IBM XIV: Phasing Out and Phasing In a component

When a part is failed in a XIV system, the part is marked as phased out.

This command instructs the system to stop using the component, where the component can be either a disk, module, switch or UPS.

For disks, the system starts a process for copying the disk’s data, so that even without this disk, the system is redundant. The state of the disk after the command is Phasing-out.

The same process applies for data modules. The system starts a process for copying all the data in the module, so that the system is redundant even without this module. A data module phase-out causes a phase-out for all the disks in that module.

For UPSs and switches, the system configures itself to work without the component. There is no phase-out for power supplies, SFPs or batteries.

Phasing out a module or a disk, if it results in the system becoming non-redundant, is not permitted. Components must be in either OK or a Phase In status.

Once the phase-out process is completed, the component's state is either Fail or Ready, depending on the argument markasfailed. If true, the phased-out component is marked as a failed component (in order to replace the component). If false, the phased-out component is in the Ready state.

component_phaseout component=ComponentId [ markasfailed=<yes|no> ]

Phasing In:
This command instructs the system to phase in a component. Components are used by the system immediately. For disk and data modules, a process for copying data to the components (redistribution) begins. Components must be in Ready or Phasing Out states. There is no phase-in for power supplies, SFPs or batteries.

component_phasein component=ComponentId