Mike, XenServer 6.2 + SP1 + XS62ESP1004 hotfix and the versions after support a new API that allows CloudStack to copy the deltas between two snapshots. With that addition, CloudStack no longer needed the plugin scripts because that's what the plugin scripts were mainly for. Don't try to backport this to code prior to 6.2 or even plain vanilla 6.2 itself, it won't work as that API is not there.
In CloudStack source code, we refer to this XenServer combination as XenServer6.25 to indicate the significance of the change. There's no official XenServer 6.25 version. --Alex On Tue, Nov 4, 2014 at 5:22 PM, Mike Tutkowski <mike.tutkow...@solidfire.com > wrote: > Hi, > > In XenServerStorageProcessor there are several times when we make calls to > XenServer plug-ins (for example, to download a template from secondary > storage to a XenServer SR). > > In Xenserver625StorageProcessor we seem to handle this kind of work in Java > code instead of calling into the XenServer plug-ins. > > I was curious if anyone remembers the history behind this transition? > > Thanks! > > -- > *Mike Tutkowski* > *Senior CloudStack Developer, SolidFire Inc.* > e: mike.tutkow...@solidfire.com > o: 303.746.7302 > Advancing the way the world uses the cloud > <http://solidfire.com/solution/overview/?video=play>*™* >