[jira] [Created] (CLOUDSTACK-2108) UI changes for support Storage XenMotion

["Srikanteswararao Talluri (JIRA)" <ji...@apache.org>]

Srikanteswararao Talluri created CLOUDSTACK-2108:
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             Summary: UI changes for  support Storage XenMotion 
                 Key: CLOUDSTACK-2108
                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-2108
             Project: CloudStack
          Issue Type: Bug
      Security Level: Public (Anyone can view this level - this is the default.)
          Components: UI
    Affects Versions: 4.2.0
            Reporter: Srikanteswararao Talluri
             Fix For: 4.2.0


https://cwiki.apache.org/confluence/display/CLOUDSTACK/Enabling+Storage+XenMotion+for+XenServer#EnablingStorageXenMotionforXenServer-FeatureSpecification

-    Changes required in UI for live migrating a volume from one storage pool to another.
 1.       UI needs to be updated to allow migration of a volume even if it is attached to a running vm.
 2.      UI will be updated to make a listStoragePoolsForMigration call for volumes; root or datadisk; to get the list of storage pools available.
 3.       For live migrating a volume, migrateVolume call will be made with volumeid, storageid passed as a parameter. The livemigrate parameter should also be set to true.
 -   Changes required in UI for live migrating an instance along with its volume.
 1.       Currently UI makes a listHosts api call with virtualmachineid as a parameter to get the list of hosts to which a vm can be migrated.
  2.      UI will be instead updated to make a listHostsForMigration call.
  3.      If migration of an instance to a host requires storage motion; as indicated in the response object by the requiresStorageMotion field; UI will make a migrateVirtualMachineWithVolume api call. The virtual machine id and host id are passed as the parameters.

Challenges I see here are : 

1. This is a hypervisor specific feature: XenServer6.1, Hence, we need to be carefule while dealing with VMs on other hypervisors

feature tracking bug for Storage XenMotion: https://issues.apache.org/jira/browse/CLOUDSTACK-659
It is yet to be checked in.


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