Elastic Compute Service:EBS event notifications

Events

You can subscribe to notifications for the following EBS events:

• System events

• Data disk attaching or detaching

• Disk retaining

• Disk release due to overdue payments

System events

EBS system events include only exception events but not O&M events. Elastic Compute Service (ECS) sends notifications when an event starts and when it ends. For information about the event notification names of different system events, see the Appendix: event notification names section in this topic.

The following notifications are sample notifications in the JSON format for a Stalled event that has a severe impact on disk performance.

• One notification is sent when the event starts. The initial notification contains the executeStartTime parameter.

  {
    "id": "2256A988-0B26-4E2B-820A-8A********E5",
    "product": "ECS",
    "resourceId": "acs:ecs:cn-hangzhou:169070********30:disk/d-t4ndyqve********n4ds",
    "level": "CRITICAL",
    "name": "Disk:Stalled:Executing",
    "userId": "169070********30",
    "eventTime": "20190410T080101.922+0800",
    "regionId": "cn-hangzhou",
    "content": {
      "eventId": "e-t4navn7********6x5no",
      "diskId": "d-t4ndyqve********n4ds",
      "device": "/dev/xvdb",
      "eventType": "Stalled",
      "executeStartTime": "2019-04-10T01:01:01Z",
      "ecsInstanceId": "i-bp1ecr********5go2go",
      "ecsInstanceName": "ecs-instance-name"
    }
  }

• The other notification is sent when the event ends. Compared with the initial notification, the executeFinishTime parameter is added to this notification.

  {
    "id": "2256A988-0B26-4E2B-820A-8A********E5",
    "product": "ECS",
    "resourceId": "acs:ecs:cn-hangzhou:169070********30:disk/d-t4ndyqve********n4ds",
    "level": "CRITICAL",
    "name": "Disk:Stalled:Executing",
    "userId": "169070********30",
    "eventTime": "20190410T080301.922+0800",
    "regionId": "cn-hangzhou",
    "content": {
      "eventId": "e-t4navn7********6x5no",   
      "diskId": "d-t4ndyqve********n4ds",    
      "device": "/dev/xvdb",                 
      "eventType": "Stalled",                
      "executeStartTime": "2019-04-10T01:01:01Z",   
      "executeFinishTime": "2019-04-10T01:03:01Z",  
      "ecsInstanceId": "i-bp1ecr********5go2go",    
      "ecsInstanceName": "ecs-instance-name"        
    }
  }

Data disk attaching or detaching

After a data disk is attached to or detached from an instance, ECS notifies you whether the attach or detach operation is successful. For more information, see Attach a data disk and Detach a data disk.

The following code shows the event notification in the JSON format:

{
  "id": "2256A988-0B26-4E2B-820A-8A********E5",
  "product": "ECS",
  "resourceId": "acs:ecs:cn-hangzhou:169070********30:disk/d-t4ndyqve********n4ds",
  "level": "INFO",
  "name": "Disk:DiskOperationCompleted",
  "userId": "169070********30",
  "eventTime": "20190409T121826.922+0800",
  "regionId": "cn-hangzhou",
  "content": {
      "diskId" : "d-t4ndyqve********n4ds",
      "operation" : "AttachDisk",
      "result" : "accomplished",
      "instanceId" : "i-t4ndpdf***********dsa",
      "diskType" : "data"
  }
}

Disk retaining

You can disable Release Disk with Instance for disks, including system and data disks. The disks are retained and converted to pay-as-you-go data disks when the instances attached to the disks are released. For more information, see Release a disk.

The following code shows the event notification in the JSON format:

{
    "id": "2256A988-0B26-4E2B-820A-8A********E5",
    "product": "ECS",
    "resourceId": "acs:ecs:cn-hangzhou:169070********30:disk/d-t4ndyqve********n4ds",
    "level": "INFO",
    "instanceName": "disk-event-subscription",
    "name": "Disk:ConvertToPostpaidCompleted",
    "userId": "169070********30",
    "eventTime": "20190409T121826.922+0800",
    "regionId": "cn-hangzhou",
    "content": {
    "diskId" : "d-t4ndyqve********n4ds",
    "result" : "accomplished"
    }
}

Disk release due to overdue payments

{
    "id": "2256A988-0B26-4E2B-820A-8A********E5",
    "product": "ECS",
    "resourceId": "acs:ecs:cn-hangzhou:169070********30:disk/d-t4ndyqve********n4ds",
    "level": "CRITICAL",
    "instanceName": "disk-event-subscription",
    "name": "Disk:OverduePaymentRelease",
    "userId": "169070********30",
    "eventTime": "20190409T121826.922+0800",
    "regionId": "cn-hangzhou",
    "content": {
    "instanceId" : "i-bp1792********an2ukf",
    "diskId" : "d-t4ndyqve********n4ds"
    }
}

Appendix: event notification names