Sounds like you already understand that the drives will grow "equally" together until a time when the 1TB drives are full and all new growth will go to the 2 TB drives...
I would say thats an unfavorable position to be in, performance wise. Eventually, even if you rebalance your capacity across all the NL drives, the 1 TB drives/shelves will fill up, and at that point, all new writes will go to just the new shelf, thus losing the performance and redundancy benefits provided by the other shelves.
A slow way this can be fixed is to work with support to re-arrange your magazines one or 2 at a time so that every shelve has an equal number of 1TB and 2TB mags.
_________________ Richard Siemers The views and opinions expressed are my own and do not necessarily reflect those of my employer.
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