2019-05-22

Nutanix AHV 匯出虛擬機

最後更新: 2019-09-16 04:55 pm

前言

Nutanix Prism並沒有做匯出的功能，其VMDisk也是不可見的，聽說早期是應美國國防部的要求，所以需要使用aCLI並用qemu-img匯出

找出vDisk UUID

登入CVM後用aCLI查找，VM必須為關閉狀態

$ acli vm.list power_state=off
VM name                VM UUID
Nvidia License Server  e0224f1e-1ed3-4f4b-ab9e-478100c5146c    ###此台為本次要匯出的虛擬機###

$ acli vm.list power_state=off

VM name VM UUID

Nvidia License Server e0224f1e-1ed3-4f4b-ab9e-478100c5146c ###此台為本次要匯出的虛擬機###

用aCLI檢視VM詳細資訊找出VMDisk UUID

$ acli vm.get e0224f1e-1ed3-4f4b-ab9e-478100c5146c include_vmdisk_paths=1
Nvidia License Server {
  config {
    agent_vm: False
    allow_live_migrate: True
    boot {
      device {
        disk_addr {
          bus: "scsi"
          index: 0
        }
      }
    }
    disk_list {
      addr {
        bus: "sata"
        index: 0
      }
      cdrom: True
      device_uuid: "62772fe2-d1dc-4ff6-b6e1-0d8ac5e41dc7"
      empty: True
      naa_id: "naa.6506b8dc77cd0c62b11a39833f8b4a9c"
    }
    disk_list {
      addr {
        bus: "scsi"
        index: 0
      }
      container_id: 1072
      container_uuid: "08fb0789-45ea-4a1d-8039-1c9926d78f8d"
      device_uuid: "975aff11-d2ea-4de6-b6a7-125a87f6992b"
      naa_id: "naa.6506b8d407bbe66324c910ac88c5bfea"
      source_vmdisk_uuid: "6cc2214f-188e-4f4d-8516-f975ab3110a4"
      vmdisk_nfs_path: "/NXContainer/.acropolis/vmdisk/6d9eb1db-a258-445f-88e2-e275138fe880" ###我們要找的路徑###
      vmdisk_size: 21474836480
      vmdisk_uuid: "6d9eb1db-a258-445f-88e2-e275138fe880"    ###我們要找的VMDisk UUID###
      
    }
    hwclock_timezone: "Asia/Taipei"
    machine_type: "pc"
    memory_mb: 4096
    name: "Nvidia License Server"
    nic_list {
      connected: True
      mac_addr: "50:6b:8d:b3:5a:9c"
      network_name: "default"
      network_type: "kNativeNetwork"
      network_uuid: "9b5e437f-72ec-40cc-91b1-fff4f840c547"
      type: "kNormalNic"
      uuid: "57f3936a-8860-400e-b8e7-8aaa2dd24182"
      vlan_mode: "kAccess"
    }
    num_cores_per_vcpu: 1
    num_threads_per_core: 1
    num_vcpus: 2
    num_vnuma_nodes: 0
    vga_console: True
    vm_type: "kGuestVM"
  }
  logical_timestamp: 10
  state: "kOff"
  uuid: "e0224f1e-1ed3-4f4b-ab9e-478100c5146c"
}

$ acli vm.get e0224f1e-1ed3-4f4b-ab9e-478100c5146c include_vmdisk_paths=1

Nvidia License Server {

config {

agent_vm: False

allow_live_migrate: True

boot {

device {

disk_addr {

bus: "scsi"

index: 0

}

disk_list {

addr {

bus: "sata"

index: 0

}

cdrom: True

device_uuid: "62772fe2-d1dc-4ff6-b6e1-0d8ac5e41dc7"

empty: True

naa_id: "naa.6506b8dc77cd0c62b11a39833f8b4a9c"

}

disk_list {

addr {

bus: "scsi"

index: 0

}

container_id: 1072

container_uuid: "08fb0789-45ea-4a1d-8039-1c9926d78f8d"

device_uuid: "975aff11-d2ea-4de6-b6a7-125a87f6992b"

naa_id: "naa.6506b8d407bbe66324c910ac88c5bfea"

source_vmdisk_uuid: "6cc2214f-188e-4f4d-8516-f975ab3110a4"

vmdisk_nfs_path: "/NXContainer/.acropolis/vmdisk/6d9eb1db-a258-445f-88e2-e275138fe880" ###我們要找的路徑###

vmdisk_size: 21474836480

vmdisk_uuid: "6d9eb1db-a258-445f-88e2-e275138fe880" ###我們要找的VMDisk UUID###

}

hwclock_timezone: "Asia/Taipei"

machine_type: "pc"

memory_mb: 4096

name: "Nvidia License Server"

nic_list {

connected: True

mac_addr: "50:6b:8d:b3:5a:9c"

network_name: "default"

network_type: "kNativeNetwork"

network_uuid: "9b5e437f-72ec-40cc-91b1-fff4f840c547"

type: "kNormalNic"

uuid: "57f3936a-8860-400e-b8e7-8aaa2dd24182"

vlan_mode: "kAccess"

}

num_cores_per_vcpu: 1

num_threads_per_core: 1

num_vcpus: 2

num_vnuma_nodes: 0

vga_console: True

vm_type: "kGuestVM"

}

logical_timestamp: 10

state: "kOff"

uuid: "e0224f1e-1ed3-4f4b-ab9e-478100c5146c"

}

匯出VMDisk

因為在Nutanix AHV上vDisk是被放在一個隱藏的資料夾.acropolis，故我們用qemu-img工具去做匯出
匯出時只會使用精簡佈建的硬碟(用多少資料匯出多少)
確保虛擬機是關閉的狀態

指令如下，執行完成的時間依照虛擬機檔案的大小和伺服器的IO大小

qemu-img convert -c nfs://127.0.0.1/[container]/.acropolis/vmdisk/[UUID] -O qcow2 nfs://127.0.0.1/[container]/[vmdisk].qcow2

1	qemu-img convert -c nfs://127.0.0.1/[container]/.acropolis/vmdisk/[UUID] -O qcow2 nfs://127.0.0.1/[container]/[vmdisk].qcow2

實際執行結果如下，完成後並不會有任何提示

qemu-img convert -c nfs://127.0.0.1/DEMOContainer/.acropolis/vmdisk/6d9eb1db-a258-445f-88e2-e275138fe880 -O qcow2 nfs://127.0.0.1/DEMOContainer/nvidia-license-server.qcow2

1	qemu-img convert -c nfs://127.0.0.1/DEMOContainer/.acropolis/vmdisk/6d9eb1db-a258-445f-88e2-e275138fe880 -O qcow2 nfs://127.0.0.1/DEMOContainer/nvidia-license-server.qcow2

如果轉檔太久，將命令放在背景執行 nohup COMMAND > nohup.log 2>&1 &

Windows用NFS掛載Storage Container

將客戶端加入檔案系統白名單

Win10起用NFS功能

控制台->程式集->程式與功能->開啟windows功能

Windows NFS 客戶端 NFS Export 預設是使用保留的埠(1~1024)，將其關閉

nfsadmin client localhost config UseReservedPorts=no
nfsadmin client

1 2	nfsadmin client localhost config UseReservedPorts=no nfsadmin client

連接到CVM上的NFS 服務端掛載到本地的Z槽，當掛載到UNIX-Like的NFS 服務端時windows 預設只有給anonymous 使用者讀的權限(UID=-2, GID=-2)

mount -o anon \\172.18.205.127\DEMOContainer Z:

1	mount -o anon \\172.18.205.127\DEMOContainer Z:

調整Windows 登入編輯器的nfs client參數讓anonymous 使用者有寫的權限

打開執行輸入regedit
選到HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ClientForNFS\CurrentVersion\Default.
創建一個新的 New DWORD (32-bit) Value 在 Default 資料夾內名稱為 AnonymousUid ，他將會是一個 UID=0在UNIX-Like的NFS Server共享目錄上
創建一個新的 New DWORD (32-bit) Value 在 Default 資料夾內名稱為 AnonymousGid ，他將會是一個 GID=0在UNIX-Like的NFS Server共享目錄上