从模板克隆时如何将磁盘添加到VM？

Question

我已经找到了pyvmomi示例，介绍了如何将磁盘添加到已存在的VM中，但我希望自定义VM模板，然后进行克隆。设置CPU和内存是非常简单的，但是在现有模板中添加一个或多个磁盘（从引导磁盘中删除）让我无法理解

# Add an additional 200 GB disk
new_disk_kb = int(20) * 1024 * 1024
disk_spec = vim.vm.device.VirtualDeviceSpec()
disk_spec.fileOperation = "create"
disk_spec.operation = vim.vm.device.VirtualDeviceSpec.Operation.add
disk_spec.device = vim.vm.device.VirtualDisk()
disk_spec.device.backing = vim.vm.device.VirtualDisk.RawDiskMappingVer1BackingInfo()
disk_spec.device.backing.diskMode = 'persistent'
disk_spec.device.unitNumber = 3
disk_spec.device.capacityInKB = new_disk_kb

# vm configuration
vmconf = vim.vm.ConfigSpec()
vmconf.numCPUs = 8            # change the template's cpus from 4 to 8
vmconf.memoryMB = 16 * 1024   # change the template's memory from 4 GB to 16 GB
# change the template's disks from
#    1 250 GB boot, 1 x 200 GB disk
# to 
#    1 250 gB boot, 2 x 200 GB disks
vmconf.deviceChange = [ disk_spec ]  # something is not right
                               
clonespec = vim.vm.CloneSpec()
clonespec.location = relospec
clonespec.powerOn = True
clonespec.config = vmconf
clonespec.customization = customspec
task = template.Clone(folder = destfolder, name = vmname, spec = clonespec)

代码在没有vmconf.deviceChange的情况下工作。一旦我尝试添加磁盘，我就会看到错误

Invalid configuration for device '0'.

或

Incompatible device backing specified for device '0'.

Answer 1

我刚刚遇到了向vm添加RDM磁盘的问题

问题是：

disk_spec.device.backing=vim.vm.device.VirtualDisk.RawDiskMappingVer1BackingInfo（）

您需要为您的规范提供backing.deviceName和backing.lunUuid。之后就可以使用了。我很自信，因为我看到了完全相同的错误消息，它为我修复了它

您可以从host.config.storageDevice.scsiLun获取感兴趣lun的lun uuid和deviceName