2. vCloud Cell Design Examples : 2.1 Load Balanced Cell Configuration : 2.1.2 Example : 2.1.2.1. Prerequisites
   
2.1.2.1. Prerequisites
*More than one vCloud Director supported cell server (Red Hat Enterprise Linux).
*Supported network latency (in this example, < 2ms RTT between vCloud Director cells). The environment must behave as though it is a single site (that is, low latency).
*Location and password of the keystore file that includes the SSL certificates for this server.
*Shared transfer storage space, mapped on each vCloud Director cell.
*Shared database instance.
*Network Time Protocol configured on each cell.
*Network Load Balancer device, and Console and Proxy Health Monitors.
*vCloud Director “Public Addresses” configuration.