Restoring Objects from the Cold Storage

Function

You can use this command to restore a specified object whose storage class is cold or restore objects in batches by object name prefix.

Object content cannot be read during restoration.
After an object is restored, the time it requires before the object can be downloaded depends on the OBS server.

Command Line Structure

In Windows

Restoring an object

obsutil restore obs://bucket/key [-d=1] [-t=xxx] [-versionId=xxx] [-fr] [-o=xxx] [-config=xxx]

Restoring objects in batches

obsutil restore obs://bucket[/key] -r [-f] [-v] [-d=1] [-t=xxx] [-o=xxx] [-j=1] [-config=xxx]

Restoring all objects in a specific directory at a time

obsutil restore obs://bucket/folder/ -r [-f] [-v] [-d=1] [-t=xxx] [-o=xxx] [-j=1] [-config=xxx]

In Linux or macOS

Restoring an object

./obsutil restore obs://bucket/key [-d=1] [-t=xxx] [-versionId=xxx] [-fr] [-o=xxx] [-config=xxx]

Restoring objects in batches

./obsutil restore obs://bucket[/key] -r [-f] [-v] [-d=1] [-t=xxx] [-o=xxx] [-j=1] [-config=xxx]

Restoring all objects in a specific directory at a time

./obsutil restore obs://bucket/folder/ -r [-f] [-v] [-d=1] [-t=xxx] [-o=xxx] [-j=1] [-config=xxx]

Examples

Take the Windows OS as an example. Run the obsutil restore obs://bucket-test/key command to restore a single object whose storage class is cold.
```
obsutil restore obs://bucket-test/key

Start to restore object [key] in the bucket [bucket-test] successfully!
```

Take the Windows OS as an example. Run the obsutil restore obs://bucket-test -r -f command to restore objects whose storage class is cold in the bucket in batches.

obsutil restore obs://bucket-test -r -f

[================================================] 100.00% 3s
Succeed count is:   12        Failed count is:    0
Metrics [max cost:264 ms, min cost:54 ms, average cost:119.33 ms, average tps:19.70]
Task id is: 96f104ee-d0bf-40ff-95dd-31dec0d8f4f4

Parameter Description

Parameter	Optional or Mandatory	Description
bucket	Mandatory	Bucket name
key	Mandatory for restoring a single object whose storage class is cold Optional for batch restoring objects whose storage class is cold	Indicates the name of the object to be restored or the name prefix of the objects to be restored in batches. NOTE: If this parameter is left blank when batch restoring objects, all objects whose storage class is cold in the bucket are restored.
d	Optional (additional parameter)	Storage duration after objects whose storage class is cold are restored, in days. The value ranges from 1 to 30. The default value is 1.
t	Optional (additional parameter)	Options for restoring objects. Possible values are: standard expedited NOTE: expedited indicates that objects can be quickly restored from Archive storage within 1 to 5 minutes. standard indicates that objects can be restored from Archive storage within 3 to 5 hours. If this parameter is not configured, an expedited restore is used by default.
versionId	Optional for restoring a single object whose storage class is cold (additional parameter)	Version ID of the to-be-restored object whose storage class is cold
fs	Optional (additional parameter)	Specifies whether the method of listing parallel file systems is applied. If you are listing parallel file systems, you are recommended to add this parameter. CAUTION: With this method, the listing time required varies largely depending on the directory structures. After this parameter is enabled, marker and limit will be ignored. Then, the buckets or parallel file systems (including directories) will be calculated. This parameter is only supported by obsutil 5.5.12 and later.
fr	Optional for restoring a single object whose storage class is cold (additional parameter)	Generates an operation result list when restoring a single object whose storage class is cold.
f	Optional for batch restoring objects whose storage class is cold (additional parameter)	Runs in force mode.
r	Mandatory for batch restoring objects whose storage class is cold (additional parameter)	Restores objects whose storage class is cold in batches by object name prefix.
v	Optional for batch restoring objects whose storage class is cold (additional parameter)	Restores versions of objects whose storage class is cold in batches by object name prefix.
o	Optional (additional parameter)	Indicates the folder where operation result lists reside. After the command is executed, result lists (possibly including success and failure files) are generated in the folder. The default value is .obsutil_output, the subfolder in the home directory of the user who executes obsutil commands. NOTE: The naming rule for result lists is as follows: restore_{succeed \| failed}_report_time_TaskId.txt By default, the maximum size of a single result list is 30 MB and the maximum number of result lists that can be retained is 1024. You can set the maximum size and number by configuring recordMaxLogSize and recordBackups in the configuration file.
j	Optional for batch restoring objects whose storage class is cold (additional parameter)	Maximum number of concurrent tasks for batch restoring objects whose storage class is cold. The default value is the value of defaultJobs in the configuration file. NOTE: The value is ensured to be greater than or equal to 1.
config	Optional (additional parameter)	User-defined configuration file for executing a command. For details about parameters that can be configured, see Parameter Description.