This IS the Avid L2: [Avid-L2] Re: does FreeFileSync verification really do much?

I didn't see any responses to this, but I sent it late on a Friday, so
thought I'd bump the thread...

On 2014-09-04, 11:27 PM, Michael Brockington wrote:
> I've been giving "Free File Sync" a whirl after reading about it on
> this list a couple months back. I'm on OSX 10.9.2
>
> I notice that file verification is not enabled by default. You have
> to dig into 'expert' settings in the XML settings file that resides in
> ~/Library/Application Support/FreeFileSync in order to turn it on.
>
> When turned on, FFSync does produce messages in it's log indicating
> each file copy has been verified, but the time taken for verification
> is very short, which doesn't give me much confidence that the
> verification is reliable.
>
> I was using a test folder of about 7.5 GB of files.
>
> FFS - with no verification - took 1:01 (1 minute, 1 second)
> FFS - with verification - took 1:13 (so only about 13% longer)
>
> rsync (which does a real checksum) - 3:10
> CCC (which uses rsync under the hood, so again doing a real
> checksum) - 3:17
>
> As another point of comparison, I know ShotPut Pro takes about
> twice as long to back up footage when MD5 Checksums are turned on.
>
> FFS takes so little time for its verification both in percentage
> terms, and in comparison to other backup programs, it makes me wonder
> whether it is really doing a useful check.
>
> Curious to hear what others might think.
>
> Cheers,
> --Michael