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    Metadata Acceleration Fees

    Terakhir diperbarui:2024-07-24 11:32:25
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      Note:
      Starting from March 2022, users can access the Cloud Object Storage (COS) metadata acceleration feature for a free trial. As of January 1, 2024, at 00:00:00 (UTC+8), the feature has been deployed with a pay-as-you-go billing model. Please refer to the documentation for more billing details.
      Metadata Acceleration is a high-performance file system feature offered by COS. It leverages the powerful metadata management feature of Cloud HDFS (CHDFS) at the underlying layer to allow you to access COS over file system semantics. It can increase the bandwidth to 100 GB/s, improve QPS to over 100,000, and reduce the latency to the millisecond level. If you use the metadata acceleration feature, corresponding fees will be charged.

      Billing Overview

      Metadata acceleration costs are calculated based on the number of directories, files, and storage duration in the user's metadata acceleration bucket. See details below:
      Billable Item
      Description
      Region
      Billing Mode
      Metadata acceleration fees
      Fees charged to the user for using the metadata acceleration feature, which are calculated based on the number of directories, files, and storage duration in the user's metadata acceleration bucket.
      Chinese mainland: Beijing, Shanghai, Guangzhou, Nanjing, Chengdu, and Chongqing
      Hong Kong (China) and outside Chinese mainland: Hong Kong (China), Singapore, Frankfurt, Silicon Valley (West US), and Virginia (East US)
      Pay-as-you-go

      Billing Mode and Calculation Formulas

      Metadata acceleration is billed on a pay-as-you-go basis，and cannot be offset by resource packages. The calculation method is as follows:
      Applicable Billing Item
      Billing Mode
      Calculation Formula
      Metadata acceleration fees
      Pay-as-you-go
      Fees are settled daily
      Daily metadata acceleration fees = ((daily number of directories + daily number of files) / 10,000) x metadata acceleration unit price
      Daily number of directories = Sum of "Number of directories in the metadata acceleration bucket every 5 minutes" of the day / 288 (sampling rate)
      Daily number of files = Sum of "Number of files in the metadata acceleration bucket every 5 minutes" of the day / 288 (sampling rate)
      Note:
      ‌288 (sampling rate) indicates the number of samples taken every 5 minutes over a 24-hour period (00:00:00 to 23:59:59). This means that 288 samples are taken every day.

      Pricing

      Metadata acceleration costs are calculated based on the number of directories, files, and storage duration in the user's metadata acceleration bucket, rather than storage class. Pricing varies by region as follows:
      Region
      Metadata Acceleration Price (USD/10,000 directories and files/day)
      Beijing, Shanghai, Guangzhou, Nanjing, Chengdu, and Chongqing
      0.0014
      Hong Kong (China), Singapore, Frankfurt, Silicon Valley (West US), and Virginia (East US)
      0.0019

      Billing Examples

      Example: Creating a Directory and Uploading Files

      User A created a metadata acceleration bucket in Beijing at 00:00:00 (UTC+8) on Jan 1, 2024. They then created a new directory called new_folder/ and uploaded 20,000 files into it. These operations were completed by 00:04:00 (UTC+8), and there were no further user actions afterwards.
      Based on the pay-as-you-go billing model, the cost analysis is as follows:
      ‌Daily number of directories = (0 directories × 1 (sampling rate) + 1 directory × 287 (sampling rate)) / 288 (sampling rate) = 0.99653
      Daily number of files = (0 files × 1 (sampling rate) + 20,000 files × 287 (sampling rate)) / 288 (sampling rate) = 19,930.55556
      Daily metadata acceleration fees = ((0.99653 directories + 19,930.55556 files) / 10,000) × 0.0014 USD = 0.00279 USD
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