https://www.youtube.com/watch?v=LkFDzerdD0w

That video seems to show that the array can only be expanded by 100%. I wonder if it can be expanded a second time if this doesn't use all of the available diskspace?

Looking at https://www.dell.com/support/article/us/...nd-h810?lang=en it seems that the array can be changed from raid 1 to raid 5 but the warning on the top of the page about always having a validated backup seems to me that it might be a waste of time trying to change the array type. If you have any type of failure then all that time waiting for it to complete could have been spent restoring a backup or copying the files back from a temporary storage location.

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Chad
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Chad