The whole point of the original PR was to optionally disable this functionality.
We don't expose views of the backup state to our customers (we have our own customer interfaces) and it's a large waste of space for us to be backing up tons of VM images when we have a solid primary storage infrastructure that already has lots of resiliency. I guess we're going to have to revisit this again before we can consider rebasing on 4.11. ________________________________ From: Suresh Kumar Anaparti <sureshkumar.anapa...@gmail.com> Sent: Thursday, May 17, 2018 2:21 PM To: dev Subject: Re: Snapshots only on Primary Storage feature Hi Si, No. not possible to disable the backup to secondary. It copies the volume snapshot to secondary in a background thread using asyncBackup param (set to true) and allows other operations during that time. I understand that the backup was on demand when any operations are performed on the snapshot. But, backup during that time may take considerable time (depending on the snapshot size and the network bandwidth), which can result in the job timeout and the User may assume that it is already Backed up based on its state, unless it is documented. -Suresh On Fri, May 18, 2018 at 12:23 AM, Simon Weller <swel...@ena.com.invalid> wrote: > Suresh, > > > With this new merged PR, is it possible to disable the backup to > secondary completely? I can't tell from the reference spec and we're not on > a 4.10/4.11 base yet. > > For the record, in the instances where a volume or template from snapshot > was required, the backup image was copied on demand to secondary. > > In an ideal world, secondary storage wouldn't even be involved in most of > these options, instead using the native clone features of the underlying > storage. > > > - Si > > ________________________________ > From: Suresh Kumar Anaparti <sureshkumar.anapa...@gmail.com> > Sent: Thursday, May 17, 2018 1:37 PM > To: dev@cloudstack.apache.org > Cc: Nathan Johnson > Subject: Re: Snapshots only on Primary Storage feature > > Hi Glen / Si, > > In PR# 1697, the global setting *snapshot.backup.rightafter* if set to > true, it'll be the default behaviour and snapshot is copied to the > secondary storage. If set to false, then the snapshot state transitions are > mocked and Snapshot would be in BackedUp state even though it is not really > in Secondary storage, which doesn't make sense. Also, that will enable to > create a volume or template from the snapshot, which will obviously fail. > > This behavior was changed with the PR > https://github.com/apache/cloudstack/pull/2081. There is a clear > separation > of create and backup volume snapshot operations. The global setting > *snapshot.backup.rightafter* has been removed in PR# 2081. > > -Suresh > > On Thu, May 17, 2018 at 8:40 PM, Simon Weller <swel...@ena.com.invalid> > wrote: > > > Glen, > > > > > > This feature was implemented in 4.9 by my colleague Nathan Johnson. You > > enable it by changing the global setting snapshot.backup.rightafter to > > false. > > > > > > The PR is reference here: https://github.com/apache/cloudstack/pull/1697 > > > > > > We have the exact same use case as you, as we also use Ceph. > > > > > > - Si > > > > > > ________________________________ > > From: Glen Baars <g...@onsitecomputers.com.au> > > Sent: Thursday, May 17, 2018 9:46 AM > > To: dev@cloudstack.apache.org > > Subject: Snapshots only on Primary Storage feature > > > > > > Hello Devs, > > > > > > > > I have been thinking about a feature request and want to see what people > > think about the use case. > > > > > > > > We use KVM + Ceph RBD as storage. > > > > > > > > Currently, when a client takes a snapshot, Cloudstack takes a Ceph > > snapshot and then uses qemu-img to export to secondary storage. This > > creates a full backup of the server. Clients want to use this as a daily > > snapshot and it isn’t feasible due to the space requirements. > > > > > > > > We would like create the snapshot only on primary storage. It is > > replicated offsite and fault tolerant. I can see that the download > snapshot > > and create template features may be an issue. > > > > > > > > I have seen the below features in the recent releases and wondered if > this > > was the direction that the development was going. > > > > Separation of volume snapshot creation on primary storage and backing > > operation on secondary storage. > > > > Bypass secondary storage template copy/transfer for KVM. > > > > Kind regards, > > > > Glen Baars > > > > BackOnline Manager > > > > > > > > T 1300 733 328 / +61 8 6102 3276 > > > > NZ +64 9280 3561 > > > > > > > > www.timg.com<http://www.timg.com/> > > > > [http://images.dbonline.com.au/images/fb.png] Facebook< > > https://www.facebook.com/TheInformationManagementGroup> [ > > http://images.dbonline.com.au/images/li.png] LinkedIn< > http://www.linkedin. > > com/company/the-information-management-group?trk=hb_tab_ > compy_id_2724246> > > > > > > > > Watch a short video about what we do!<https://www.youtube.com/ > > watch?v=scLGLwSIFQc> > > > > [http://images.dbonline.com.au/images/timgv3.jpg]<https://goo.gl/eAHLO7> > > > > This e-mail may contain confidential and/or privileged information.If you > > are not the intended recipient (or have received this e-mail in error) > > please notify the sender immediately and destroy this e-mail. Any > > unauthorized copying, disclosure or distribution of the material in this > > e-mail is strictly forbidden. > > > > > > > > This e-mail is intended solely for the benefit of the addressee(s) and > any > > other named recipient. It is confidential and may contain legally > > privileged or confidential information. If you are not the recipient, any > > use, distribution, disclosure or copying of this e-mail is prohibited. > The > > confidentiality and legal privilege attached to this communication is not > > waived or lost by reason of the mistaken transmission or delivery to you. > > If you have received this e-mail in error, please notify us immediately. > > >
