Appendix

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Hard links
On Unix-based systems, it's possible to encounter multiple files with the same inode. The most common case of this is a hard link. For Sync is irrelevant whether two files with multiple inodes are hard links or if they are different. It assumes that directories have unique inodes.
Creating SSH keys from the command line
Rsync versus async uni-directional example
The async and rsync command line options are similar for basic uni-directional synchronization.
Restarting Aspera services
When you change product settings, you might need to restart certain Aspera services in order for the new values to take effect.
Docroot versus file restriction
A transfer user's access to the server's file system can be restricted by configuring a docroot or a file restriction. Though similar, certain Aspera features require that the transfer user has a file restriction rather than a docroot.
Testing and optimizing transfer performance
To verify that your system's FASP transfer is reaching the target rate and can use the maximum bandwidth capacity, prepare a client to connect to an Aspera server. For these tests, you can transfer an existing file or file set, or you can transfer uninitialized data in place of a source file, which you can delete at the destination, eliminating the need to read from or write to disk and saving disk space.
Log files
The application log file includes detailed transfer information and can be useful for review and support requests. You can configure log rotation and redirect Aspera logging so that it is not recorded in the system log file.
Preserving IBM Spectrum Scale ACLs of transferred files
Ascp and Aspera Sync can preserve NFSv4 and POSIX ACLs and immutability attributes when transferring files from an IBM Spectrum Scale (formerly GPFS) cluster to another cluster.
Connecting to IBM Aspera Shares from the GUI
As of IBM Aspera Shares version 1.9.3, the client must have HSTS, HSTE, or Desktop Client installed in order to access Shares on a server with HSTS, HSTE, or Desktop Client installed.
Logging client file system activity on HSTS
HSTS can be configured to log operations on the server's file system that are performed from client applications (such as the HSTS in client mode, or Console).
Setting up email notifications
The email notification feature is a built-in pre- and post-processing application that generates customized emails based on transfer events. To enable email notifications, HSTE must be configured for pre/post-processing and have network access to an open SMTP relay server.
Product limitations
Describes any limitations that currently exist for Aspera transfer server and client products.

Parent topic: Aspera Sync

Parent topic: High-Speed Transfer Endpoint Admin Guide for Linux