Patent ID: 8560581
Filing Date: 2013-10-15
Classification: G06F

Abstract:
1. A method for recovering transactions of failed nodes using a recovery procedure in a clustered file system (CFS) using a processor device, the method comprising: determining a data segment should be copied to a final storage location by validating that an ownership of the data segment is not associated with any other operational node, via a distributed shared memory (DSM) agent; setting the ownership of the data segment to a local DSM agent; including a transaction journal in each node for storing committed transactions generated by users on that node; scanning a list to identify the location of the latest contents of a data segment prior to the transaction using a rollback procedure; for each modified data segment, identifying the location of the latest contents prior to the transaction using the rollback procedure by: recording a type of each data segment in the list during insertion of the data segment into the list, wherein: