This page explains how to view the mounted image logs created in Cloud Logging. These logs provide information about the details of the mounted images present on the backup/recovery appliance. These logs are generated once every eight hours.
Permissions and roles
You need the IAM 
permission roles/logging.viewer 
to view the
mounted image logs. The Logs Viewer role gives you read-only access to view
mounted image logs of all backup/recovery appliances in the specified project.
For more information about the IAM permissions and roles that apply to mounted
image logs data, see Access control with IAM 
.
View mounted image logs
You can view Backup and DR Service mounted image logs in Cloud Logging by using the Google Cloud console and the Google Cloud CLI.
Console
- In the Google Cloud console, go to the Logging> Logs Explorer.
- Select an existing Cloud project.
- In the Query builderpane, select gcb_mounted_imagesfrom the Select Log namelist.
gcloud
The Google Cloud CLI provides a command-line interface to the Cloud Logging API. To read your log entries of backup/recovery appliances in a project, run the following command:
The Google Cloud CLI provides a command-line interface to the Logging API. To read your mounted image log entries of backup/recovery appliances in a project, run the following command:
 ```sh
gcloud logging read "logName : projects/ PROJECT_ID 
/logs/backupdr.googleapis.com%2Fgcb_gcb_mounted_images" --project= PROJECT_ID 
``` 
 
Mounted images log format
Backup and DR Service mounted images log entries include the following fields:
| Field Name | Description | 
|---|---|
| Appliance ID | The ID of the appliance associated with the host where the image is mounted. | 
| Appliance name | The name of the appliance associated with the host where the image is mounted. | 
| Last mount date | The timestamp when the image was last successfully mounted. | 
| Mounted hostname | The name of the host where the image is mounted. | 
| Mounted host ID | The ID of the host where the image is mounted. | 
| Mounted image age in days | The number of days from when the image was last mounted. | 
| Mounted image name | The name of the mounted image. | 
| Mounted resource label | The label associated with the mounted resource. | 
| Mounted resource name | The name of the resource on which the image is mounted. | 
| Read mode | The mode in which data gets read from the OnVault pool. | 
| Recovery point date | The timestamp of when the last successful backup was taken. | 
| Resource type | The type of resource, for example, Compute Engine instance, Google Cloud VMware Engine, file system, or database. | 
| Resource virtual size (GiB) | The size of the resource in GiB. | 
| Resource size (GiB) | The size of the protected resource in GiB. | 
| Restorable object | The object of the application which is restored as part of mount. | 
| Storage consumed (GiB) | The size of the storage consumed in GiB. | 
| Source image expiration date | The mounted image expiration date. It is in YYYY-MM-DDTHH:MM:SS.SSSZ format. | 
| Source image name | The name of the source image. | 
| Source image type | The type of source image. It can be a snapshot or OnVault image. | 
| Source hostname | The name of the source host. | 
| Source resource name | The name of the source resource. | 
| Source host ID | The ID of the source host where the image is mounted. | 
| Source resource ID | The ID of the source resource. | 
| Username | The name of the user who initiated the mount operation. | 
The following sample is an example log entry logged on a backup/recovery appliance sky-full-82959 
.
   
 { 
  
 "insertId" 
 : 
  
 "49459606_142868351806" 
 , 
  
 "jsonPayload" 
 : 
  
 { 
  
 "source_resource_id" 
 : 
  
 "14617" 
 , 
  
 "mounted_image_age_in_days" 
 : 
  
 72 
 , 
  
 "source_host_id" 
 : 
  
 "14348" 
 , 
  
 "source_image_type" 
 : 
  
 "snapshot" 
 , 
  
 "appliance_name" 
 : 
  
 "sky-full-82959" 
 , 
  
 "resource_size_in_gib" 
 : 
  
 0.31 
 , 
  
 "mounted_host_id" 
 : 
  
 "14348" 
 , 
  
 "restorable_object" 
 : 
  
 "/postgre11-data" 
 , 
  
 "read_mode" 
 : 
  
 "Balanced" 
 , 
  
 "storage_consumed_in_gib" 
 : 
  
 0 
 , 
  
 "resource_virtual_size_in_gib" 
 : 
  
 47.99 
 , 
  
 "recovery_point_date" 
 : 
  
 "2024-05-03T18:15:46Z" 
 , 
  
 "appliance_id" 
 : 
  
 "142868351806" 
 , 
  
 "source_resource_name" 
 : 
  
 "/postgre11-data" 
 , 
  
 "source_image_name" 
 : 
  
 "Image_0014977" 
 , 
  
 "resource_type" 
 : 
  
 "FileSystem" 
 , 
  
 "mounted_host_name" 
 : 
  
 "postgres11-1" 
 , 
  
 "source_image_expiration_date" 
 : 
  
 "2024-05-05T18:16:07.530Z" 
 , 
  
 "mounted_image_name" 
 : 
  
 "Image_0015394" 
 , 
  
 "user_name" 
 : 
  
 "AGMUser(pkmishra@google.com:16924)" 
 , 
  
 "mounted_resource_name" 
 : 
  
 "postgres1" 
 , 
  
 "last_mount_date" 
 : 
  
 "2024-05-03T18:23:25Z" 
 , 
  
 "mounted_resource_label" 
 : 
  
 "postgres1" 
 , 
  
 "source_host_name" 
 : 
  
 "postgres11-1" 
  
 }, 
  
 "resource" 
 : 
  
 { 
  
 "type" 
 : 
  
 "backupdr.googleapis.com/ManagementConsole" 
 , 
  
 "labels" 
 : 
  
 { 
  
 "resource_container" 
 : 
  
 "projects/xxxxxxxxxxxx" 
 , 
  
 "management_server_id" 
 : 
  
 "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" 
 , 
  
 "location" 
 : 
  
 "us-central1" 
  
 } 
  
 }, 
  
 "timestamp" 
 : 
  
 "2024-07-15T08:29:56.885Z" 
 , 
  
 "logName" 
 : 
  
 "projects/project_ID/logs/backupdr.googleapis.com 
 %2F 
 gcb_mounted_images" 
 , 
  
 "receiveTimestamp" 
 : 
  
 "2024-07-15T08:36:04.071156102Z" 
  
 } 
 
 
Sample queries
To view selected logs, you can write custom queries in the query section.
Use the following query to view all the mounted image logs for a given PROJECT_ID :
 logName="projects/ PROJECT_ID 
/logs/backupdr.googleapis.com%2Fgcb_mounted_images" 
 
If you are looking to view mounted image details log associated with a backup/recovery appliance.
   
 logName 
 = 
 "projects/ PROJECT_ID 
/logs/backupdr.googleapis.com 
 %2F 
 gcb_mounted_images" 
  
 jsonPayload 
 . 
 appliance_name 
 = 
 " appliance_name 
" 
 
 
If you are looking to view mounted image details log for a given resource.
   
 logName 
 = 
 "projects/ PROJECT_ID 
/logs/backupdr.googleapis.com 
 %2F 
 gcb_mounted_images" 
  
 jsonPayload 
 . 
 source_resource_name 
 = 
 " resource_name 
" 
 
 
If you are looking for the view mounted image details log associated with a particular host.
   
 logName 
 = 
 "projects/ PROJECT_ID 
/logs/backupdr.googleapis.com 
 %2F 
 gcb_unprotected_resource" 
  
 jsonPayload 
 . 
 source_host_name 
 = 
 " host_name 
" 
 
 
What's next
- To configure log-based alerts for Backup and DR Service, create a log query, using the filter mounted images logs , and then Configure log-based alerts .

