I was looking at dm-crypt and have seen that you can use whatever filesystem you like on top of the encrypted drive. So I was wondering if a journaled filesystem is a good idea as opposed to a non-journaled one. Also, what filesystem would be best to deal with power failures with an encrypted drive?
Is a journaling filesystem a good idea with a dm-crypt encrypted drive?
filesystems;encryption
Journaling is a technique that helps with recovery from problems that occur when multi-write operations are interrupted. Such interruptions can leave the file system in an inconsistent state between writes.Interruptions can happen with normal block devices and dm-crypt block devices alike. For a file system, a block device is a block device. Block device encryption and file system journaling are completely separate concerns.