[ovirt-users] ovirt with glusterfs data domain - very slow writing speed on Windows server virtual machine

Hi folks, I have been experimenting with oVirt cluster based on glusterfs for the past few days. (first-timer). The cluster is up and running and it consists of 4 nodes and has 4 replicas. When I try to deploy Windows Server VM I encounter the following issue: The disk of the VM has ok reading speed ( close to bare metal) but the writing speed is very slow. ( about 10 times slower than it is supposed to be). Can anyone give me any suggestion, please? Thanks in advance! Here are the settings of the glusterfs volume: Volume Name: bottle-volume Type: Replicate Volume ID: 869b8d1e-1266-4820-8dcd-4fea92346b90 Status: Started Snapshot Count: 0 Number of Bricks: 1 x 4 = 4 Transport-type: tcp Bricks: Brick1: cnode01.bottleship.local:/gluster_bricks/brick-cnode01/brick-cnode01 Brick2: cnode02.bottleship.local:/gluster_bricks/brick-cnode02/brick-cnode02 Brick3: cnode03.bottleship.local:/gluster_bricks/brick-cnode03/brick-cnode03 Brick4: cnode04.bottleship.local:/gluster_bricks/brick-cnode04/brick-cnode04 Options Reconfigured: network.ping-timeout: 30 cluster.granular-entry-heal: enable performance.strict-o-direct: on storage.owner-gid: 36 storage.owner-uid: 36 server.event-threads: 4 client.event-threads: 4 cluster.choose-local: off features.shard: on cluster.shd-wait-qlength: 10000 cluster.shd-max-threads: 8 cluster.locking-scheme: granular cluster.data-self-heal-algorithm: full cluster.server-quorum-type: server cluster.quorum-type: auto cluster.eager-lock: enable network.remote-dio: off performance.low-prio-threads: 32 performance.io-cache: off performance.read-ahead: off performance.quick-read: off auth.allow: * user.cifs: off transport.address-family: inet nfs.disable: on performance.client-io-threads: off server.allow-insecure: on Please let me know if you need any more configuration info or hardware specs. best, Lyubo