rsync be default is using an encryption method most likely more taxing than arcfour.
I'd imagine your local disk is unencrypted while you are reading/writing to it.... On Fri, Jul 11, 2014 at 4:09 PM, ToddAndMargo <[email protected]> wrote: > On Fri, Jul 11, 2014 at 3:58 PM, ToddAndMargo <[email protected] >>> <mailto:[email protected]>> wrote: >>> >>> Hi All, >>> >>> I have a bash script for synchronizing a flashing drive (target) >>> with my hard drive (source) I take to customer sites (with a read >>> only switch so I don't spread viruses). >>> >>> I currently "rsync" 11 different directories. Each sync line >>> looks like this: >>> >>> rsync -rv --delete $MyCDsSource/Linux $MyCDsTarget/.; sync; sync >>> >>> Problem: it is slow -- takes three hours. To help the >>> speed issue, I upgraded from USB 2 to USB 3. Backup went >>> from 3 hr-15 min to 3 hr-5 min. It is almost faster >>> to wipe the stick and rewrite it. >>> >>> Anyone know of a way to speed up rsync? >>> >>> Many thanks, >>> -T >>> >>> > > > On 07/11/2014 01:01 PM, Steven Miano wrote:> The likely culprit is > encryption. > > >> If this is all on a local network segment and you can forgo the security >> aspect: >> >> -e "ssh -T -c arcfour -o Compression=no -x" >> >> ~Steven >> > > > Hi Steven, > > The USB 3 flash drives and plugged directly into my > USB 3 Front panel hub. > > My local hard drive is LUKS encrypted. Is that an issue? > Doesn't seem to slow anything else down. > > Many thanks, > -T > -- <http://stevenmiano.com/> Miano, Steven M. http://stevenmiano.com
