Elastic Block Storage event notifications

Events

You can subscribe to notifications for the following Elastic Block Storage events:

• System events
• Data disk attaching or detaching
• Disk retaining
• Disk release due to overdue payments

System events

Elastic Block Storage system events are caused only by exceptions. ECS sends two notifications: one at the start time of the event and the other at the end time of the event. For the event notification names of different system events, see Appendix: event notification names.

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

• The initial notification that ECS sends you when the event starts contains the executeStartTime parameter.

  {
    "ver": "1.0",
    "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 notification that ECS sends you when the event ends contains the executeFinishTime parameter.

  {
    "ver": "1.0",
    "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 sends you a notification to indicate 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:

{
  "ver": "1.0",
  "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"
  }
}

Disk retaining

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

{
    "ver": "1.0",
    "id": "2256A988-0B26-4E2B-820A-8A0580D0B8E5",
    "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

{
    "ver": "1.0",
    "id": "2256A988-0B26-4E2B-820A-8A0580D0B8E5",
    "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