Torch Object Storage
Torch Object Storage
Torch Object Storage
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- Documentation
Torch Object StorageSDK ReferenceGoBucket InterfaceManage Bucket ConfigurationManaging Bucket Storage Classes (Go SDK)
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Managing Bucket Storage Classes (Go SDK)
Copy pageDownload PDFManaging Bucket Storage Classes (Go SDK)
A bucket (Bucket) in TOS serves as a globally unique namespace, functioning as a data container for storing object (Object) data. This article explains how to configure the storage class of a bucket.
Description of Storage Types
A bucket is the globally unique namespace in TOS, functioning as a data container for storing object (Object) data. TOS offers multiple types of bucket storage, suitable for a variety of application scenarios. For more information on storage types, see Storage Types. This article describes how to configure the storage type for a bucket. The bucket storage types are classified into the following categories:
Storage Type | Description | corresponding enumeration value |
Storage Type | Description | corresponding enumeration value |
Standard Storage | Storage types featuring high availability, high reliability, and high performance, suitable for frequently accessed data. | enum.StorageClassStandard |
Low-Frequency Storage | Designed for infrequently accessed data, with a minimum storage period of 30 days. | enum.StorageClassIa |
Archival Flashback Storage | Business scenarios requiring long-term data retention with infrequent access, such as archival records, must be stored for a minimum of 90 days. | enum.StorageClassArchiveFr |
Intelligent Tiered Storage | Applicable to data with uncertain access frequency, allowing adjustment of the access tier based on access frequency to reduce storage costs. | enum.StorageClassIntelligentTiering |
Cold Archival Storage | Classified as a cold data type, it is suitable for business scenarios involving very infrequent access and long-term data retention. Data must be stored for at least 180 days; data must be restored before accessing cold archive data. | enum.StorageClassColdArchive |
Configuring Storage Type
warning
- By default, only the bucket owner has permission to set the bucket storage type.
- After setting the bucket storage type, if the object storage type is not specified during object upload, object copy, or multipart upload initialization, the object will inherit the bucket's storage type.
- When creating a bucket, if no storage type is specified, the default storage type is Standard Storage.
Sample Code
The following code is used to set the storage type of the bucket.
package main
import (
"context"
"fmt"
"github.com/volcengine/ve-tos-golang-sdk/v2/tos"
"github.com/volcengine/ve-tos-golang-sdk/v2/tos/enum"
)
func checkErr(err error) {
if err != nil {
if serverErr, ok := err.(*tos.TosServerError); ok {
fmt.Println("Error:", serverErr.Error())
fmt.Println("Request ID:", serverErr.RequestID)
fmt.Println("Response Status Code:", serverErr.StatusCode)
fmt.Println("Response Header:", serverErr.Header)
fmt.Println("Response Err Code:", serverErr.Code)
fmt.Println("Response Err Msg:", serverErr.Message)
} else if clientErr, ok := err.(*tos.TosClientError); ok {
fmt.Println("Error:", clientErr.Error())
fmt.Println("Client Cause Err:", clientErr.Cause.Error())
} else {
fmt.Println("Error:", err)
}
panic(err)
}
}
func main() {
var (
accessKey = os.Getenv("TOS_ACCESS_KEY")
secretKey = os.Getenv("TOS_SECRET_KEY")
endpoint = "https://tos-cn-beijing.volces.com"
region = "cn-beijing"
bucketName = "*** Provide your bucket name ***"
ctx = context.Background()
)
client, err := tos.NewClientV2(endpoint, tos.WithRegion(region), tos.WithCredentials(tos.NewStaticCredentials(accessKey, secretKey)))
checkErr(err)
storageClass := enum.StorageClassIa
output, err := client.PutBucketStorageClass(ctx, &tos.PutBucketStorageClassInput{
Bucket: bucketName,
StorageClass: storageClass,
})
checkErr(err)
fmt.Println("PutBucketStorageClass Request ID:", output.RequestID)
}
Retrieve Default Storage Type
warning
By default, only the bucket owner has permission to access the bucket's storage type.
Sample Code
The following code is used to retrieve the storage type of a bucket.
package main
import (
"context"
"fmt"
"github.com/volcengine/ve-tos-golang-sdk/v2/tos"
"github.com/volcengine/ve-tos-golang-sdk/v2/tos/enum"
)
func checkErr(err error) {
if err != nil {
if serverErr, ok := err.(*tos.TosServerError); ok {
fmt.Println("Error:", serverErr.Error())
fmt.Println("Request ID:", serverErr.RequestID)
fmt.Println("Response Status Code:", serverErr.StatusCode)
fmt.Println("Response Header:", serverErr.Header)
fmt.Println("Response Err Code:", serverErr.Code)
fmt.Println("Response Err Msg:", serverErr.Message)
} else if clientErr, ok := err.(*tos.TosClientError); ok {
fmt.Println("Error:", clientErr.Error())
fmt.Println("Client Cause Err:", clientErr.Cause.Error())
} else {
fmt.Println("Error:", err)
}
panic(err)
}
}
func main() {
var (
accessKey = os.Getenv("TOS_ACCESS_KEY")
secretKey = os.Getenv("TOS_SECRET_KEY")
endpoint = "https://tos-cn-beijing.volces.com"
region = "cn-beijing"
bucketName = "*** Provide your bucket name ***"
ctx = context.Background()
)
client, err := tos.NewClientV2(endpoint, tos.WithRegion(region), tos.WithCredentials(tos.NewStaticCredentials(accessKey, secretKey)))
checkErr(err)
headOutput, err := client.HeadBucket(ctx, &tos.HeadBucketInput{Bucket: bucketName})
checkErr(err)
fmt.Println("Bucket Storage Class:", headOutput.StorageClass)
}
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Last updated: 2025.09.19 17:30:19
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