Data Protector 8.00 and CIFS Share Backup

When using Data Protector 8.00 to backup a CIFS share (Network Share Backup), no matter if it is a Windows share or NetApp Filer, it could happen that the job does not backup any data from the share. In more detail, when selecting to backup all folders for the share within the backup specification to backup the complete share, the started job completes with no warnings or errors, but no data written. When selecting single files in subfolders the backup completes as expected and writes data to the tape device. This problem occurs, even if you strictly followed the help for creating network share backup. To add the user to “replace token on process level” does not help either. The root cause is a changed behavior for browsing filesystems (treewalk) in Data Protector 8.00. With the omnirc variable OB2_USE_OLDER_TREEWALK=1 (to be changed for the client which is planned for the CIFS share backup) Data Protector 8.00 will with back to the old behavior for walking the tree. With this change in place now it is possible to backup the NetApp filer. Final comment: it might be more efficient to use the NDMP backup option instead using the network share function.