Major Release: IBM Aspera Sync 3.7.3 for AIX

Product Release: March 21, 2017
Release Notes Updated: March 21, 2017

Aspera is excited to introduce a major release of IBM Aspera Sync 3.7.3 for AIX, which provides the new features, fixes, and other changes listed below.


  • Sync is now documented for AIX. Below are highlights of new Sync functionality. For more information, see the IBM Aspera Sync Admin Guide 3.7.3 for AIX.
  • On machines with Unix-based operating systems, a new value, inode, is available for the --dedup option. In this mode, when two or more source files have matching inodes, a hardlink is created between them on the target and the target files have matching inodes.
  • Sync with S3 is now supported and documented.
  • Improved Sync shutdown process when a Sync session is stopped.
  • Sync sessions can now be filtered using the <filter> configuration in aspera.conf. Command line filters are applied after aspera.conf settings. If filtering is not always desired, configure filters for one user. Sync sessions run by that user are filtered while sync session run by other users are not.
  • Sync now supports access key authentication. Access keys provide an alternative to the security credentials of a node user or system user. Because an access key is restricted to its own storage (local or cloud), it allows access control and usage reporting to be segregated by storage. This offers significant benefits to multi-tenant service providers and enterprise installations with multiple departments. This also allows async to run on Aspera Files and for other REST-ful applications.
  • A new async admin option prints file attributes (mtime, recursive mtime for directories, and checksum).
  • Sync now preserves POSIX attributes in the event that file attributes change but file contents do not (times, UID, GID).
  • The new recursive mtime option enables the exclusion of directories and files older than a configured timestamp.
  • The new --delete-delay option allows the delete operations in a unidirectional sync to be delayed until the end of the synchronization.
  • When using the --keep-dir-local or --keep-dir-remote options, locating the keep-dir under the same directory as the sync directory is no longer an error condition as long as the keep-dir has been added to the exclude list.
  • The Async library now takes a license as a parameter. If the library doesn't get a license on initialization, it can still search for one on the disk, as it does currently.
  • async now accepts external cookies, tags, and reports through management.
  • Sync also has three new options for preserving timestamps.


The full release notes are available here. The product is available for download here.
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