In Oracle Cloud Infrastructure (OCI), when a block volume is detached from an instance, its performance level is automatically adjusted to the "Lower Cost" tier, which provides 0 VPUs (Volume Performance Units) per GB. This adjustment helps reduce costs when the block volume is not actively being used by a compute instance.
Key Points:
* Volume Performance Levels:OCI offers various performance tiers for block volumes, including
"Higher Performance," "Balanced," and "Lower Cost." These tiers determine the level of IOPS (Input
/Output Operations Per Second) and throughput available to the volume.
* Automatic Adjustment:When a block volume is detached from an instance, OCI automatically optimizes the cost by switching the volume to the "Lower Cost" performance tier. This tier offers minimal performance, suitable for data that is not actively accessed.
* Cost Management:This automatic adjustment is beneficial for managing costs, as it prevents users from incurring unnecessary charges for higher performance levels when the volume is not in use.
References:
* Oracle Cloud Infrastructure Documentation:Block Volume Performance Levels