You can query the usage details of an Object Storage Service (OSS) resource plan in the Billing Management console.
Log on to the Billing Management console.
In the left-side navigation pane, click Manage Reserved Instances.
On the Manage Reserved Instances page, select Resource Packages for Resource Type.
On the Details tab, view the usage details of the resource plan.
By default, the usage details about the valid resource plans and the resource plans that have expired for less than one year are displayed.
Optional: If you want to query the usage details of a resource plan in a specific time range, you can configure the query conditions such as Instance Name and Deducted Instance ID.