A retry might sneak into the session (depending of end of sessions and reporting speeds).
Relaxed the test criteria for this case.

Done.

We now leave a placeholder on the tape and carry on in this case. The errors will eventually clear the
archive request.

The disk read task hangs in this case. The tape write taks is still created, will leave a placeholder on the
tape (to be implemented) and count an error for the request.

This reverts commit 5cda9ec6.

This reverts commit a17d1651.

was not enough.

Increasing wait time to give enough time for EOS to be ready and adding the FS online check for the systemd based regression test. Adding df -f output for the eos container as well to be extra safe.

Code commented out until XRootD bug #775 is fixed.

My previous commit only removed throw() from the hpp files.