# Why Is the Image Size in an OBS Bucket Different from That Displayed in IMS?

#### Symptom

After a private image is exported to an OBS bucket, the image size in the bucket is different from that displayed in IMS. For example, the size of a private image is 1.04 GB on the IMS console. After it is exported to an OBS bucket, the size is displayed as 2.91 GB.

#### Cause Analysis

The size of an image in an OBS bucket varies depending on the file's storage format in the bucket.

Parent topic: Image Exporting