Breakthrough in Small File Transfer Speed - New ascp4

Aspera's ascp4 is a next-generation file transfer binary that ships in version FASP 3.6 alongside ascp to introduce a new architecture for ultra high-speed transfer of small files in addition to large data sets. The architecture transfers one million (1MM) files per minute for even the smallest file sizes (e.g. <10KB) and achieves > 5Gbps transfer rates for global RTT and packet loss conditions (200ms / 2%) (Performance Benchmarks)

  • File metadata is sent over the FASP transport channel, alongside the data, eliminating the per-file overhead of sending this metadata on TCP.
  • Additionally read/write I/O is highly parallelized and chunk sizes are configurable, allowing for maximum per file open rates for even the smallest files.
  • Pipelined file I/O mechanism feeds incoming chunks through compression, encryption and transfer as they are coming in from disk.
  • The number of parallel I/O threads is configurable.

ascp4 is available as a secondary binary in all products. Major new capabilities in ascp4 include the following:

  • Integration in Console for transfer initiation, control and reporting..
  • Preservation of file timestamps and file ownership (uid, gid).
  • Full support for Aspera docroots.
  • Support for the Aspera shell.
  • Options to parallelize all file operations - directory traversal, file attribute checking, in addition to read write further increases performance
  • Resumable transfers
  • Configurable overwrite policies and skip of existing files
  • Direct to cloud storage transfer support
  • Extremely fast small file transfers to cloud storage 10-100X faster than S3 HTTP multipart over WAN (250-500 files transferred per second for throughputs greater than 500 Mbps for files of average size <=10 KB)
  • Full compatibility with FASP manager APIs (transfer control and reporting)
  • Sparse file and symlink support
  • Support for sparse file transfer.