Storage Transfer Service 仅对成功传输到目的地的字节数收费。如果 Storage Transfer Service 重试先前失败的某次对象转移，则不会对失败的请求已经转移的字节数再次计费。同样，如果您启动一次增量转移，则不会因上次转移后未发生更改的文件而产生费用，因为 Storage Transfer Service 不会重新传输这些文件。
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],[],[],[],null,["# Pricing\n\nStorage Transfer Service pricing\n================================\n\nThis page describes pricing for [Storage Transfer Service](/storage-transfer/docs/overview).\n\nPricing overview\n----------------\n\n\\* You will be charged this fee in addition to charges associated with network\nusage and operations performed by the service at source and destinations on\nyour behalf.\n\nThe following sections provide detailed information about the pricing for\ndifferent transfer scenarios.\n\nStorage Transfer Service pricing details\n----------------------------------------\n\nYou are charged for data stored on Cloud Storage as documented in\n[Cloud Storage pricing](/storage/pricing).\n\nExternal cloud providers' costs may apply while you use Storage Transfer Service.\n\n### Common charges\n\nThe following charges may apply when you use Storage Transfer Service, regardless\nof the source:\n\n- You incur charges from Cloud Storage usage during the course of a\n transfer, such as:\n\n - Transferring from one Cloud Storage bucket to another.\n - Rewriting data in a Cloud Storage bucket.\n - Deleting data from a Cloud Storage bucket. For more information, see [early deletion fees](/storage/pricing#early-delete).\n- A transfer may require listing the contents of both the source and\n destination buckets. You incur charges from both Cloud Storage and\n the source cloud provider when Storage Transfer Service performs a list\n operation. A single list operation can retrieve a maximum of 1000 objects\n per bucket. For more, see\n [Cloud Storage Operations pricing](/storage/pricing#operations-pricing)\n and the appropriate pricing page of the source cloud provider.\n\n### External providers to Cloud Storage transfer pricing\n\nThe following charges may apply when you use Storage Transfer Service to transfer\ndata from an external provider to Cloud Storage, in addition to the\ncharges specified in [Common charges](#common-charges):\n\n- You incur a `PUT` operation charge for each object added to a\n Cloud Storage bucket. For more information, see\n [Cloud Storage operations pricing](/storage/pricing#operations-pricing).\n\n- You may incur outbound data transfer and operational charges from your source cloud\n provider. For more information, see the appropriate pricing page of the\n source cloud provider.\n\n | **Note:** Storage Transfer Service provides optimization to avoid copying data if the source data and destination data match, reducing your outbound data transfer charges. You can change this by setting `overwriteObjectsAlreadyExistingInSink` to `True`. For information on changing this default, see [TransferOptions](/storage-transfer/docs/reference/rest/v1/TransferSpec#transferoptions).\n\n### Cloud Storage to Cloud Storage transfer pricing\n\nThe following charges apply when you use Storage Transfer Service to transfer data\nbetween Cloud Storage buckets, in addition to the charges specified in\n[Common charges](#common-charges):\n\n- You incur transfer charges when transferring data from a\n Cloud Storage bucket to another Cloud Storage bucket. For\n more information, see [Network pricing](/storage/pricing#network-buckets).\n\n- Storage Transfer Service uses Cloud Storage `rewrite` operations to\n move data between Cloud Storage buckets, a Class A operation, as\n well as a `GetObjectMetadata` request per object transferred, a Class B\n operation. For more information, see\n [Cloud Storage pricing](/storage/pricing#operations-pricing).\n\nFile system transfer pricing details\n------------------------------------\n\nThe following table summarizes the billable charges for data transferred to,\nfrom, or between file systems:\n\nStorage Transfer Service generates charges only for bytes transferred to the\ndestination successfully. If Storage Transfer Service retries an object transfer that\nfailed, the initial bytes moved on the failed request are not billed. Similarly,\nif you start an incremental transfer, you are not billed for files that haven't\nchanged from the previous transfer, because Storage Transfer Service doesn't\nre-transfer the file.\n\nDo the following to view the cost of a single transfer:\n\n1. Go to the **Transfer jobs** page in the Google Cloud console.\n\n [Go to Transfer jobs](https://console.cloud.google.com/transfer/)\n2. Click the job in question. The **Job details** page is displayed.\n\n3. In the **Data transferred** field, note the total bytes transferred.\n\n4. Calculate the cost of your transfer:\n Total bytes \\* $0.0125 per GB.\n\n| **Note:** [Cloud Storage pricing](/storage/pricing) and [non-transfer charges](#non-transfer) are applied when you use Transfer for on-premises.\n\n### Non-transfer charges\n\nWhile transferring data, Storage Transfer Service uses Google Cloud resources. Using\nthose resources generates billable *operations* on your behalf for\nCloud Storage. An operation is an action that makes\nchanges to or retrieves information about buckets and objects in\nCloud Storage. For more information, see\n[Cloud Storage operations pricing](/storage/pricing#operations-pricing).\n\nThe following table summarizes the billable operations that occur during a\nStorage Transfer Service transfer operation:\n\nFiles that are restarted mid-upload due to a modification on your premises will\nnot incur an extra cost from Storage Transfer Service. They may incur an extra\nCloud Storage cost, as the files with changes may be treated as additional\nfiles within Cloud Storage. However, we expect that this scenario is rare\nenough that it doesn't meaningfully influence cost.\n| **Note:** The scenario above describes approximate resource consumption, which may vary based on your environment. It also refers to current pricing for Cloud Storage, and may change after this writing. For cost-concious users, we recommend that you perform a small transfer job with a sample of your data before beginning your production transfer jobs. This will enable you to gauge your non-transfer costs in your environment.\n\nFor more information about Google Cloud resource pricing, see:\n\n- [Cloud Storage operations pricing](/storage/pricing#operations-pricing)\n\nWhat's next\n-----------\n\n- Read the [Storage Transfer Service documentation](/storage-transfer/docs).\n- Learn about [Storage Transfer Service solutions and use cases](/architecture?text=Storage Transfer Service).\n\n#### Request a custom quote\n\nWith Google Cloud's pay-as-you-go pricing, you only pay for the services you use. Connect with our sales team to get a custom quote for your organization.\n[Contact sales](/contact?direct=true)"]]
