BytesRequiredForGPTPartitionEntries is the total bytes required to store the GPT partition entries.

GPTPartitionStartByte is the byte on the disk at which the first partition starts.

NoOfLogicalBlocksForGPTHeader is the no.

OpenEBSNDMPartitionName is the name meta info for openEBS created partitions.

Disk struct represents a disk which needs to be partitioned.