Cluster shared volume replication

A system to replicate input-output (I/O) events related to a cluster shared volume (CSV), the system comprising:

• a cluster device configured to:
• capture a direct I/O event, generated at the cluster device, associated with the cluster shared volume using a legacy file system filter driver of the cluster device, wherein the legacy file system filter driver is different than a CSV filter driver at the cluster device and the CSV filter driver is associated with the cluster shared volume,
• enable the legacy file system filter driver after the CSV filter driver is enabled, and
• transmit, using a replication filter at the cluster device, the captured direct I/O event to the replica server, wherein the replication filter is different than the legacy file system filter driver.

A computer program product comprising:

• a non-transitory computer readable storage medium comprising computer readable program code embodied therewith to replicate input-output (I/O) events of a cluster shared volume (CSV), the computer readable program code comprising:
• computer readable program code configured to capture, using a processor operatively associated with a cluster device, a direct I/O event associated with the cluster shared volume using a legacy file system filter driver of the cluster device, the direct I/O event generated at the cluster device, wherein the legacy file system filter driver is different than a CSV filter driver at the cluster device, the CSV filter driver associated with the cluster shared volume;
• computer readable program code configured to enable the legacy file system filter driver at the cluster device after the CSV filter driver is enabled;
• and
• computer readable program code configured to transmit, using a replication filter at the cluster device, the captured direct I/O event from the cluster device to a replica server, wherein the replication filter is different than the legacy file system filter driver.