US Patent 9870366 Processing storage capacity events in connection with file systems

Described are techniques for processing capacity-related event occurrence. A first occurrence is determined for of any of a low threshold event and an out of space event for a first storage pool. A set of one or more virtually provisioned logical devices has physical storage provisioned from the first storage pool and physical storage for a file system is provisioned from the set of one or more virtually provisioned logical devices. First processing is performed responsive to determining the first occurrence of any of the low threshold event and the out of space event for the first storage pool. The first processing includes performing processing to that protects the file system.