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Ubuntu - Disk - Ramdisk

Create a Ramdisk

mkdir /mnt/ramdisk
mount -t tmpfs -o rw,size=240G tmpfs /mnt/ramdisk

NOTE: This mounts a ramdisk with 240GB under the path /mnt/ramdisk.

-t tmpfs:
- tmpfs only uses memory when you it contains files.
- When it is empty, it will take almost no space in RAM.

Verify that the RAMDISK has been created.

df -h

Edit /etc/fstab, and add the following line to the the end of the file.

tmpfs  /mnt/ramdisk  tmpfs  rw,size=240G  0   0