FileVault 2, or just FileVault since Mountain Lion, is drive level encryption.
Milan Sent from my iPad > On Aug 2, 2017, at 21:21, Tim Nevels via 4D_Tech <4d_tech@lists.4d.com> wrote: > >> On Aug 2, 2017, at 12:51 PM,Chip Scheide wrote: >> >> depending on the computer system. >> This is built into (software) OS X it is called 'FileVault'. >> I believe that Windows 7+ has a similar feature, but this might not be >> true at all, or only for newer (8 and or 10). >> >> I do not have explicit experience (I'm sure Jody does), i would expect >> there to be some performance hit with Filevault, as it is software. > > Remember that what Jody is talking about the encryption is handled in > hardware by the drive controller so performance hit is negligible as they > say. Don’t confuse the issue by including consumer level software encryption > like FileVault. FileVault is for personal use only. > > Just making the point for any amateurs out there reading this thread. The > people running 4D Server on a Mac Mini and they think “I’ll be more secure > and put my data file in FileVault." Yeah, it should work. But I think you > would be hard pressed to find anyone that would recommend doing that. > > And also keep in mind that drive level encryption has no impact on database > performance when you are accessing the data cache. No encryption of the data > cache and memory. So the negligible decryption performance hit only impacts > the first read from disk to load the data cache. And there is a negligible > encryption performance hit when writing to disk. But that only happens when > the cache is flushed. And the flush happens in a separate thread on a > separate core on 4D Server. So that makes it super negligible. > > ********************************************************************** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: http://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **********************************************************************
