Storage Request Cost

Storage request cost is a type of storage cost that covers operations generated by on-demand search, index build tasks, and volume file reads or writes.

Sources of storage request cost

Requests are grouped into two classes:

• Class 1: PUT, COPY, POST, LIST

• Class 2: GET, SELECT

The following operations incur storage request costs on Zilliz Cloud:

• Build indexes on a managed collection in a database used for on-demand scenarios. This incurs both Class 1 and Class 2 request costs.

• Run search on a managed collection in a database used for on-demand scenarios when only indexes are loaded. This incurs Class 2 request costs.

• Run search on a tiered-storage serving cluster when cold data is read from object storage. This incurs Class 2 request costs.

• Volume file operations including reads and writes. This incurs both Class 1 and Class 2 request costs.

The following operations do not incur storage request costs:

• All operations on external collections.

• Import data from object storage into a database used for on-demand scenario.

• Build index/search on performance-optimized or capacity-optimized serving clusters.

Cost calculation

Storage Requests Cost = (Class 1 Request Count x Class 1 Unit Price)
                      + (Class 2 Request Count x Class 2 Unit Price)

• Class 1 Request Count: Number of Class 1 requests.

• Class 2 Request Count: Number of Class 2 requests.

• Unit Price: Determined by the cloud region and request class. For details, see Zilliz Cloud Pricing.

Example

Suppose your usage in one billing interval is as follows:

• Region: AWS us-east-1

• Class 1 Request Count: 200,000

• Class 2 Request Count: 1,200,000

The unit prices are:

• Class 1 Unit Price = $5.00 per 1M requests

• Class 2 Unit Price = $0.4 per 1M requests

Then, the total storage request cost is (0.2 x 5.00) + (1.2 x 0.40) = $1.48.