Maintaining Physical Machines
You can maintain physical machines (PMs), or nodes, in an everRun system by adding or replacing various components or even the entire PM.
Prerequisite: Before you add, replace, or upgrade a component, see Physical Machine Hardware Maintenance Restrictions.
            Determine what component needs to be replaced and then read the topic for the appropriate procedure:
- To add  or replace PM components, see:
- Adding or Replacing Hot-Swappable Components for hot-swappable components such as network cables, fans, and power supplies
 - Adding or Replacing Components That Are Not Hot-Swappable for components such as CPUs and memory or any other component that is not hot-swappable.
 - Adding a New NIC for adding new network interface cards (NICs).
 
 - To replace a PM or a failed motherboard, NIC, or RAID controller, see Replacing Physical Machines, Motherboards, NICs, or RAID Controllers.
 - To upgrade both PMs in a running system, see Upgrading Both Physical Machines In a Running System.
 
For information on disks, see Logical Disks and Physical Disks.