Table 3. Data Copy Types Depending on the destination you select, several target disk types are available. To support target virtual disks on FAT file systems, split the source into 2GB files. For detailed information on target virtual disks types, see Table 4.
Table 4. Destination Disk Types
■ Flat - Copies the entire source disk size to the destination, regardless of its used and free space.
■ Thin - For managed destinations that support thin provisioning, creates an expanding disk on the destination. For example, if the source disk size is 10GB, but only 3GB are used space, the created destination disk is 3GB but potentially expands to 10GB.
■ Pre-allocated - Copies the entire source disk size to the destination, regardless of its used and free space.
■ Not pre-allocated - Creates an expanding disk on the destination. For example, if the source disk size is 20GB, but only 5GB are used space, the created destination disk is 5GB but potentially expands to 20GB. Take this measurement into account when you calculate the free disk space on the destination datastore.
■ 2GB Split pre-allocated - Splits the source disk into 2GB sections on the destination.
■ 2GB Split not pre-allocated - Creates 2GB sections on the destination that include only the real used space on the source disk. As the destination disk grows, new 2GB sections are created to accommodate the new data until the original source disk size is reached.