This document uses the term preprovisioning in the context of preparing or preconfiguring entities such as chassis slots, media dependent adapters (MDAs), ports, and interfaces, before initialization. These entities can be installed but not enabled. When the entity is in a no shutdown state (administratively enabled), the entity is considered to be provisioned.
The 7210 SAS-D, 7210 SAS-Dxp, 7210 SAS-K 2F1C2T, 7210 SAS-K 2F6C4T, and 7210 SAS-K 3SFP+ 8C and the variants are platforms with a fixed port configuration, and no expansion slots. The 7210 SAS software inherits the concept of CPM, IOM and MDA from the 7750 SR to represent the hardware logically. These components are fixed and are not removable. The software creates two logical cards to represent the CPM and IOM and these are preprovisioned on boot-up. The IOM card is modeled with a single MDA, a logical entity to represent the fixed ports on the system. This MDA is auto-provisioned on boot-up and the user does not need to provision it. Ports and interfaces can also be preprovisioned.