Once you encrypt your MacBook’s drive with FileVault 2, you’ll never even know it’s there. But if you ever lose your machine, you can rest easy knowing that your data is safe. Considering how well this solution performs and that it is included free of charge, there is no reason not to use it!
I am pleased to note that CoreStorage, the volume manager in Mac OS X Lion, is much more functional than I had guessed, including a number of undocumented but seemingly functional commands for on-the-fly resizing of logical volumes as well as manipulation of physical volumes.
Using system memory for storage is something of a lost art these days. But many of today’s I/O intensive tasks can still benefit from the untouchable quickness provided by a ramdisk. Happily, most operating systems are still capable of creating and using ramdisks.