Corrupted file system on rebel (openQA worker host for s390x tests)

Hello together, we can not run any tests for openSUSE Tumbleweed (s390x) and other ZSystems distributions any more, because the file system of the host rebel is corrupted. Rebel is used as a worker node with connections to the SUSE mainframe. Is there any possibility to replace rebel with working hardware? Thank you! Best regards, Sarah