Resource Center

• When a VM instance is running, these UUIDs will be set to values that represent the current location of the VM instance.
• After a VM instance is stopped, hostUuid will be set to NULL, while zoneUuid and clusterUuid will remain unchanged.
• The lastHostUuid parameter is special, as it represents the host on which the VM instance was running last time.
• For newly created VM instances, lastHostUuid is set to NULL.
• Once a VM instance is stopped, lastHostUuid is set to the previous value of lastHostUuid.

• If a VM instance has more than one L3 network, you must set a default L3 network for this VM instance. The default L3 network provides default route, DNS, and hostname.
• If a VM instance has only one L3 network, this one automatically becomes the default L3 network.

CIDR: 10.10.1.0/24 Gateway: 10.10.1.1 DNS domain: web.tier.mycompany.com

default via 10.10.1.1 dev eth0 10.10.1.0/24 dev eth0  proto kernel  scope link  src 10.10.1.99 192.168.0.0/24 dev eth1  proto kernel  scope link  src 192.168.0.10 172.16.0.0/24 dev eth2  proto kernel  scope link  src 172.16.0.55

search web.tier.mycompany.com nameserver 10.10.1.1

vm2.web.tier.mycompany.com

• For a VM instance that is created from RootVolumeTemplate:

  Images already have operating system installed. Therefore, the VM instance will be created on a host with the same hypervisor type as the VM instance image. In this case, the hypervisor type of the VM instance is inherited from image.

• For a VM instance that is created from ISO:

  ISO is used to install the operating system on a blank root volume of the VM instance. Therefore, the VM instance might be created on a host of any hypervisor type. In this case, the hypervisor type of the VM instance is inherited from host.

• Created

  Indicates that the VM instance is just created as a record in the database and is not started on any host. This state only exists when you create a new VM instance.

• Starting

  Indicates that the VM instance is being started on a host.

• Running

  Indicates that the VM instance is running on a host.

• Stopping

  Indicates that the VM instance is being stopped on a host.

• Stopped

  Indicates that the VM instance is stopped and is not running on any host.

• Rebooting

  Indicates that the VM instance is being rebooted on the host where the VM instance was running last time.

• Destroying

  Indicates that the VM instance is being deleted.

• Destroyed

  Indicates that the VM instance is deleted

• Migrating

  Indicates that the VM instance is being migrated to the other host.

• Expunging

  Indicates that the database of the VM instance is being deleted.

• Pausing

  Indicates that the VM instance is being paused on a host.

• Paused

  Indicates that the VM instance is paused.

• Resuming

  Indicates that the VM instance is being resumed from the Paused state to the Running state.

• VolumeMigrating

  Indicates that the root volume of the VM instance is being migrated from local storage to the other host.

• Unknown

  Indicates that ZStack Cloud fails to detect the state due to reasons such as losing disconnection to the host.

• For example, the power outage of a host will cause all VM instances running on the host to stop running. Once VM Tracer detects a mismatch between the actual state of a VM instance and the recorded state in the database, VM Tracer will update the database to catch up with the actual state.
• If VM Tracer fails to check the state of a VM instance due to reasons such as disconnection between the management node and the host, VM Tracer will set the state of the VM instance to Unknown. Once VM Tracer successfully detects the VM instance state again, for example, after the management node is reconnected to the host, VM Tracer will update the VM instance to the actual state.

{     "inventories": [         {             "createDate": "Jan 15, 2019 4:59:25 PM",             "deviceId": 0,             "lastOpDate": "Jan 15, 2019 4:59:25 PM",             "name": "vm-6e243d2edf8443a4968d3878a4fed2a6-cdRom",             "uuid": "29f6e8c277a94e57bd0b7c627bd65e85",             "vmInstanceUuid": "6e243d2edf8443a4968d3878a4fed2a6"         }     ],     "success": true } 

{     "inventories": [         {             "cpuShares": 512,             "createDate": "Oct 16, 2019 9:51:40 AM",             "lastOpDate": "Oct 16, 2019 9:51:40 AM",             "level": "Normal",             "oomScoreAdj": 0,             "uuid": "b29df0c34e874a1c83033a3cfe61f086"         },         {             "cpuShares": 1024,             "createDate": "Oct 16, 2019 9:51:40 AM",             "lastOpDate": "Oct 16, 2019 9:51:40 AM",             "level": "High",             "oomScoreAdj": -900,             "uuid": "c804903064f54e36b3a066be0cd24aef"         }     ],     "success": true } 

{     "inventories": [         {             "createDate": "Apr 12, 2023 1:10:34 PM",             "lastOpDate": "Apr 12, 2023 1:10:34 PM",             "osType": "ubuntu 18.04",             "platform": "Linux",             "qgaState": "NotInstalled",             "version": "4.6.21",             "vmInstanceUuid": "93d0afea996d40cc99b49c22960187ba",             "zwatchState": "Running"         }     ],     "success": true }