Hello.

I just summary for who looking this information likes me

My problem can be addressed via cinder active-active. It will work if a cinder driver supports it.

This is an example for CEPH and Koll-Ansible as Openstack Deployment tool.

/etc/kolla/config/cinder.conf

[DEFAULT]

cluster = ceph

/etc/kolla/globals.yml

enable_redis: "yes"

https://opendev.org/openstack/kolla-ansible/commit/d72500c6ff6c378e044c381edc9c8a0d32159856

cinder-manage update_host from @Tobias Urdin will be helpful if we change cinder-volume service to another host when we want to replace or change storage nodes.

Nguyen Huu Khoi

On Mon, Jul 22, 2024 at 3:31 PM Nguyễn Hữu Khôi <nguyenhuukhoinw@gmail.com> wrote:

Thank you for the information! :)

On Mon, Jul 22, 2024, 2:59 PM Sang Tran Quoc <SangTQ8@fpt.com> wrote:

Greeting,

Cinder-volume host-group may help you this case , all cinder-volume service will expose same service hostname instead of cinder node’s hostname, you should check reference best practice of tripleO deployment for cinder-volume e.g. https://access.redhat.com/solutions/3524681

Thanks & Best Regards

Sang Tran Quoc (Mr.)

FPT Smart Cloud
FPT Tower, 10 Pham Van Bach Str., Cau Giay Dist., Ha Noi, Viet Nam
E: sangtq8@fpt.com

T: 0962949843
W: https://fptcloud.com | https://fpt.ai

From: Nguyễn Hữu Khôi <nguyenhuukhoinw@gmail.com>
Sent: Monday, July 22, 2024 11:12 AM
To: OpenStack Discuss <openstack-discuss@lists.openstack.org>
Subject: Re: [cinder] How extend volume if cinder-volume host down

Hello.

After google then I understand we need cinder active active.

Nguyen Huu Khoi

On Sun, Jul 21, 2024 at 9:41 PM Nguyễn Hữu Khôi <nguyenhuukhoinw@gmail.com> wrote:

Hello guys.

Every volume was managed by a specified host. When this host was down or removed. How Can I extend this volume which was managed by this host? I would like to know if we have a solution for this case?

Nguyen Huu Khoi