Skip to content

libvirt_manager: support SCSI alongside virtio#3271

Merged
amartyasinha merged 1 commit intoopenstack-k8s-operators:mainfrom
bogdando:scsi
Sep 16, 2025
Merged

libvirt_manager: support SCSI alongside virtio#3271
amartyasinha merged 1 commit intoopenstack-k8s-operators:mainfrom
bogdando:scsi

Conversation

@bogdando
Copy link
Contributor

@bogdando bogdando commented Sep 8, 2025

Add optional SCSI bus support for the root and extra disks in libvirt manager role.

For OCP VMs, scsi could provide better performance, especially in SNO layout.

Add optional SCSI bus support for the root and extra disks
in libvirt manager role.

For OCP VMs, scsi could provide better performance, especially
in SNO layout.

Signed-off-by: Bohdan Dobrelia <bdobreli@redhat.com>
@bogdando bogdando requested a review from a team as a code owner September 8, 2025 11:26
@openshift-ci
Copy link
Contributor

openshift-ci bot commented Sep 8, 2025

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:

The full list of commands accepted by this bot can be found here.

Details Needs approval from an approver in each of these files:

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

@danpawlik
Copy link
Contributor

From my local tests, virtio gives better performance when hypervisor have ext4 or xfs. When btrfs, virtio is very slow.
Never check why it is so, but I spend some time to run SNO locally and the root cause goes to btrfs and fio like 15k IOPS average 75MB/s, where on ext4 was like 200k IOPS or something like that.

@amartyasinha amartyasinha merged commit 492cd56 into openstack-k8s-operators:main Sep 16, 2025
5 checks passed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Projects

None yet

Development

Successfully merging this pull request may close these issues.

3 participants