+1 hypervisor_capabilities table is intended for this purpose.
--Alex > -----Original Message----- > From: Devdeep Singh [mailto:devdeep.si...@citrix.com] > Sent: Wednesday, December 19, 2012 9:57 PM > To: cloudstack-dev@incubator.apache.org > Subject: RE: [DISCUSS] Enabling storage xenmotion on xenserver 6.1 > > Hi Jerry, > > I don't think we need an option for "support storage motion" when adding a > cluster. A cluster is made of homogenous hosts and cloudstack is already > aware of the version of the hypervisor running on them. From the version it > can infer if the storage motion is supported on it. One way to do it would be > to update the hypervisor_capabilities table in db and have a field for > storage_motion_supported in it. If for a particular hypervisor version the > field is true, cloudstack will allow storage motion. > > What do you think? > > Regards, > Devdeep > > > -----Original Message----- > > From: jerry jiang. 蒋维 [mailto:jerry.ji...@tyxtech.com] > > Sent: Thursday, December 20, 2012 6:52 AM > > To: cloudstack-dev@incubator.apache.org > > Subject: Re: [DISCUSS] Enabling storage xenmotion on xenserver 6.1 > > > > Hi Devdeep, > > > > Shall we need to add an option -- "support storage motion" when adding a > > cluster against one type of hypervisor, or add something in the global > config. > > > > Jerry > > > > ----- Original Message ----- > > From: "Devdeep Singh" <devdeep.si...@citrix.com> > > To: cloudstack-dev@incubator.apache.org > > Sent: 星期三, 2012年 12 月 19日 下午 5:03:34 > > Subject: RE: [DISCUSS] Enabling storage xenmotion on xenserver 6.1 > > > > Hi Alex, > > > > I was planning to cover the following scenarios: > > 1. Live migrate a VM with disks from Host A to Host B within the same > cluster. > > This currently works with shared storage. I was thinking of extending it to > > support local storage too. > > 2. Live migrate a VM from Host A to Host B across cluster. VM's disks also > > move from one storage repository to another. > > 3. Live migrate a VM's disks from one storage repository to another, but > VM > > stays in the same host. I didn't make it clear in my earlier mail, sorry > > about > > that. Should it be a separate jira ticket? > > > > For each of them the disk offerings for each disk should be honored. That > > is, > if > > a disk is using shared storage it should be moved to a shared SR. Same > applies > > to disks using local storage too. > > > > Regards, > > Devdeep > > > > > -----Original Message----- > > > From: Alex Huang [mailto:alex.hu...@citrix.com] > > > Sent: Wednesday, December 19, 2012 4:56 AM > > > To: cloudstack-dev@incubator.apache.org > > > Subject: RE: [DISCUSS] Enabling storage xenmotion on xenserver 6.1 > > > > > > Devdeep, > > > > > > It sounds like from this that all you're doing is the ability to live > > > migrate vms from one cluster to another cluster. > > > > > > Is there anything on storage migration itself? > > > > > > --Alex > > > > > > > -----Original Message----- > > > > From: Devdeep Singh [mailto:devdeep.si...@citrix.com] > > > > Sent: Tuesday, December 18, 2012 12:40 AM > > > > 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
