Does disk encryption causes a performance penalty for Data Access/Read/Write, etc

[Andrea Venturoli]

VeeJay wrote:
> Hi
> 
> Does *disk encryption* causes a *performance* penalty for Data
> Access/Read/Write, etc?
> 

*Yes*.
If your disk is faster than your CPU, I/O will slowdown.

I've seen an Athlon64 4200+ use up to 90% of its computing power just to 
transfer files from an NFS server to a local SATA disk.
In case the CPU was less powerful, or otherwise busy doing something 
else, total throughput would have decreased.

  bye
	av.