If you do not need capacity or performance, why not smaller FAS2xxx
A 10 data disks per aggregate is going to be sloooooooow.
-----Original Message----- From: toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] On Behalf Of John Stoffel Sent: Wednesday, September 25, 2013 4:16 PM To: Scott Classen Cc: toasters@teaparty.net Subject: Re: What is the minimum number of shelves for a FAS3220 HA pair?
Scott> We are considering a FAS3220HA running clustered ONTAP (8.2) with Scott> a single DS4246 shelf. However, we were recently informed by our Scott> sales people that this is not possible, and that the minimum Scott> number of shelves for an HA pair running cDOT was two. Apparently Scott> each node needs it's own DS4246 for the cDOT operating system? Is Scott> it not possible to split the disks on a single shelf into two Scott> aggregates and assign one aggregate to each controller?
Each head needs it's own boot disks, and since it's hard-coded to boot off slots 1 and 2 (or some other pair, I forget) in the shelf, having just one shelf would not allow the other head to boot.
Personally, I'd probably gamble that a single 3220 with a single shelf doesn't really need clustering since you're obviously (to me at least, please correct me if I'm wrong) not looking for capacity or even massive performance, since you have a small number of spindles. But I could be totally off base here.
John
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