Seems we have NFS permissions issue for el8 vdsm in some of the runs.
Example from
https://jenkins.ovirt.org/view/Amit/job/ovirt-system-tests_manual/6302/artifact/exported-artifacts/test_logs/basic-suite-master/post-004_basic_sanity.py/lago-basic-suite-master-host-1/_var_log/vdsm/vdsm.log:
2020-01-03 12:07:34,169-0500 INFO (MainThread) [vds] (PID: 1264) I am the actual vdsm 4.40.0.1458.git1fca84350 lago-basic-suite-master-host-1 (4.18.0-80.11.2.el8_0.x86_64) (vdsmd:152)...
2020-01-03 12:50:29,662-0500 ERROR (check/loop) [storage.Monitor] Error checking path /rhev/data-center/mnt/192.168.200.4:_exports_nfs_exported/b92b26cf-fac4-4ccf-ba31-f6fb4184e302/dom_md/metadata (monitor:501)
Traceback (most recent call last):
File "/usr/lib/python3.6/site-packages/vdsm/storage/monitor.py", line 499, in _pathChecked
delay = result.delay()
File "/usr/lib/python3.6/site-packages/vdsm/storage/check.py", line 391, in delay
raise exception.MiscFileReadException(self.path, self.rc, self.err)
vdsm.storage.exception.MiscFileReadException: Internal file read failure: ('/rhev/data-center/mnt/192.168.200.4:_exports_nfs_exported/b92b26cf-fac4-4ccf-ba31-f6fb4184e302/dom_md/metadata', 1, bytearray(b"/usr/bin/dd: failed to open \'/rhev/data-center/mnt/192.168.200.4:_exports_nfs_exported/b92b26cf-fac4-4ccf-ba31-f6fb4184e302/dom_md/metadata\': Operation not permitted\n"))
2020-01-03 12:50:30,112-0500 DEBUG (jsonrpc/7) [jsonrpc.JsonRpcServer] Calling 'StoragePool.disconnect' in bridge with {'storagepoolID': 'c90b137f-6e1f-4b9a-9612-da58910a2439', 'hostID': 2, 'scsiKey': 'c90b137f-6e1f-4b9a-9612-da58910a2439'} (__init__:329)
2020-01-03 12:50:30,114-0500 INFO (jsonrpc/7) [vdsm.api] START disconnectStoragePool(spUUID='c90b137f-6e1f-4b9a-9612-da58910a2439', hostID=2, remove=False, options=None) from=::ffff:192.168.201.4,38786, flow_id=8d05a1, task_id=95573498-d1c7-41ad-ad33-28f2192b2b60 (api:48)