvol vs plain file for VMs

[Nikos Vassiliadis]

On 12/20/14 06:41, Ashish SHUKLA wrote:
> On Fri, 19 Dec 2014 19:59:32 +0100, Nikos Vassiliadis <nvass at gmx.com> said:
> | Hi,
> 
> | I have to convert a mail server to a VM and I don't know what kind of
> | storage to use, a plain file or a zvol?
> 
> | Are there any pros in using ZVOLs instead of plain files?
> 
> | Thanks, Nikos
> 
> I don't use FreeBSD for VMs, but theoretically plain file will have filesystem
> overhead which ZVOL won't.
> 
> HTH
> 

Hi,

Thank you for your reply Ashish!

When you say overhead, you mean overhead on disk or in RAM? could you
explain a bit more?

Thanks, Nikos