Back up eclipse/rdz/rtc client workspace/sandbox on disk to RTC repository

What is the best way to back up the current workspace where eclipse client is launched ?

Tried doing...

1. Create a RWS & Default Component MyClientWorkspace
2. Load > Load root folders of the components as projects
3. Load and create eclipse project for selected folder. NOTE: I could NOT use Advanced options > Load selected folders but do not create Eclipse projects
4. Import File System > Browse to select the client workspace root directory.

While trying to do so, got the following error(s).

Problems were encountered during import:
  Could not read from source when writing file 'C:\RTCworkspace\MyClientWorkspaceComp\.jazz5\.jazzlock'
  The process cannot access the file because another process has locked a portion of the file.
  Error opening input stream for C:\RTCworkspace\.jazz5\.flags\.inverseItemInfos.isComplete
  Error opening input stream for C:\RTCworkspace\.jazz5\.flags\.persistentMetadata.isComplete
  Could not read from source when writing file 'C:\RTCworkspace\MyClientWorkspaceComp\.metadata\.cicsexplorer.trace.0.log.lck'
  The process cannot access the file because another process has locked a portion of the file.
  Could not read from source when writing file 'C:\RTCworkspace\MyClientWorkspaceComp\.metadata\.lock'
  The process cannot access the file because another process has locked a portion of the file.
  Could not read from source when writing file 'C:\RTCworkspace\MyClientWorkspaceComp\.metadata\.plugins\com.ibm.team.fulltext.client\fulltext_index\com.ibm.team.workitem.query.QueryDescriptor\write.lock'
  The process cannot access the file because another process has locked a portion of the file.
  Could not read from source when writing file 'C:\RTCworkspace\MyClientWorkspaceComp\.metadata\.plugins\com.ibm.team.fulltext.client\fulltext_index\com.ibm.team.workitem.WorkItem\write.lock'
  The process cannot access the file because another process has locked a portion of the file.

Can these(*.lock) be safely ignored since the rest of the files are imported or any other cleaner approach ?

Thank you, 

Ravikanth Chavali