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How many Scan Listeners, we have to configure for 5 Node RAC?

Veera.OBIEESep 19 2013 — edited Sep 20 2013

Dear Professionals,

How many scan Listeners we need to configure for 5 Node RAC? Oracle will not allow us to create More than 3 scan's? What If i have one scan Listener per each for 1st 3 node's? what about remaining two Node's? How application user will connect to 4 or 5 Node? Can you please explain..? Forgive me, If am totally wrong?

Thanks

Sagar
This post has been answered by Hemant K Chitale on Sep 19 2013
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Hemant K Chitale
Answer

Each of the 5 instances will register itself with the scan listener (using the instance parameter remote_listener).  Thus, the scan listener is "aware" of the database instances on the other two nodes where it is not running.  It can still redirect incoming connections to the local listeners on these nodes (registered as local_listener).

Hemant K Chitale


Marked as Answer by Veera.OBIEE · Sep 27 2020
srsatya

Hi Sagar,

  Scan is not configured as per number of cluster nodes, in a cluster there will be only one scan address resolving to three different ip's for high avaliability purpose. So even in 10 or 20 node cluster, there will be only one scan address (listining on three different ip's), it will be running on any availiable cluster nodes and listens for connections.

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Locked on Oct 18 2013
Added on Sep 19 2013
#performance-availability, #rac-asm-clusterware-installation
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