Patent ID: 9495264
Filing Date: 2016-11-15
CPC Classification: G06F

Claim Text:
1. A method comprising: starting generation of a full copy of a file system on a primary node at a first time, wherein the file system is locked while the full copy is generated; starting generation of an incremental checkpoint at substantially the first time; receiving input/output requests to the file system on the primary node; storing queued changes to the file system in a sequential log; unlocking and making changes to the file system on the primary node at a second time later than the first time in response to corresponding input/output requests; completing generation of the full copy at a third time concurrent with or later than the second time; storing the full copy on a remote node; completing generation of the incremental checkpoint after the third time, wherein the incremental checkpoint consists of changes to the file system stored in the sequential log; storing the incremental checkpoint on the remote node; and generating a replication copy of the file system by applying the changes in the incremental checkpoint to the full copy of the file system.