Translations:Add a Storage Partition & Modify your System to Suit/4/en
From Manjaro
I had to create a new partition, then reboot into Manjaro, where I moved all of my personal storage data over to the new partition. Then reboot the GParted live CD & shrink my /home down to 20GB, which is far larger than it needs to be in my new layout, but I have the disk space to spare, so why not? (I could always change it with GParted in the future if I had to.)