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(Updated Sept. 29, 2013, 3:40 a.m.) Review request for cloudstack, edison su and Mike Tutkowski. Changes ------- Updated notes Repository: cloudstack-git Description (updated) ------- With custom storage plugins comes the need to prep the KVM host prior to utilizing the disks. e.g. an iscsi initiator needs to log into the target and scan for the lun before it can be used on the host. This patch is an example I developed against 4.2, minor changes may be necessary to apply to master, but I want to share with others who are working on storage so they can ensure it works for them. Please tweak as you see fit. MigrateCommand: pass vmTO object so we can see which disks/storage pool types belong to the vm when migrating a VM. This facilitates being able to call disconnectPhysicalDisksViaVmSpec VirtualMachineManagerImpl: pass VirtualMachineTO when migrating so that we can see which disks belong to the VM and what storage pools/adaptors should be used LibvirtComputingResource: add calls KVMStoragePoolManager's connectPhysicalDiskViaVmSpec and disconnectPhysicalDiskViaVmSpec calls where appropriate (when starting a vm, migrating a vm). Ensure that we create 'raw' format XML disk definitions when the storage format is RAW. Move cleanupDisk logic to storage adaptors so that each adaptor type can clean up its disks in is own way. KVMStoragePoolManager: add connectPhysicalDisk, disconnectPhysicalDisk, connectPhysicalDiskViaVmSpec, disconnectPhysicalDiskViaVmSpec, disconnectPhysicalDiskByPath. These all call the specific StorageAdaptor's connectPhysicalDisk, disconnectPhysicalDisk, or disconnectPhysicalDiskByPath calls. KVMStorageProcessor: Call connectPhysicalDisk/disconnectPhysicalDisk on the storage adaptor. Whether or not this is implemented is up to the storage adaptor. LibvirtStorageAdaptor: implement dummy connectPhysicalDisk/disconnectPhysicalDisk, move cleanupDisk logic from LibvirtComputingResource to disconnectPhysicalDiskByPath StorageAdaptor: define connectPhysicalDisk/disconnectPhysicalDisk/disconnectPhysicalDiskByPath in the interface Diffs ----- core/src/com/cloud/agent/api/MigrateCommand.java 5042b8c plugins/hypervisors/kvm/src/com/cloud/hypervisor/kvm/resource/LibvirtComputingResource.java 3ee811f plugins/hypervisors/kvm/src/com/cloud/hypervisor/kvm/storage/KVMStoragePoolManager.java e09c9ba plugins/hypervisors/kvm/src/com/cloud/hypervisor/kvm/storage/KVMStorageProcessor.java c69f9b0 plugins/hypervisors/kvm/src/com/cloud/hypervisor/kvm/storage/LibvirtStorageAdaptor.java 123a9f1 plugins/hypervisors/kvm/src/com/cloud/hypervisor/kvm/storage/StorageAdaptor.java 4956d8d server/src/com/cloud/vm/VirtualMachineManagerImpl.java d46bbb0 Diff: https://reviews.apache.org/r/14381/diff/ Testing ------- Basic testing with my storage adaptor Thanks, Marcus Sorensen
