EMC ScaleIO question/understanding about faulsets

[zeynel]

Hi there,

i am a little bit confused. maybe someone have some tipps.

I have 4 nodes. Two of them in one Rack/Room and the other two of them also in one Rack/Room.

----------------------------------------------
-- node1 / node2 | --
-- | node3 / node4 --
-----------------------------------------------


how i have to configure the FaultSets/SDS/Pools/Protected Domains to get a catched up a location failover (two nodes on one side) so that i have no risk of a downtime.

any ideas ?

Thx.

 

[cesmith9999]

In my opinion you do not have enough nodes to have a reliable fault set. even with my 8 node the EMC techs told me that you should only think about this when you have ~16 nodes.

http://www.emc.com/collateral/white-papers/h15148-emc-scaleio-deployment-guide.pdf

Chris

 

[zeynel]

yes, i need more nodes.

i just want to configure a TWO faild node setup. mybe i have to increase the spare capacity ?

 

[cesmith9999]

In this configuration you would need a 50% spare capacity

Chris