GPT disk A GPT disk uses the GUID partition table (GPT) disk partitioning system. A GPT disk offers these benefits: • Allows up to 128 primary partitions. (MBR disks can support up to four primary partitions and an infinite number of partitions inside an extended partition.) • Allows a much larger volume size - greater than 2 TB, which is the limit for MBR disks. • Provides greater reliability due to replication and cyclical redundancy check (CRC) protection of the partition table. • Can be used as a storage volume on all x64-based platforms. -- -- Remember it's not that we have something to hide, we just have nothing we want to show. ---Keep tunnelling.