Super! Thanks Ilya!
Tony
________________________________________
From: Ilya Dryomov <idryomov@xxxxxxxxx>
Sent: July 13, 2023 01:30 PM
To: Tony Liu
Cc: dev@xxxxxxx; ceph-users@xxxxxxx
Subject: Re: [ceph-users] resume RBD mirror on another host
On Thu, Jul 13, 2023 at 10:23 PM Ilya Dryomov <idryomov@xxxxxxxxx> wrote:
>
> On Thu, Jul 13, 2023 at 6:16 PM Tony Liu <tonyliu0592@xxxxxxxxxxx> wrote:
> >
> > Hi,
> >
> > How RBD mirror tracks mirroring process, on local storage?
> > Say, RBD mirror is running on host-1, when host-1 goes down,
> > start RBD mirror on host-2. In that case, is RBD mirror on host-2
> > going to continue the mirroring?
>
> Hi Tony,
>
> No, it's tracked on the RBD image itself -- meaning in RADOS.
To be clear, "no" here was meant to answer the "How RBD mirror
tracks mirroring process, on local storage?" question.
To answer the second question explicitly: yes, rbd-mirror daemon on
host-2 will continue mirroring from where rbd-mirror daemon on host-1
left off.
Thanks,
Ilya
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