Queries the backup settings of an ApsaraDB for RDS instance.

Debugging

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Request parameters

Parameter Type Required Example Description
Action String Yes DescribeBackupPolicy

The operation that you want to perform. Set the value to DescribeBackupPolicy.

DBInstanceId String Yes rm-uf6wjk5xxxxxxx

The ID of the instance.
BackupPolicyMode String No DataBackupPolicy

The type of backup policy to query. Valid values:

  • DataBackupPolicy: specifies to query the data backup settings.
  • LogBackupPolicy: specifies to query the log backup settings.
CompressType String No 1

The format that is used to compress backups. Valid values:

  • 0: specifies not to compress backups.
  • 1: specifies to compress backups by using zlib.
  • 2: specifies to compress backups by using zlib that invokes multiple threads in parallel for each backup.
  • 4: specifies to compress backups by using QuickLZ. These backups can be used to restore individual databases and tables.
  • 8: specifies to compress backups by using QuickLZ if the instance is running MySQL 8.0. These backups cannot be used to restore individual databases or tables.

Response parameters

Parameter Type Example Description
RequestId String B87E2AB3-B7C9-4394-9160-7F639F732031

The ID of the request.
BackupRetentionPeriod Integer 7

The number of days for which data backup files are retained.
PreferredNextBackupTime String 2018-01-19T15:15Z

The time to start the next backup. The time follows the ISO 8601 standard in the yyyy-MM-ddTHH:mmZ format. The time is displayed in UTC.

PreferredBackupTime String 15:00Z-16:00Z

The time to back up data. The time follows the ISO 8601 standard in the HH:mmZ-HH:mmZ format. The time is displayed in UTC.

PreferredBackupPeriod String Monday,Wednesday,Friday,Sunday

The cycle to back up data. If more than one day within a week is specified, they are separated with commas (,). Valid values:

  • Monday
  • Tuesday
  • Wednesday
  • Thursday
  • Friday
  • Saturday
  • Sunday
BackupLog String Enable

Indicates whether the log backup function is enabled. Valid values: Enable | Disabled.

LogBackupRetentionPeriod Integer 7

The number of days for which binary log files are retained.
EnableBackupLog String 1

Indicates whether the log backup function is enabled. Valid values:

  • 1: The log backup function is enabled.
  • 0: The log backup function is disabled.
LocalLogRetentionHours Integer 0

The number of hours for which binary log files are retained on the instance.
LocalLogRetentionSpace String 30

The maximum disk usage that is allowed for binary log files on the instance.
Duplication String Enable

Indicates whether backups are dumped to Alibaba Cloud Object Storage Service (OSS). Valid values: Enable | Disabled.

DuplicationContent String DATA&LOG

The type of data that is dumped to OSS. Valid values:

  • DATA: Only data backup files are dumped to OSS.
  • LOG: Only binary log files are dumped to OSS.
  • DATA&LOG: Both data backup files and binary log files are dumped to OSS.
Note This parameter must be specified when you set the Duplication parameter to Enable.
HighSpaceUsageProtection String Enable

Indicates whether to enable the function that is used to delete binary log files if the disk usage exceeds 80% or the remaining disk space is less than 5 GB on the instance. Valid values:

  • Disable
  • Enable
LogBackupFrequency String LogInterval

The frequency at which binary log files are generated. Valid values:

  • The LogInterval value indicates that binary log files are generated every 30 minutes.
  • The default frequency is the same as the value of the PreferredBackupPeriod parameter.
Note The LogBackupFrequency parameter is available only when the instance is running SQL Server.
CompressType String 1

The format that is used to compress backups. Valid values:

  • 0: Backups are not compressed.
  • 1: Backups are compressed by using zlib.
  • 2: Backups are compressed by using zlib that invokes multiple threads in parallel for each backup.
  • 4: Backups are compressed by using QuickLZ and can be used to restore individual databases and tables.
  • 8: Backups are compressed by using QuickLZ but cannot be used to restore individual databases or tables. This value is available only when the instance is running MySQL 8.0.
ArchiveBackupRetentionPeriod String 365

The number of days for which archived backups are retained.
ArchiveBackupKeepPolicy String ByMonth

The cycle based on which archived backups are retained.
ArchiveBackupKeepCount String 1

The number of archived backups that can be retained.
ReleasedKeepPolicy String None

The policy that is used to retain archived backups if the instance is released. Valid values:

  • None: No archived backups are retained.
  • Lastest: Only the last archived backup is retained.
  • All: All of the archived backups are retained.
LogBackupLocalRetentionNumber Integer 60

The number of binary log files that can be retained on the instance.
DuplicationLocation Struct

The location where backups are stored.
Sotrage String OSS

The media that is used to store backups. In most cases, backups are stored in OSS.
Location Struct

The information about the location.
Endpoint String oss-cn-shanghai.aliyuncs.com

The name of the endpoint to which backups are dumped.
Bucket String mybucket

The name of the OSS bucket to which backups are dumped.

Examples

Sample requests

http(s)://rds.aliyuncs.com/? Action=DescribeBackupPolicy
&DBInstanceId=rm-uf6wjk5xxxxxxxxxx
&<Common request parameters>

Sample success responses

XML format 

<DescribeBackupPolicyResponse>
  <LogBackupRetentionPeriod>100</LogBackupRetentionPeriod>
  <LogBackupFrequency></LogBackupFrequency>
  <HighSpaceUsageProtection>Enable</HighSpaceUsageProtection>
  <DuplicationLocation>
        <Location>
              <Bucket></Bucket>
              <Endpoint></Endpoint>
        </Location>
        <Sotrage>OSS</Sotrage>
  </DuplicationLocation>
  <ArchiveBackupKeepPolicy>ByMonth</ArchiveBackupKeepPolicy>
  <CompressType>4</CompressType>
  <Duplication></Duplication>
  <LocalLogRetentionHours>18</LocalLogRetentionHours>
  <EnableBackupLog>1</EnableBackupLog>
  <PreferredNextBackupTime>2019-12-24T07:56Z</PreferredNextBackupTime>
  <BackupLog>Enable</BackupLog>
  <ArchiveBackupKeepCount>1</ArchiveBackupKeepCount>
  <PreferredBackupPeriod>Monday,Tuesday</PreferredBackupPeriod>
  <ArchiveBackupRetentionPeriod>0</ArchiveBackupRetentionPeriod>
  <RequestId>E48F2D79-C580-44DB-B756-AB21B5DAA3A7</RequestId>
  <DuplicationContent></DuplicationContent>
  <ReleasedKeepPolicy>None</ReleasedKeepPolicy>
  <BackupRetentionPeriod>7</BackupRetentionPeriod>
  <PreferredBackupTime>07:00Z-08:00Z</PreferredBackupTime>
  <LogBackupLocalRetentionNumber>50</LogBackupLocalRetentionNumber>
  <LocalLogRetentionSpace>30</LocalLogRetentionSpace>
</DescribeBackupPolicyResponse>

JSON format 

{
    "LogBackupRetentionPeriod": "100",
    "LogBackupFrequency": "",
    "HighSpaceUsageProtection": "Enable",
    "DuplicationLocation": {
        "Location": {
            "Bucket": "",
            "Endpoint": ""
        },
        "Sotrage": "OSS"
    },
    "ArchiveBackupKeepPolicy": "ByMonth",
    "CompressType": "4",
    "Duplication": "",
    "LocalLogRetentionHours": "18",
    "EnableBackupLog": "1",
    "PreferredNextBackupTime": "2019-12-24T07:56Z",
    "BackupLog": "Enable",
    "ArchiveBackupKeepCount": 1,
    "PreferredBackupPeriod": "Monday,Tuesday",
    "ArchiveBackupRetentionPeriod": 0,
    "RequestId": "E48F2D79-C580-44DB-B756-AB21B5DAA3A7",
    "DuplicationContent": "",
    "ReleasedKeepPolicy": "None",
    "BackupRetentionPeriod": 7,
    "PreferredBackupTime": "07:00Z-08:00Z",
    "LogBackupLocalRetentionNumber": 50,
    "LocalLogRetentionSpace": "30"
}

Error codes

For a list of error codes, visit the API Error Center.