linuxluksssdtrim
I'm moving over to Linux when the new SSD arrives. SSD gives increased performance, so I thought that I could encrypt everything.
But then I came to think about TRIM, and garbage collection on the drive. Will a LUKS encrypted drive affect the garbage collection system? (TRIM).
There is a new article from Anand with more info about SSD magic :) I'd advise you to read it too. TRIM is explained in more detail there. In general, it says that trim is good, but:
...Unfortunately, no drives properly support TRIM yet...
That support is only in beta firmware at the moment. So, if both your OS and controller firmware support TRIM, then it will work approximately this way: your OS will send that command to the SSD controller once some file is permanently deleted. Whether it will be actually trimmed at that moment or some other time depends entirely on your drives firmware implementation.
If your OS doesn't support TRIM, then there is a chance that you can get a wiper tool from your drive manufacturer. You can read how that works here.
If your drive controller doesn't support TRIM, then maybe you can get an update or some beta version of it's firmware.
Hope that helps.
Download and install the Intel SSD Toolbox.
If your drive is not an Intel SSD, the only option available will be View Drive Information. Click that. Scroll down to
Word
169, Bit 0 - Data Set Management Supported
If this is 1, you have TRIM. If 0, you don't.
Best Answer
I emailed them. And TRIM will not work. Because the OS doesn't know where files are stored. Only the encrypted system knows it. Due to the fact that the encryption comes first. I'll use truecrypt instead. On top of the file system for my home folder.