The Oracle Solaris Cluster 4.2 software requires the following memory requirements for every cluster node:
Minimum of 1.5 Gbytes of physical RAM (2 Gbytes typical)
Minimum of 6 Gbytes of available hard drive space
Actual physical memory and hard drive requirements are determined by the applications that are installed. Consult the application's documentation or contact the application vendor to calculate additional memory and hard drive requirements.