eG Monitoring

Measures reported by OSHvImgTest

OpenStack Controller runs Image service that enables users to discover, register, and retrieve virtual machine images. The Image service offers a REST API that enables you to query virtual machine image metadata and retrieve an actual image. The virtual machine images made available through the Image service can be stored in a variety of locations, from simple file systems to object-storage systems like OpenStack Object Storage. The virtual machine images retrieved by the Image services should be active and ready to be booted to create virtual machines. If the image is not fully stored or is unable to boot due to lack of required memory and disk space, then, administrators will not be able to create the virtual machines as planned or will experience delay. This is why, administrators need to continuously monitor status of each image retrieved by the Image service and disk/memory requirements to boot the image. This can be achieved using the OSHvImgTest.

This test continuously monitors the images and promptly reports the current status of each image. This measure enables administrators to instantly find out whether the image saving process is success or interrupted by any error. In addition, this test also reveals the current size of the image and the minimum amount of memory and disk space required to boot the image.

Outputs of the test: One set of results for each image made available through the Image service that is being run by the target OpenStack Controller.

Descriptor: Image

The measures made by this test are as follows:

Measurement | Description | Measurement Unit | Interpretation
--- | --- | --- | ---
Image_status | Indicates the current status of this image. |  | The values this measure reports and their numeric equivalents are provided in the table below:
Measure Value | Numeric Value
Active | 100
Saving | 50
Saving | 25
Deleted | 10
Error | 0
Note: Typically, this measure reports one of the Measure Values listed in the table above. In the graph of this measure however, the status of each image is indicated by its corresponding numeric equivalent only. The detailed diagnosis of this measure reveals the image name, image ID, name of a user who owns the image, format in which the image was stored on the disk, container format, the date at which the image was created.
Min_RAM | Indicates minimum amount of RAM required to boot this image. | MB |
Min_disk | Indicates the minimum disk space required to boot this image. | GB |
Progress | Indicates the progress percentage of the saving process that was initiated when this image was being saved. | Percent |
Size_of_image | Indicates the current size of this image. | MB |