Cool. Bin gespannt ob sich jemand meldet. VG Ingo
> Am 02.04.2019 um 11:14 schrieb Stock, Alexander > <alexander.st...@itelligence.de>: > > Hi Everyone, > > > some time ago we evaluated the snapshot features from Cloudstack for the > combination Ceph + KVM + Cloudstack and found some space for improvements. > Our goal is to provide snapshot backup for our customers which is easy to > handle over the Cloudstack API and provides incremental/differential features. > > We recognised that Cloudstack uses qemu-convert to extract the data from the > raw device. > 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. > 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. > From our side it would be nice to have a differential and/or incremental > backup feature for our Ceph volumes. > > So we took a look around and found this as a possible solution: > http://www.backy2.com/ > This is a python tool which can do differential backups from Ceph snapshots > and store them on a filesystem or in an S3 Storage. > Sadly there is no REST API for this tool which makes the management of it a > little bit inconvenient. > 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. > > I checked the Github issues and did not find any similar tickets for that. > So maybe here are more people who needs this functionality or have already > some solutions for this. > > BR > Alexander >
