Parallel, Painless, Fastest Transfers for IBM Spectrum Scale


GPFsYNC is a file replication program. Supports parallel transfers. Transfer rate performance rises to the maximum.  It also supports ACLs which makes it trouble free and seamless transition from any storage to GPFS.



GPFsYNC can be used across LAN and WAN networks to perform bulk transfer and continuous replication at any directory level between POSIX filesystems, with NFSv4 ACLS. Performance tuning can deliver maximum parallel transfer rates or throttle with server-managed QoS. Server resource tuning includes server load averages and memory allocation to limit end-user disruption.

GPFsYNC can be configured as a push or pull architecture in archive, validation, and compression modes.




  • Eliminates single threaded performance bottlenecks in Spectrum Scale AFM, rsync and rclone


  • Bi-direction or one-way synchronization of file systems

  • Snapshot replication for point-in-time consistency (source and target must be Spectrum Scale)

  • Add encryption and compression


Supports POSIX filesystems, with NFSv4 ACLS.



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