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No. Just like all hardware based raids you can set mdadm to use full raw disk. The GPT is only useful when you want to use part of the disk for RAID - partitio
by adamzochowski 8y ago
No. Just like all hardware based raids you can set mdadm to use full raw disk.
The GPT is only useful when you want to use part of the disk for RAID - partitioning disk into multiple parts where only some of it will be raided. Some people prefer opposite. First raid raw disks and then partition that md storage.
The other reason to put GPT (or old style partition table) is so that no system or tool will mistakenly be helpful with detrcting "uninitiated drive" and then asking to perform quick format.