With a new harddrive purchase I decided to encrypt it before moving all the data there.
I have followed some tutorial regarding encrypting the drive and have used disk utility to create and encrypted image on a 2TB Seagate hardrive, encrypted image is 1.8TB. When trying to move my data I realised that the speeds are horrendous and moving directly to the encrypted image is much slower than moving to the unencrypted part of the harddrive. Below is the comparison:
Here same files are copied to encrypted and unencrypted parts of the drive. Writing speed is about 18x slower for the encrypted part. I have seen in a related answer that a disk image encryption is much slower than the partition encryption. Hard drive is HDD, I have USB 3.0 port as well as cables for both drives.
Would speeds be much more favourable if the whole drive was encrypted?
What is the best way of encrypting a harddrive that will not affect the read/write speeds too much and will be mainly used with a macbook?