Automatic change “Max Server Memory” value if a Failover occurs

For Spanish version visit this link Cambiar automáticamente el valor de “Max Server Memory” si ocurre un Failover
 
In one of our environments, we have a cluster with two active-active nodes with one SQL Server instance in each one.
During this week, a fail of the service occurred in one of the nodes, which caused a failover to the node that was available.
The problem that we found was that the node only have 25GB of RAM memory and the value of “Max Server Memory” assigned for each instance was 20GB, so we have the risk that if the two instances beginning to need more RAM memory would come a moment that the Windows OS would lose performance.
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Cambiar automáticamente el valor de “Max Server Memory” si ocurre un Failover

For English version visit this link Automatic change “Max Server Memory” value if a Failover occurs
 
En uno de nuestros entornos, tenemos un cluster de dos nodos activo-activo con una instancia SQL Server en cada uno.
 Durante esta semana, sufrimos una caida del servicio en uno de los nodos, esto provocó que se realizara un failover al nodo que quedaba disponible. El problema que nos encontramos es que el nodo tenía solamente 25GB de RAM y el valor de “Max Server Memory” asignado a cada instancia era de 20GB, por lo que corriamos el riesgo de que si las dos instancias empezaban a necesitar RAM llegaria un momento que el sistema operativo Windows perdería rendimiento.
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