Just a short question regarding RAID group aggregation. I've a 2020A running on DOT 7.3.4 and I'd like to attach two 14x1TB shelves (11 data, 2 parity, 1 spare) to one of it's controllers... As I remember there's a 16TB aggregate limit here, and each shelf has 8591973352 kbytes net capacity (just over 8TB) making both shelves have more just a drop over the limit.
If I go ahead with this, will the system allow it? If it does, can I run into some problems later on perhaps?
I was hoping to avoid creating 2 aggregates but it can't be done. 🙂
As for that 1 spare, I dunno... Regardless of NetApp's optimistic predictions, I've learned that it does take a long to time to rebuild a fully loaded 1 TB SATA disk. And since double failure is not a myth, and usually has to resolved while handling normal daily workload, I personally wouldn't feel comfortable waiting for ?? hours for it to finish - hoping that something else might not go wrong during that time with the same RAID group. That's a LOT of data to be lost.