<div dir="ltr">Thank <span style="color:rgb(31,31,31);font-size:0.875rem;font-weight:bold;font-family:"Google Sans",Roboto,RobotoDraft,Helvetica,Arial,sans-serif;white-space:nowrap">Christian, I will try to follow it.</span><div><span style="color:rgb(31,31,31);font-size:0.875rem;font-weight:bold;font-family:"Google Sans",Roboto,RobotoDraft,Helvetica,Arial,sans-serif;white-space:nowrap"> </span></div><div><font color="#1f1f1f" face="Google Sans, Roboto, RobotoDraft, Helvetica, Arial, sans-serif"><span style="font-size:14px;white-space:nowrap"><b>Hello </b></span></font>
Eugen,</div><div><span style="color:rgb(31,31,31);font-family:"Google Sans",Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:14px;white-space:nowrap"><font color="#222222" face="Arial, Helvetica, sans-serif" size="2"><span style="white-space:normal">I use SAN to back our openstack services and I planned to use NFS for Cinder backup. Because of that, We separate tenants for different departments. So they can back up by themself. Thank you for your sharing.<br></span></font></span><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Nguyen Huu Khoi<br></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Mar 13, 2023 at 11:11 PM Christian Rohmann <<a href="mailto:christian.rohmann@inovex.de">christian.rohmann@inovex.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hey there,<br>
<br>
On 06/03/2023 22:34, Nguyễn Hữu Khôi wrote:<br>
><br>
> I am looking for instance backup solution. I am using Cinder backup <br>
> with nfs backup but it looks not too fast. I am using a 10Gbps <br>
> network. I would like to know experience for best practice for <br>
> instance backup solutions on Openstack.<br>
<br>
<br>
On 13/03/2023 12:46, Eugen Block wrote:<br>
> We use Ceph as back end for all services (nova, glance, cinder), and <br>
> the most important machines are backed up by our backup server <br>
> directly via rbd commands: <br>
<br>
There is RBD and "the other" drivers. While RBD uses the native export / <br>
import feature of Ceph, all other drivers (file, NFS, object storages <br>
like S3) are based on the abstract chunked driver<br>
(<a href="https://opendev.org/openstack/cinder/src/branch/master/cinder/backup/chunkeddriver.py" rel="noreferrer" target="_blank">https://opendev.org/openstack/cinder/src/branch/master/cinder/backup/chunkeddriver.py</a>).<br>
This driver reads the volume / image and treats it as chunks before <br>
making use of a concrete driver (e.g. NFS or S3) to send those chunks <br>
off somewhere to be stored. Restore works just the opposite way. The <br>
performance of the chunked driver based back-ends is not (yet) <br>
comparable to what RBD can achieve due to various reasons.<br>
<br>
But again, while "RBD" uses Ceph's mechanisms internally all other <br>
"targets" for backup storage work differently.<br>
We ourselves were looking into using and S3-compatible storage and thus <br>
I started a dicsussion about the state of those other drivers at <br>
<a href="https://lists.openstack.org/pipermail/openstack-discuss/2022-September/030263.html" rel="noreferrer" target="_blank">https://lists.openstack.org/pipermail/openstack-discuss/2022-September/030263.html</a><br>
<br>
This then led to a discussion at the Cinder PTG <br>
<a href="https://etherpad.opendev.org/p/antelope-ptg-cinder#L119" rel="noreferrer" target="_blank">https://etherpad.opendev.org/p/antelope-ptg-cinder#L119</a> with many <br>
observations.<br>
<br>
There also are changes in the works, like restore into sparse volumes <br>
(<a href="https://review.opendev.org/c/openstack/cinder/+/852654" rel="noreferrer" target="_blank">https://review.opendev.org/c/openstack/cinder/+/852654</a>) when going via <br>
the chunked driver.<br>
But also features like "encryption" <br>
(<a href="https://review.opendev.org/c/openstack/cinder-specs/+/862601" rel="noreferrer" target="_blank">https://review.opendev.org/c/openstack/cinder-specs/+/862601</a>) are being <br>
discussed.<br>
<br>
<br>
<br>
Regards<br>
<br>
<br>
Christian<br>
<br>
</blockquote></div>