[OSX-Users] Re: file vault 2 - any takers?

[Chris Andrews]

 In the name of Science, I have applied FV2 to my new Air. Can't assess the impact fully as yet, but most write-ups claim the CPU hit is virtually zero. Certainly no current obvious CPU hit. I/O is negligible anyway, since the SSD is so speedyfast. 

Going from unencrypted to FV2 does not require the extra space on the SSD, and is utterly painless. The machine reboots, you log back in and can still use the Mac whilst it encrypts itself. Small thing to note is that the login screen will thereafter come up before OS X loads, since you need to authenticate to unlock the disk. 

There's the option to make a recovery secret in case you forget your password, and you can choose to store it with Apple, protected by three personal questions, should you so wish. 

Something of note - your Time Machine backups do not appear to be encrypted. So take the laptop with you and leave the backup disk at home somewhere safe.

Chris 


On Monday, 15 August 2011 at 19:46, Steve Harris wrote:

> I think that might only apply if you're migrating from FV1 to FV2, it has to unpack the old homedir somewhere.
> 
> FV1 used to use up loads of CPU and disk IO, the new one uses us loads of CPU, but only a little more IO.
> 
> - Steve
> 
> On 2011-08-15, at 15:37, Chris Andrews wrote:
> >  Well, that's me never turning it on, then. 70GB of files on a 128GB SSD. 
> > 
> > Not that I have anything overly sensitive, and anything even slightly sensitive is already encrypted.
> > 
> > Chris
> > 
> > On Monday, 15 August 2011 at 13:18, Mischa Tuffield wrote:
> > 
> > > Indeed, it does seem a lot better, and can be used with TimeMachine without the need to hack .plist files. 
> > > 
> > > One note of caution, it will render your machine useless for a while and half, and you need to have as much free space on your hard-drive as you have files in your home dir. 
> > > 
> > > Mischa
> > > On 15 Aug 2011, at 13:09, Steve Harris wrote:
> > > 
> > > > Yes, I use it. It's much better than FileVault 1, which was a huge resource hog, and messed with TimeMachine.
> > > > 
> > > > - Steve
> > > > 
> > > > On 2011-08-15, at 12:57, dr. m.c. schraefel wrote:
> > > > 
> > > > > So is anyone using file vault 2 in lion?
> > > > > 
> > > > > How's it going? would you recommend it?
> > > > > 
> > > > > thank you
> > > > > 
> > > > > 
> > > > > mc
> > 
> 

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