Patent ID: 8805889

Claim:
A method comprising: recording, by a first server device of group of server devices operating together as a single distributed file server layer for a file system, a first change in usage of a resource of the file system at a first time, the first change recorded as a first quota change tag; recording, by the first server device, a second change in the usage of the resource at a second time later than the first time, the second change recorded as a second quota change tag; subsequent to the second time and not in a time interval between and comprising the first time and the second time: updating, by the first server device in view of both of the first quota change tag and the second quota change tag, a quota file shared by the group of server devices to track the usage of the resource; and storing, by the first server device in a lock value block (LVB) corresponding to an ID of the resource and separate from the quota file, data for the resource from the updated quota file, wherein the LVB is referenced by the group of server devices to compare the usage of the resource to a quota limit for the resource that is also stored in the LVB corresponding to the resource.