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{\*\bkmkstart BM_BEGIN}\pard\plain\f0{\fs20 Hello community,\line
\line
is there anyone out there using CloudStack in combination with Ceph?\line
What are your experiences or use cases with snapshot's?\line
\line
Your feedback is appreciate.\line
\line
Regards,\line
Ingo\line
\line
-Original Message-\line
From: Stock, Alexander \line
Sent: Dienstag, 2. April 2019 11:08\line
To: users@cloudstack.apache.org\line
Subject: Ceph Snapshot Backups\line
\line
Hi Everyone,\line
\line
\line
some time ago we evaluated the snapshot features from Cloudstack for the
combination Ceph + KVM + Cloudstack and found some space for improvements.\line
Our goal is to provide snapshot backup for our customers which is easy to
handle over the Cloudstack API and provides incremental/differential
features.\line
\line
We recognised that Cloudstack uses qemu-convert to extract the data from the
raw device.\line
This means that every time a backup gets triggered 100 % of the used data gets
transferred to the secondary storage and not just the delta.\line
For big volumes (500GB to TB volumes) which are highly used, the backup process
can last very long and uses much space on the secondary side.\line
>From our side it would be nice to have a differential and/or incremental
>backup feature for our Ceph volumes.\line
\line
So we took a look around and found this as a possible solution:
https://smex12-5-en-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=http%3a%2f%2fwww.backy2.com=7432fd1e-8f5e-46b9-baa4-273ddd62e3c4=b99d0007cfff65e3b95b9dd26b369f7ce0a2b6f1-a893b29523305f5294e5c68afec4a2a6cb35626a
This is a python tool which can do differential backups from Ceph snapshots
and store them on a filesystem or in an S3 Storage.\line
Sadly there is no REST API for this tool which makes the management of it a
little bit inconvenient.\line
We were wondering if this tool, some parts of its functionality or the main
approach of it could be integrated into Cloudstack to improve the snapshot
functionality.\line
\line
I checked the Github issues and did not find any similar tickets for that.\line
So maybe here are more people who needs this functionality or have already some
solutions for this.\line
\line
BR\line
Alexander\line
\line
}}
