Author : Alyc Helms
Topic Name : Storage DRS Workflows
Publication Name : vCenter Server and Host Management
Product/Version : VMware vSphere/6.0
Question :
What is the maximum number of DRS Affinity rules a vcenter can handle in vsphere 6.0 and 6.5 clusters?
refer: Maximum Number of DRS Rules per Cluster?
As per me, there is NO as such limit on number of DRS rules on the cluster. It is recommend to use DRS rules sparingly, hence it is better not to use them unless it is absolutely required. As the number of rules gets increased, it will restrict DRS opportunities of balancing the cluster. It is operationally challenging in managing them as well. -- vThinkBeyondVM
If there was a limit, rest assured it would have been mentioned in the maximum configurations guide -
https://www.vmware.com/pdf/vsphere6/r60/vsphere-60-configuration-maximums.pdf
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Cheers,
Supreet