SQL 2012 - Clustered SQL Server 2012 on Hyper-V 3.0 - RAM Best Practices

Hello All!

Would you be so kind to advise what would you suggest for the following settings of the VM which is node of the SQL Server 2012 Cluster.

In our case, we have the following settings

• VM settings on the Hyper-V:
  Startup RAM: 8 GB
  Minimum RAM: 4 GB
  Maximum RAM: 16 GB
• SQL Settings:
  Minimum RAM: 4 GB
  Maximum RAM: 16 GB

We found out that if SQL Server Minimum RAM is smaller than Minimum RAM of the VM settings on the Hyper-V then SQL Server 2012 Management Studio crashes when we try opening it after some period of idle time. So we set them equal each other. I have the following questions:

1. Are there any best practices for setting up the minimum and startup RAM settings in relation to the SQL Server 2012 minimum RAM settings?
2. Is there any explanation of why crash occurs?

Thanks a lot for you help in advance!