SFTP connection to z/OS has transfers failing with "inputstream closed" or "channel is broken" errors.

Document ID : KB000085087
Last Modified Date : 14/04/2018
Show Technical Document Details
Issue:
Error Message :
com.uc4.ftpjob.DataTransferException: channel is broken.
com.uc4.ftpjob.DataTransferException: inputstream is closed.

When attempting a file transfer with freeform commands such as: 
 
ls /+mode=binary 
ls /+lrecl=1028 
ls /+recfm=vb 
ls /+blksize=27998 
ls /+linerule=rdw 
ls /+space=cyl.15.25 

All transfers fail with a DataTransferException similar to the above error messages.

 
Environment:
OS: Z/OS
OS Version: N/A
Cause:
Cause type:
Defect
Root Cause: z/OS specific arguments were ignored.
Resolution:
Update to a fix version listed below or a newer version if available.

Fix Status: Released

Fix Version(s):
RA FTP Solution 4.0.0 - Available
Additional Information:
Workaround :
N/A