B-TREE filesystem for Linux

apt-get install btrfs-progs
echo "btrfs" >> /etc/modules
reboot

Create a disk partition using gdisk

gdisk /dev/sda
GPT fdisk (gdisk) version 1.0.6

Partition table scan:
  MBR: protective
  BSD: not present
  APM: not present
  GPT: present

Found valid GPT with protective MBR; using GPT.

Command (? for help): p
Disk /dev/sda: 7814037167 sectors, 3.6 TiB
Model: Portable
Sector size (logical/physical): 512/4096 bytes
Disk identifier (GUID): ED98F650-DC25-46BC-9D36-FCE4C20783C4
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 7814037133
Partitions will be aligned on 2048-sector boundaries
Total free space is 7811939948 sectors (3.6 TiB)

Number  Start (sector)    End (sector)  Size       Code  Name
   1            2048         2099199   1024.0 MiB  8300  Linux filesystem