I recently took a new job in a RedHat shop and I'd like to move all of my homelab systems to RedHat upstream products to better align with what I manage at work. I had a "custom" (aka - hacked together) 3-node Hyperconverged XenServer cluster and would like to get this moved over to Ovirt (I'm currently testing with 4.2.7). Unfortunately, my storage is limited to software RAID with a 128GB SSD for cache. If at all possible, I would prefer to use ZFS (RAIDZ+ZIL+L2ARC) instead of MD RAID + lvmcache, however I'm not able to get this working and I'm not sure why. My ZFS and Gluster configuration is working - at least where I can manually mount all of my gluster volumes from all of my nodes, however, hosted-engine --deploy fails. I understand this isn't an out of the box configuration for Ovirt, however I see no reason why this shouldn't work. I would think this would be no different than using any other Gluster volume for the engine datastore, Am I missing something that would prevent this from working?

[ INFO  ] TASK [Add glusterfs storage domain]

[ ERROR ] Error: Fault reason is "Operation Failed". Fault detail is "[Storage Domain target is unsupported]". HTTP response code is 400.

[ ERROR ] fatal: [localhost]: FAILED! => {"changed": false, "deprecations": [{"msg": "The 'ovirt_storage_domains' module is being renamed 'ovirt_storage_domain'", "version": 2.8}], "msg": "Fault reason is \"Operation Failed\". Fault detail is \"[Storage Domain target is unsupported]\". HTTP response code is 400."}

[root@vmh1 ~]# mount -t glusterfs localhost:/engine /mnt/engine/

[root@vmh1 ~]# ls /mnt/engine/

__DIRECT_IO_TEST__

[ ERROR ] Error: Fault reason is "Operation Failed". Fault detail is "[Error creating a storage domain]". HTTP response code is 400.

[ ERROR ] fatal: [localhost]: FAILED! => {"changed": false, "deprecations": [{"msg": "The 'ovirt_storage_domains' module is being renamed 'ovirt_storage_domain'", "version": 2.8}], "msg": "Fault reason is \"Operation Failed\". Fault detail is \"[Error creating a storage domain]\". HTTP response code is 400."}

 

Volume Name: engine

Type: Replicate

Volume ID: 2e34f8f5-0129-4ba5-983f-1eb5178deadc

Status: Started

Snapshot Count: 0

Number of Bricks: 1 x 3 = 3

Transport-type: tcp

Bricks:

Brick1: vmh1-ib:/zpool1/engine

Brick2: vmh2-ib:/zpool1/engine

Brick3: vmh3-ib:/zpool1/engine

Options Reconfigured:

transport.address-family: inet

nfs.disable: on

performance.client-io-threads: off

[root@vmh1 ~]# ansible ovirthosts -m shell -a 'ls -n /zpool1' -b

vmh3 | CHANGED | rc=0 >>

total 2

drwxr-xr-x. 3 36 36 3 Nov 15 04:56 data

drwxr-xr-x. 3 36 36 4 Nov 15 06:31 engine

drwxr-xr-x. 3 36 36 3 Nov 15 04:56 iso

vmh1 | CHANGED | rc=0 >>

total 2

drwxr-xr-x. 3 36 36 3 Nov 15 04:56 data

drwxr-xr-x. 3 36 36 4 Nov 15 06:31 engine

drwxr-xr-x. 3 36 36 3 Nov 15 04:56 iso

vmh2 | CHANGED | rc=0 >>

total 2

drwxr-xr-x. 3 36 36 3 Nov 15 04:56 data

drwxr-xr-x. 3 36 36 4 Nov 15 06:31 engine

drwxr-xr-x. 3 36 36 3 Nov 15 04:56 iso