On Thu, Oct 8, 2020, 12:28 luwen.zhang@vinchin.com <luwen.zhang@vinchin.com> wrote:

Dear team,

My name is Luwen Zhang from Vinchin Backup & Recovery.

I'm sending you this Email because our developers encountered some problems while developing incremental backup feature following the oVirt documentations.
https://www.ovirt.org/documentation/incremental-backup-guide/incremental-backup-guide.html

We downloaded oVirt 4.4.1 from oVirt website, and is now developing based on this version, as per the documentation when we perform the first time full backup, we should obtain a "checkpoint id", so when we perform incremental backup using this ID we should know what's have changed on the VM. But now the problem is that we cannot get the checkpoint ID.

The components and versions of oVirt are as follows:

You are using qemu 4.2 and libvirt 6.0. These versions are too old, missing some features or have bugs which will not be fixed. These version maya be good enough for development, but your product will need newer version.

We require now libvirt 6.6 and qemu 5.1. These versions will be available in CentOS 8.3.

On libvirt, incremental backup will be fully supported only in RHEL AV 8.3.1. I guess we will build the relevant version for CentOS after this version is released for RHEL.

Nir

Could you please kindly check on this issue and point out what should be wrong and what we should do?

Looking forward to your reply.

Thanks & regards!

Luwen Zhang | Product Manager

Tel: +86-28-8553-0156
Mob: +86-138-8042-4687
Skype: luwen.zhang_cn
E-mail: luwen.zhang@vinchin.com

F5, Block 8, National Information Security Industry Park, No.333 YunHua Road, Hi-Tech Zone, Chengdu, China | P.C.610015

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