Depends on how many nodes you have. They reserve port 13-20 (8 ports) as an ISL. That allows you to connect up to 12 nodes. There is an expansion slot on the 5010 to allow for more ISL's and more nodes, if needed. I think they take you to a set of 5020's for a full 24-node cluster.
Oh, and you may think it seems excessive, it is if you only have a handful of nodes. But, if you are purchasing from NetApp, they basically, "throw in" the extra switches. i.e. the 5010's and the 2960's
SFO - Storage failover CFO - Controller Failover
CFO is used when you have a two node system. It is basically the same thing as failover in 7-mode/ONTAP7
Storage Failover allows for only aggregates to failover, not necessarily waiting on the controller. Since there is a global namespace and logical interfaces, controller failover is not needed when using more than 2 nodes.
And as been said a few times now...you get no SFO/CFO capability in the simulator. they are only stand alone nodes.
--tmac Tim McCarthy Principal Consultant
RedHat Certified Engineer 804006984323821 (RHEL4) 805007643429572 (RHEL5)
On Mon, Jul 23, 2012 at 10:57 AM, John Stoffel < john.stoffel@taec.toshiba.com> wrote:
tmac> It is not terribly bad, but the filesystems are not compatible tmac> at all. ALL data is wiped/disks are zero'd
tmac> Plus you need to get license keys from NetApp for cluster mode. tmac> Set some environment variables.
tmac> Make sure you have proper networking... i.e. 2 x Cisco 5010 tmac> switches solely for the cluster backend and 2 x Cisco 2960 tmac> switches for the administration network and then whatever tmac> networking you want to add on top of that for your data tmac> network(s).
This seems amazingly excessive. You can't use those same two Cisco 5010s for boththe cluster *and* the management? It's got 20 10gib/s ethernet ports, how many do you need for the backend?
tmac> Make sure you have multi-path storage properly configured.
tmac> You are best off getting the simulator and playing with that for tmac> a while to see how it goes. The downside to the simulator is tmac> that it now longer supports ha mode (it did way back in 7.x tmac> days, but not not so much) so you end up with two single nodes tmac> with now sfo/cfo capability.
I assume you meant "no sfo/cfo" instead? But could you please explain sfo/cfo as well? Is that 'single failover/cluster failover' like I suspect? I'm certainly motivated to spin up the simulator to start getting used to this new OS and to see how it would impact us if/when we upgrde our existing systems.
John John Stoffel - Senior Staff Systems Administrator - System LSI Group Toshiba America Electronic Components, Inc. - http://www.toshiba.com/taec john.stoffel@taec.toshiba.com - 508-486-1087