The control plane database (CPDB) is a persistent, central repository of data that guarantees consistent access and updates of data by using database locks and transactions. The CPDB uses an Oracle database featuring remote access and control. This database contains the following information pertaining to logical server farms, physical devices, and software associated with an I-Fabric:
Properties and connections of devices, such as servers
Logical server farm configurations
Resources, such as VLANs and IP addresses
State of network-specific applications
State of requests
Software images and their state
WML
FML
MML
DNS and DHCP configurations
The request table in the CPDB keeps growing as the Control Center processes requests. By keeping the requests, you can obtain a history of activities in the control plane. You can also manually delete requests that are no longer needed. For more information, see Managing the Request Queue in N1 Provisioning Server 3.1, Blades Edition, System Administration Guide.