When SSH Tectia Client is used to rename or transfer files or mainframe datasets to/from z/OS hosts, and direct MVS dataset access on the server side is needed, you need to define the following environment variables on the client:
SSH_SFTP_STREAMING_MODE=extto activate extended streaming
SSH_SFTP_CHECKSUM_MODE=noto deactivate the checksum mode
The checksums cannot be used with streaming, because checksum calculation requires staging, but staging and streaming are mutually exclusive.
Use the extended streaming only in connections to z/OS hosts, as it can slow down the transfer of small files in other environments.
For information on the
--rename command-line option, see sftpg3(1).