1.2. Hardware recommendations

RAM is the most important hardware feature to size properly. Make sure your system has enough RAM available. Typical RAM requirements are:

For larger deployments, increasing RAM is more effective than increasing disk space because much of the data is stored in cache. In general, adding more RAM leads to better performance for larger deployments due to caching. In virtualized environments, memory ballooning must be disabled or the complete RAM must be reserved for the guest IdM servers.