Hi Anthony, I meant to say that storage xenmotion works with a snapshot. I haven't tried it with multiple snapshots. Sorry, for the confusion.
In my test I had created a snapshot of root-disk through CS UI and migrated the vm to another host using a different storage pool. Storage xenmotion works in this scenario. Regards, Devdeep > -----Original Message----- > From: Anthony Xu [mailto:xuefei...@citrix.com] > Sent: Friday, January 18, 2013 7:19 AM > To: cloudstack-dev@incubator.apache.org > Subject: RE: [DISCUSS] Enabling storage xenmotion on xenserver 6.1 > > Devdeep, > > You mentioned one limitation of xenmotion is it only allows one snapshot. In > your below test, can you create a root-disk snapshot from CS UI before do > xenmetion, see if it works? > > > Thanks, > Anthony > > > -----Original Message----- > > From: Edison Su [mailto:edison...@citrix.com] > > Sent: Thursday, January 17, 2013 5:28 PM > > To: cloudstack-dev@incubator.apache.org > > Subject: RE: [DISCUSS] Enabling storage xenmotion on xenserver 6.1 > > > > > > > > > -----Original Message----- > > > From: Devdeep Singh [mailto:devdeep.si...@citrix.com] > > > Sent: Wednesday, January 16, 2013 2:44 AM > > > To: cloudstack-dev@incubator.apache.org > > > Subject: RE: [DISCUSS] Enabling storage xenmotion on xenserver 6.1 > > > > > > Hi Anthony, > > > > > > I tried storage xenmotion for two VMs created from the same template > > and > > > here is what I observed. > > > > > > Initially, the template and root disks tree looks as follows > > > ______ Template > > > | > > > Base-Disk.vhd ----------- VM1 - Root Disk > > > |_________VM2-Root Disk > > > > > > After xenmotion of both the volumes of the vm to another primary > > store, > > > the two virtual disks for the two VMs do not share the base disk > > > Base-Disk1.vhd------VM1 - Root Disk > > > Base-Disk2.vhd------VM2 - Root Disk > > > > > > So, after storage xenmotion, each root disk has a copy of the base > > disk in the > > > destination storage pool. Is this an issue? > > Waste space(each disk will have its own base disk, instead of > > sharing), and base disk clean up will be an issue(as there is no > > cloudstack db entry to track this new base disks). > > > > > > > > > > Regards, > > > Devdeep > > > > > > > -----Original Message----- > > > > From: Anthony Xu [mailto:xuefei...@citrix.com] > > > > Sent: Wednesday, January 09, 2013 7:21 AM > > > > To: cloudstack-dev@incubator.apache.org > > > > Subject: RE: [DISCUSS] Enabling storage xenmotion on xenserver 6.1 > > > > > > > > I assume clone is a kind of snapshot in the term of VHD chain, > > > > Does XenMotion has same restrictions on clone? > > > > > > > > For fast provision, right now , on XenServer, root disk is cloned > > from > > > template. > > > > Before any snapshot, root disk is already a VHD with parent VHD > > which > > > > is template, do you know if this has any impact for XenMotion ? > > > > > > > > > > > > Anthony > > > > > > > > > -----Original Message----- > > > > > From: Hari Kannan [mailto:hari.kan...@citrix.com] > > > > > Sent: Tuesday, January 08, 2013 5:44 PM > > > > > To: cloudstack-dev@incubator.apache.org > > > > > Subject: RE: [DISCUSS] Enabling storage xenmotion on xenserver > > 6.1 > > > > > > > > > > Hi Devdeep, > > > > > > > > > > Can you please elaborate on the restrictions, if any on > > > > > XenMotion implementation when a volume has snapshots? > > > > > > > > > > Hari > > > > > > > > > > -----Original Message----- > > > > > From: Devdeep Singh [mailto:devdeep.si...@citrix.com] > > > > > Sent: Wednesday, December 26, 2012 4:44 AM > > > > > To: cloudstack-dev@incubator.apache.org > > > > > Subject: RE: [DISCUSS] Enabling storage xenmotion on xenserver > > 6.1 > > > > > > > > > > I have created an initial draft of the FS here > > > > > > > > https://cwiki.apache.org/confluence/display/CLOUDSTACK/Enabling+Stor > > > > > ag > > > > > e > > > > > +XenMotion+for+XenServer. I'll keep updating it based on > > discussion > > > > > +XenMotion+for+and > > > > > comments. > > > > > > > > > > Regards, > > > > > Devdeep > > > > > > > > > > > -----Original Message----- > > > > > > From: Devdeep Singh [mailto:devdeep.si...@citrix.com] > > > > > > Sent: Tuesday, December 18, 2012 2:10 PM > > > > > > To: cloudstack-dev@incubator.apache.org > > > > > > Subject: [DISCUSS] Enabling storage xenmotion on xenserver 6.1 > > > > > > > > > > > > Hi, > > > > > > > > > > > > XenServer introduced support for Storage XenMotion in the > > latest > > > > > > version (6.1). Storage XenMotion allows VMs to be moved from > > one > > > > > > host to another, where the VMs are not located on storage > > shared > > > > > > between the two hosts. It provides the option to live migrate > > > > > > a VM's disks along with the VM itself. It is now possible to > > migrate > > > > > > a VM from one resource pool to another, or to migrate a VM > > whose > > > > > > disks are on local storage, or even to migrate a VM's disks > > from > > > > > > one storage repository to another, all while the VM is running. > > > > > > More information on Storage > > > > > XenMotion can be found at [1]. > > > > > > > > > > > > I have filed a jira request [2] to track this feature. I plan > > to > > > > > > extend the migrate vm cloudstack api call to allow migration > > > > > > of instances across clusters. Do let me know your comments. > > > > > > > > > > > > [1] http://blogs.citrix.com/2012/08/24/storage_xenmotion/ > > > > > > [2] https://issues.apache.org/jira/browse/CLOUDSTACK-659 > > > > > > > > > > > > Regards, > > > > > > Devdeep
