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Torch Object Storage

Billable items

TOS accelerator

You are charged for the accelerator capacity and provisioned bandwidth when you use the TOS accelerator feature. This topic explains how you are charged for TOS accelerator.

tip

This topic only provides a description of billable items. For specific prices, see TOS pricing details.

Storage capacity is calculated in binary units. For example, 1 GiB equals 1,024 MiB.

Provisioned bandwidth is calculated in decimal units. For example, 1 GB/s equals 1,000 MB/s.

Billable item

Billable item	Description	Formula
TOS accelerator read-only cache-basic300-Storage	When using a TOS accelerator in read-only cache mode, you are charged based on the applied capacity, regardless of how much data is stored.	Pay-as-you-go: Hourly storage cost = Applied capacity (GiB) × Monthly rate ÷ 30 (days) ÷ 24 (hours)
TOS accelerator read/write cache-basic125-Storage	When using TOS accelerator in read/write cache mode, you are charged based on the storage usage and time of use. You are billed hourly for each hour of peak storage usage.	Pay-as-you-go: Storage cost for a given hour= Peak storage usage of the hour (GiB) × Monthly rate ÷ 30 (days) ÷ 24 (hours)
TOS accelerator read/write cache-basic125-Provisioned bandwidth	When using TOS accelerator in read-write cache mode with provisioned bandwidth enabled, you are charged based on the amount of provisioned bandwidth applied and how long it is used for. This fee is settled once per hour. If you enable provisioned bandwidth for your TOS accelerator, the baseline bandwidth provided by the accelerator capacity is free. You are only billed for the portion of provisioned bandwidth that exceeds the baseline. The billable provisioned bandwidth for a given hour is calculated as follows: Provisioned bandwidth > Peak baseline bandwidth of the hour: Billable provisioned bandwidth = Provisioned bandwidth applied - Peak baseline bandwidth of the hour. Provisioned bandwidth <= Peak baseline bandwidth of the hour: Billable provisioned bandwidth = 0.	Pay-as-you-go: Provisioned bandwidth cost for a given hour = Billable provisioned bandwidth of the hour (MB/s) × Monthly rate ÷ 30 (days) ÷ 24 (hours)

Example

Suppose you create an accelerator in read/write cache mode with provisioned bandwidth enabled. The default performance density is 125 MB/s per TiB. During a given hour, the peak storage usage is 10 TiB, and the provisioned bandwidth for that hour is 2 GB/s. The fees incurred during this hour total approximately ¥15.9332. The billing details are as follows:

Billable item	Unit price	Length of time	Formula	Total cost
TOS accelerator read-only cache-basic125-Storage	0.82 ¥/GiB/month	1 hour	Billable storage usage = 10 TiB = 10,240 GiB Storage cost = Peak storage usage × Monthly rate ÷ 30 (days) ÷ 24 (hours) = 10,240 × 0.82 ÷ 30 ÷ 24 = ¥11.6622	Total cost = Storage cost + Provisioned bandwidth cost = ¥11.6622 + ¥4.271 = ¥15.9332
TOS accelerator read/write cache-basic125-Provisioned bandwidth	4.1 ¥/MB/s/month	1 hour	Peak baseline bandwidth = 10 TiB × 125 MB/s/TiB = 1,250 MB/s Billable provisioned bandwidth = 2,000 MB/s - 1,250 MB/s = 750 MB/s Provisioned bandwidth cost = Billable provisioned bandwidth × Unit price ÷ 30 (days) ÷ 24 (hours) = 750 × 4.1 ÷ 30 ÷ 24 = ¥4.271

Last updated: 2026.04.24 16:51:24