Can someone please explain to me, what the difference is between creating
mdadmarray using partitions or the whole disks directly? Supposing I intend to use the whole drives. Note, that they are with GPT.
Imagine RAID6 created in two ways, either:
mdadm --create /dev/md0 --level=6 --raid-devices=4 /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1
mdadm --create /dev/md0 --level=6 --raid-devices=4 /dev/sda /dev/sdb /dev/sdc /dev/sdd
Is there a difference?
EDIT1: I mean in for example reliability or manageability or recovery operations on such arrays, etc.
EDIT2: I do use different manufacturer’s drives. But that is not the question really. They all have the exact same size, I do get the point, that there may be manufacturers making drives slightly different sizes. But for the sake of this question, let’s assume they are the very same size.
EDIT3: Sort of disclaimer: So far I am always partitioning the drives.
Ten-tools.com may not be responsible for the answers or solutions given to any question asked by the users. All Answers or responses are user generated answers and we do not have proof of its validity or correctness. Please vote for the answer that helped you in order to help others find out which is the most helpful answer. Questions labeled as solved may be solved or may not be solved depending on the type of question and the date posted for some posts may be scheduled to be deleted periodically. Do not hesitate to share your response here to help other visitors like you. Thank you, Ten-tools.