This is my previous e-mail: On May 16, 2019 15:23, Strahil Nikolov <hunter86_bg(a)yahoo.com&gt; wrote: It seems that the issue is within the 'dd' command as it stays waiting for input: [root@ovirt1 mnt]# /usr/bin/dd iflag=fullblock of=file oflag=direct,seek_bytes seek=1048576 bs=256512 count=1 conv=notrunc,nocreat,fsync ^C0+0 records in 0+0 records out 0 bytes (0 B) copied, 19.3282 s, 0.0 kB/s Changing the dd command works and shows that the gluster is working: [root@ovirt1 mnt]# cat /dev/urandom | /usr/bin/dd of=file oflag=direct,seek_bytes seek=1048576 bs=256512 count=1 conv=notrunc,nocreat,fsync 0+1 records in 0+1 records out 131072 bytes (131 kB) copied, 0.00705081 s, 18.6 MB/s Best Regards, Strahil Nikolov ----- Препратено съобщение ----- *От:* Strahil Nikolov <hunter86_bg(a)yahoo.com&gt; *До:* Users <users(a)ovirt.org&gt; *Изпратено:* четвъртък, 16 май 2019 г., 5:56:44 ч. Гринуич-4 *Тема:* ovirt 4.3.3.7 cannot create a gluster storage domain Hey guys, I have recently updated (yesterday) my platform to latest available (v 4.3.3.7) and upgraded to gluster v6.1 .The setup is hyperconverged 3 node cluster with ovirt1/gluster1 & ovirt2/gluster2 as replica nodes (glusterX is for gluster communication) while ovirt3 is the arbiter. Today I have tried to add new domain storages but they fail with the following: 2019-05-16 10:15:21,296+0300 INFO (jsonrpc/2) [vdsm.api] FINISH createStorageDomain error=Command ['/usr/bin/dd', 'iflag=fullblock', u'of=/rhev/data-center/mnt/glusterSD/gluster1:_data__fast2/591d9b61-5c7d-4388-a6b7-ab03181dff8a/dom_md/xleases', 'oflag=direct,seek_bytes', 'seek=1048576', 'bs=256512', 'count=1', 'conv=notrunc,nocreat,fsync'] failed with rc=1 out='[suppressed]' err="/usr/bin/dd: error writing '/rhev/data-center/mnt/glusterSD/gluster1:_data__fast2/591d9b61-5c7d-4388-a6b7-ab03181dff8a/dom_md/xleases': Invalid argument\n1+0 records in\n0+0 records out\n0 bytes (0 B) copied, 0.0138582 s, 0.0 kB/s\n" from=::ffff:192.168.1.2,43864, flow_id=4a54578a, task_id=d2535d0f-c7f7-4f31-a10f-704923ce1790 (api:52)

2019-05-16 10:15:21,296+0300 ERROR (jsonrpc/2) [storage.TaskManager.Task] (Task='d2535d0f-c7f7-4f31-a10f-704923ce1790') Unexpected error (task:875) Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/vdsm/storage/task.py", line 882, in _run return fn(*args, **kargs) File "<string>", line 2, in createStorageDomain File "/usr/lib/python2.7/site-packages/vdsm/common/api.py", line 50, in method ret = func(*args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/storage/hsm.py", line 2614, in createStorageDomain storageType, domVersion, block_size, alignment) File "/usr/lib/python2.7/site-packages/vdsm/storage/nfsSD.py <http://nfssd.py/>";, line 106, in create block_size) File "/usr/lib/python2.7/site-packages/vdsm/storage/fileSD.py <http://filesd.py/>";, line 466, in _prepareMetadata cls.format_external_leases(sdUUID, xleases_path) File "/usr/lib/python2.7/site-packages/vdsm/storage/sd.py", line 1255, in format_external_leases xlease.format_index(lockspace, backend) File "/usr/lib/python2.7/site-packages/vdsm/storage/xlease.py", line 681, in format_index index.dump(file) File "/usr/lib/python2.7/site-packages/vdsm/storage/xlease.py", line 843, in dump file.pwrite(INDEX_BASE, self._buf) File "/usr/lib/python2.7/site-packages/vdsm/storage/xlease.py", line 1076, in pwr It seems that the 'dd' is having trouble checking the new gluster volume. The output is from the RC1 , but as you see Darell's situation is maybe the same. On May 16, 2019 21:41, Nir Soffer <nsoffer(a)redhat.com&gt; wrote: On Thu, May 16, 2019 at 8:38 PM Darrell Budic <budic(a)onholyground.com&gt; wrote: I tried adding a new storage domain on my hyper converged test cluster running Ovirt 4.3.3.7 and gluster 6.1. I was able to create the new gluster volume fine, but it’s not able to add the gluster storage domain (as either a managed gluster volume or directly entering values). The created gluster volume mounts and looks fine from the CLI. Errors in VDSM log: ... 2019-05-16 10:25:09,584-0500 ERROR (jsonrpc/5) [storage.fileSD] Underlying file system doesn't supportdirect IO (fileSD:110) 2019-05-16 10:25:09,584-0500 INFO (jsonrpc/5) [vdsm.api] FINISH createStorageDomain error=Storage Domain target is unsupported: () from=::ffff:10.100.90.5,44732, flow_id=31d993dd, task_id=ecea28f3-60d4-476d-9ba8-b753b7c9940d (api:52) The direct I/O check has failed. This is the code doing the check: 98 def validateFileSystemFeatures(sdUUID, mountDir): 99 try: 100 # Don't unlink this file, we don't have the cluster lock yet as it 101 # requires direct IO which is what we are trying to test for. This 102 # means that unlinking the file might cause a race. Since we don't 103 # care what the content of the file is, just that we managed to 104 # open it O_DIRECT. 105 testFilePath = os.path.join(mountDir, "__DIRECT_IO_TEST__") 106 oop.getProcessPool(sdUUID).directTouch(testFilePath) 107 except OSError as e: 108 if e.errno == errno.EINVAL: 109 log = logging.getLogger("storage.fileSD") 110 log.error("Underlying file system doesn't support"