ModifyDBInstance

Modifies settings for a DB instance. You can change one or more database configuration parameters by specifying these parameters and the new values in the request. To learn what modifications you can make to your DB instance, call DescribeValidDBInstanceModifications before you call ModifyDBInstance.

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

DBInstanceIdentifier

The identifier of DB instance to modify. This value is stored as a lowercase string.

Constraints:

• Must match the identifier of an existing DB instance.

Type: String

Required: Yes

AllocatedStorage

The new amount of storage in gibibytes (GiB) to allocate for the DB instance.

For RDS for Db2, MariaDB, RDS for MySQL, RDS for Oracle, and RDS for PostgreSQL, the value supplied must be at least 10% greater than the current value. Values that are not at least 10% greater than the existing value are rounded up so that they are 10% greater than the current value.

For the valid values for allocated storage for each engine, see CreateDBInstance.

Constraints:

• When you increase the allocated storage for a DB instance that uses Provisioned IOPS (gp3, io1, or io2 storage type), you must also specify the Iops parameter. You can use the current value for Iops.

Type: Integer

Required: No

AllowMajorVersionUpgrade

Specifies whether major version upgrades are allowed. Changing this parameter doesn't result in an outage and the change is asynchronously applied as soon as possible.

This setting doesn't apply to RDS Custom DB instances.

Constraints:

• Major version upgrades must be allowed when specifying a value for the EngineVersion parameter that's a different major version than the DB instance's current version.

Type: Boolean

Required: No

ApplyImmediately

Specifies whether the modifications in this request and any pending modifications are asynchronously applied as soon as possible, regardless of the PreferredMaintenanceWindow setting for the DB instance. By default, this parameter is disabled.

If this parameter is disabled, changes to the DB instance are applied during the next maintenance window. Some parameter changes can cause an outage and are applied on the next call to RebootDBInstance, or the next failure reboot. Review the table of parameters in Modifying a DB Instance in the Amazon RDS User Guide to see the impact of enabling or disabling ApplyImmediately for each modified parameter and to determine when the changes are applied.

Type: Boolean

Required: No

AutomationMode

The automation mode of the RDS Custom DB instance. If full, the DB instance automates monitoring and instance recovery. If all paused, the instance pauses automation for the duration set by ResumeFullAutomationModeMinutes.

Type: String

Valid Values: full | all-paused

Required: No

AutoMinorVersionUpgrade

Specifies whether minor version upgrades are applied automatically to the DB instance during the maintenance window. An outage occurs when all the following conditions are met:

• The automatic upgrade is enabled for the maintenance window.

• A newer minor version is available.

• RDS has enabled automatic patching for the engine version.

If any of the preceding conditions isn't met, Amazon RDS applies the change as soon as possible and doesn't cause an outage.

For an RDS Custom DB instance, don't enable this setting. Otherwise, the operation returns an error.

Type: Boolean

Required: No

AwsBackupRecoveryPointArn

The Amazon Resource Name (ARN) of the recovery point in AWS Backup.

This setting doesn't apply to RDS Custom DB instances.

Type: String

Length Constraints: Minimum length of 43. Maximum length of 350.

Pattern: ^arn:aws[a-z-]*:backup:[-a-z0-9]+:[0-9]{12}:[-a-z]+:([a-z0-9\-]+:)?[a-z][a-z0-9\-]{0,255}$

Required: No

BackupRetentionPeriod

The number of days to retain automated backups. Setting this parameter to a positive number enables backups. Setting this parameter to 0 disables automated backups.

Note

Enabling and disabling backups can result in a brief I/O suspension that lasts from a few seconds to a few minutes, depending on the size and class of your DB instance.

These changes are applied during the next maintenance window unless the ApplyImmediately parameter is enabled for this request. If you change the parameter from one non-zero value to another non-zero value, the change is asynchronously applied as soon as possible.

This setting doesn't apply to Amazon Aurora DB instances. The retention period for automated backups is managed by the DB cluster. For more information, see ModifyDBCluster.

Default: Uses existing setting

Constraints:

• Must be a value from 0 to 35.

• Can't be set to 0 if the DB instance is a source to read replicas.

• Can't be set to 0 for an RDS Custom for Oracle DB instance.

Type: Integer

Required: No

CACertificateIdentifier

The CA certificate identifier to use for the DB instance's server certificate.

This setting doesn't apply to RDS Custom DB instances.

For more information, see Using SSL/TLS to encrypt a connection to a DB instance in the Amazon RDS User Guide and Using SSL/TLS to encrypt a connection to a DB cluster in the Amazon Aurora User Guide.

Type: String

Required: No

CertificateRotationRestart

Specifies whether the DB instance is restarted when you rotate your SSL/TLS certificate.

By default, the DB instance is restarted when you rotate your SSL/TLS certificate. The certificate is not updated until the DB instance is restarted.

Important

Set this parameter only if you are not using SSL/TLS to connect to the DB instance.

If you are using SSL/TLS to connect to the DB instance, follow the appropriate instructions for your DB engine to rotate your SSL/TLS certificate:

• For more information about rotating your SSL/TLS certificate for RDS DB engines, see Rotating Your SSL/TLS Certificate. in the Amazon RDS User Guide.

• For more information about rotating your SSL/TLS certificate for Aurora DB engines, see Rotating Your SSL/TLS Certificate in the Amazon Aurora User Guide.

This setting doesn't apply to RDS Custom DB instances.

Type: Boolean

Required: No

CloudwatchLogsExportConfiguration

The log types to be enabled for export to CloudWatch Logs for a specific DB instance.

A change to the CloudwatchLogsExportConfiguration parameter is always applied to the DB instance immediately. Therefore, the ApplyImmediately parameter has no effect.

This setting doesn't apply to RDS Custom DB instances.

Type: CloudwatchLogsExportConfiguration object

Required: No

CopyTagsToSnapshot

Specifies whether to copy all tags from the DB instance to snapshots of the DB instance. By default, tags aren't copied.

This setting doesn't apply to Amazon Aurora DB instances. Copying tags to snapshots is managed by the DB cluster. Setting this value for an Aurora DB instance has no effect on the DB cluster setting. For more information, see ModifyDBCluster.

Type: Boolean

Required: No

DBInstanceClass

The new compute and memory capacity of the DB instance, for example db.m4.large. Not all DB instance classes are available in all AWS Regions, or for all database engines. For the full list of DB instance classes, and availability for your engine, see DB Instance Class in the Amazon RDS User Guide or Aurora DB instance classes in the Amazon Aurora User Guide. For RDS Custom, see DB instance class support for RDS Custom for Oracle and DB instance class support for RDS Custom for SQL Server.

If you modify the DB instance class, an outage occurs during the change. The change is applied during the next maintenance window, unless you specify ApplyImmediately in your request.

Default: Uses existing setting

Constraints:

• If you are modifying the DB instance class and upgrading the engine version at the same time, the currently running engine version must be supported on the specified DB instance class. Otherwise, the operation returns an error. In this case, first run the operation to upgrade the engine version, and then run it again to modify the DB instance class.

Type: String

Required: No

DBParameterGroupName

The name of the DB parameter group to apply to the DB instance.

Changing this setting doesn't result in an outage. The parameter group name itself is changed immediately, but the actual parameter changes are not applied until you reboot the instance without failover. In this case, the DB instance isn't rebooted automatically, and the parameter changes aren't applied during the next maintenance window. However, if you modify dynamic parameters in the newly associated DB parameter group, these changes are applied immediately without a reboot.

This setting doesn't apply to RDS Custom DB instances.

Default: Uses existing setting

Constraints:

• Must be in the same DB parameter group family as the DB instance.

Type: String

Required: No

DBPortNumber

The port number on which the database accepts connections.

The value of the DBPortNumber parameter must not match any of the port values specified for options in the option group for the DB instance.

If you change the DBPortNumber value, your database restarts regardless of the value of the ApplyImmediately parameter.

This setting doesn't apply to RDS Custom DB instances.

Valid Values: 1150-65535

Default:

• Amazon Aurora - 3306

• RDS for Db2 - 50000

• RDS for MariaDB - 3306

• RDS for Microsoft SQL Server - 1433

• RDS for MySQL - 3306

• RDS for Oracle - 1521

• RDS for PostgreSQL - 5432

Constraints:

• For RDS for Microsoft SQL Server, the value can't be 1234, 1434, 3260, 3343, 3389, 47001, or 49152-49156.

Type: Integer

Required: No

DBSecurityGroups.DBSecurityGroupName.N

A list of DB security groups to authorize on this DB instance. Changing this setting doesn't result in an outage and the change is asynchronously applied as soon as possible.

This setting doesn't apply to RDS Custom DB instances.

Constraints:

• If supplied, must match existing DB security groups.

Type: Array of strings

Required: No

DBSubnetGroupName

The new DB subnet group for the DB instance. You can use this parameter to move your DB instance to a different VPC. If your DB instance isn't in a VPC, you can also use this parameter to move your DB instance into a VPC. For more information, see Working with a DB instance in a VPC in the Amazon RDS User Guide.

Changing the subnet group causes an outage during the change. The change is applied during the next maintenance window, unless you enable ApplyImmediately.

This setting doesn't apply to RDS Custom DB instances.

Constraints:

• If supplied, must match existing DB subnet group.

Example: mydbsubnetgroup

Type: String

Required: No

DedicatedLogVolume

Indicates whether the DB instance has a dedicated log volume (DLV) enabled.

Type: Boolean

Required: No

DeletionProtection

Specifies whether the DB instance has deletion protection enabled. The database can't be deleted when deletion protection is enabled. By default, deletion protection isn't enabled. For more information, see Deleting a DB Instance.

This setting doesn't apply to Amazon Aurora DB instances. You can enable or disable deletion protection for the DB cluster. For more information, see ModifyDBCluster. DB instances in a DB cluster can be deleted even when deletion protection is enabled for the DB cluster.

Type: Boolean

Required: No

DisableDomain

Specifies whether to remove the DB instance from the Active Directory domain.

Type: Boolean

Required: No

Domain

The Active Directory directory ID to move the DB instance to. Specify none to remove the instance from its current domain. You must create the domain before this operation. Currently, you can create only Db2, MySQL, Microsoft SQL Server, Oracle, and PostgreSQL DB instances in an Active Directory Domain.

For more information, see Kerberos Authentication in the Amazon RDS User Guide.

This setting doesn't apply to RDS Custom DB instances.

Type: String

Required: No

DomainAuthSecretArn

The ARN for the Secrets Manager secret with the credentials for the user joining the domain.

Example: arn:aws:secretsmanager:region:account-number:secret:myselfmanagedADtestsecret-123456

Type: String

Required: No

DomainDnsIps.member.N

The IPv4 DNS IP addresses of your primary and secondary Active Directory domain controllers.

Constraints:

• Two IP addresses must be provided. If there isn't a secondary domain controller, use the IP address of the primary domain controller for both entries in the list.

Example: 123.124.125.126,234.235.236.237

Type: Array of strings

Required: No

DomainFqdn

The fully qualified domain name (FQDN) of an Active Directory domain.

Constraints:

• Can't be longer than 64 characters.

Example: mymanagedADtest.mymanagedAD.mydomain

Type: String

Required: No

DomainIAMRoleName

The name of the IAM role to use when making API calls to the Directory Service.

This setting doesn't apply to RDS Custom DB instances.

Type: String

Required: No

DomainOu

The Active Directory organizational unit for your DB instance to join.

Constraints:

• Must be in the distinguished name format.

• Can't be longer than 64 characters.

Example: OU=mymanagedADtestOU,DC=mymanagedADtest,DC=mymanagedAD,DC=mydomain

Type: String

Required: No

EnableCustomerOwnedIp

Specifies whether to enable a customer-owned IP address (CoIP) for an RDS on Outposts DB instance.

A CoIP provides local or external connectivity to resources in your Outpost subnets through your on-premises network. For some use cases, a CoIP can provide lower latency for connections to the DB instance from outside of its virtual private cloud (VPC) on your local network.

For more information about RDS on Outposts, see Working with Amazon RDS on AWS Outposts in the Amazon RDS User Guide.

For more information about CoIPs, see Customer-owned IP addresses in the AWS Outposts User Guide.

Type: Boolean

Required: No

EnableIAMDatabaseAuthentication

Specifies whether to enable mapping of AWS Identity and Access Management (IAM) accounts to database accounts. By default, mapping isn't enabled.

This setting doesn't apply to Amazon Aurora. Mapping AWS IAM accounts to database accounts is managed by the DB cluster.

For more information about IAM database authentication, see IAM Database Authentication for MySQL and PostgreSQL in the Amazon RDS User Guide.

This setting doesn't apply to RDS Custom DB instances.

Type: Boolean

Required: No

EnablePerformanceInsights

Specifies whether to enable Performance Insights for the DB instance.

For more information, see Using Amazon Performance Insights in the Amazon RDS User Guide.

This setting doesn't apply to RDS Custom DB instances.

Type: Boolean

Required: No

Engine

The target Oracle DB engine when you convert a non-CDB to a CDB. This intermediate step is necessary to upgrade an Oracle Database 19c non-CDB to an Oracle Database 21c CDB.

Note the following requirements:

• Make sure that you specify oracle-ee-cdb or oracle-se2-cdb.

• Make sure that your DB engine runs Oracle Database 19c with an April 2021 or later RU.

Note the following limitations:

• You can't convert a CDB to a non-CDB.

• You can't convert a replica database.

• You can't convert a non-CDB to a CDB and upgrade the engine version in the same command.

• You can't convert the existing custom parameter or option group when it has options or parameters that are permanent or persistent. In this situation, the DB instance reverts to the default option and parameter group. To avoid reverting to the default, specify a new parameter group with --db-parameter-group-name and a new option group with --option-group-name.

Type: String

Required: No

EngineVersion

The version number of the database engine to upgrade to. Changing this parameter results in an outage and the change is applied during the next maintenance window unless the ApplyImmediately parameter is enabled for this request.

For major version upgrades, if a nondefault DB parameter group is currently in use, a new DB parameter group in the DB parameter group family for the new engine version must be specified. The new DB parameter group can be the default for that DB parameter group family.

If you specify only a major version, Amazon RDS updates the DB instance to the default minor version if the current minor version is lower. For information about valid engine versions, see CreateDBInstance, or call DescribeDBEngineVersions.

If the instance that you're modifying is acting as a read replica, the engine version that you specify must be the same or higher than the version that the source DB instance or cluster is running.

In RDS Custom for Oracle, this parameter is supported for read replicas only if they are in the PATCH_DB_FAILURE lifecycle.

Constraints:

• If you are upgrading the engine version and modifying the DB instance class at the same time, the currently running engine version must be supported on the specified DB instance class. Otherwise, the operation returns an error. In this case, first run the operation to upgrade the engine version, and then run it again to modify the DB instance class.

Type: String

Required: No

Iops

The new Provisioned IOPS (I/O operations per second) value for the RDS instance.

Changing this setting doesn't result in an outage and the change is applied during the next maintenance window unless the ApplyImmediately parameter is enabled for this request. If you are migrating from Provisioned IOPS to standard storage, set this value to 0. The DB instance will require a reboot for the change in storage type to take effect.

If you choose to migrate your DB instance from using standard storage to using Provisioned IOPS, or from using Provisioned IOPS to using standard storage, the process can take time. The duration of the migration depends on several factors such as database load, storage size, storage type (standard or Provisioned IOPS), amount of IOPS provisioned (if any), and the number of prior scale storage operations. Typical migration times are under 24 hours, but the process can take up to several days in some cases. During the migration, the DB instance is available for use, but might experience performance degradation. While the migration takes place, nightly backups for the instance are suspended. No other Amazon RDS operations can take place for the instance, including modifying the instance, rebooting the instance, deleting the instance, creating a read replica for the instance, and creating a DB snapshot of the instance.

Constraints:

• For RDS for MariaDB, RDS for MySQL, RDS for Oracle, and RDS for PostgreSQL - The value supplied must be at least 10% greater than the current value. Values that are not at least 10% greater than the existing value are rounded up so that they are 10% greater than the current value.

• When you increase the Provisioned IOPS, you must also specify the AllocatedStorage parameter. You can use the current value for AllocatedStorage.

Default: Uses existing setting

Type: Integer

Required: No

LicenseModel

The license model for the DB instance.

This setting doesn't apply to Amazon Aurora or RDS Custom DB instances.

Valid Values:

• RDS for Db2 - bring-your-own-license

• RDS for MariaDB - general-public-license

• RDS for Microsoft SQL Server - license-included

• RDS for MySQL - general-public-license

• RDS for Oracle - bring-your-own-license | license-included

• RDS for PostgreSQL - postgresql-license

Type: String

Required: No

ManageMasterUserPassword

Specifies whether to manage the master user password with AWS Secrets Manager.

If the DB instance doesn't manage the master user password with AWS Secrets Manager, you can turn on this management. In this case, you can't specify MasterUserPassword.

If the DB instance already manages the master user password with AWS Secrets Manager, and you specify that the master user password is not managed with AWS Secrets Manager, then you must specify MasterUserPassword. In this case, Amazon RDS deletes the secret and uses the new password for the master user specified by MasterUserPassword.

For more information, see Password management with AWS Secrets Manager in the Amazon RDS User Guide.

Constraints:

• Can't manage the master user password with AWS Secrets Manager if MasterUserPassword is specified.

Type: Boolean

Required: No

MasterUserPassword

The new password for the master user.

Changing this parameter doesn't result in an outage and the change is asynchronously applied as soon as possible. Between the time of the request and the completion of the request, the MasterUserPassword element exists in the PendingModifiedValues element of the operation response.

Note

Amazon RDS API operations never return the password, so this operation provides a way to regain access to a primary instance user if the password is lost. This includes restoring privileges that might have been accidentally revoked.

This setting doesn't apply to the following DB instances:

• Amazon Aurora (The password for the master user is managed by the DB cluster. For more information, see ModifyDBCluster.)

• RDS Custom

Default: Uses existing setting

Constraints:

• Can't be specified if ManageMasterUserPassword is turned on.

• Can include any printable ASCII character except "/", """, or "@". For RDS for Oracle, can't include the "&" (ampersand) or the "'" (single quotes) character.

Length Constraints:

• RDS for Db2 - Must contain from 8 to 255 characters.

• RDS for MariaDB - Must contain from 8 to 41 characters.

• RDS for Microsoft SQL Server - Must contain from 8 to 128 characters.

• RDS for MySQL - Must contain from 8 to 41 characters.

• RDS for Oracle - Must contain from 8 to 30 characters.

• RDS for PostgreSQL - Must contain from 8 to 128 characters.

Type: String

Required: No

MasterUserSecretKmsKeyId

The AWS KMS key identifier to encrypt a secret that is automatically generated and managed in AWS Secrets Manager.

This setting is valid only if both of the following conditions are met:

• The DB instance doesn't manage the master user password in AWS Secrets Manager.

  If the DB instance already manages the master user password in AWS Secrets Manager, you can't change the KMS key used to encrypt the secret.

• You are turning on ManageMasterUserPassword to manage the master user password in AWS Secrets Manager.

  If you are turning on ManageMasterUserPassword and don't specify MasterUserSecretKmsKeyId, then the aws/secretsmanager KMS key is used to encrypt the secret. If the secret is in a different AWS account, then you can't use the aws/secretsmanager KMS key to encrypt the secret, and you must use a customer managed KMS key.

The AWS KMS key identifier is the key ARN, key ID, alias ARN, or alias name for the KMS key. To use a KMS key in a different AWS account, specify the key ARN or alias ARN.

There is a default KMS key for your AWS account. Your AWS account has a different default KMS key for each AWS Region.

Type: String

Required: No

MaxAllocatedStorage

The upper limit in gibibytes (GiB) to which Amazon RDS can automatically scale the storage of the DB instance.

For more information about this setting, including limitations that apply to it, see Managing capacity automatically with Amazon RDS storage autoscaling in the Amazon RDS User Guide.

This setting doesn't apply to RDS Custom DB instances.

Type: Integer

Required: No

MonitoringInterval

The interval, in seconds, between points when Enhanced Monitoring metrics are collected for the DB instance. To disable collection of Enhanced Monitoring metrics, specify 0.

If MonitoringRoleArn is specified, set MonitoringInterval to a value other than 0.

This setting doesn't apply to RDS Custom DB instances.

Valid Values: 0 | 1 | 5 | 10 | 15 | 30 | 60

Default: 0

Type: Integer

Required: No

MonitoringRoleArn

The ARN for the IAM role that permits RDS to send enhanced monitoring metrics to Amazon CloudWatch Logs. For example, arn:aws:iam:123456789012:role/emaccess. For information on creating a monitoring role, see To create an IAM role for Amazon RDS Enhanced Monitoring in the Amazon RDS User Guide.

If MonitoringInterval is set to a value other than 0, supply a MonitoringRoleArn value.

This setting doesn't apply to RDS Custom DB instances.

Type: String

Required: No

MultiAZ

Specifies whether the DB instance is a Multi-AZ deployment. Changing this parameter doesn't result in an outage. The change is applied during the next maintenance window unless the ApplyImmediately parameter is enabled for this request.

This setting doesn't apply to RDS Custom DB instances.

Type: Boolean

Required: No

MultiTenant

Specifies whether the to convert your DB instance from the single-tenant configuration to the multi-tenant configuration. This parameter is supported only for RDS for Oracle CDB instances.

During the conversion, RDS creates an initial tenant database and associates the DB name, master user name, character set, and national character set metadata with this database. The tags associated with the instance also propagate to the initial tenant database. You can add more tenant databases to your DB instance by using the CreateTenantDatabase operation.

Important

The conversion to the multi-tenant configuration is permanent and irreversible, so you can't later convert back to the single-tenant configuration. When you specify this parameter, you must also specify ApplyImmediately.

Type: Boolean

Required: No

NetworkType

The network type of the DB instance.

The network type is determined by the DBSubnetGroup specified for the DB instance. A DBSubnetGroup can support only the IPv4 protocol or the IPv4 and the IPv6 protocols (DUAL).

For more information, see Working with a DB instance in a VPC in the Amazon RDS User Guide.

Valid Values: IPV4 | DUAL

Type: String

Required: No

NewDBInstanceIdentifier

The new identifier for the DB instance when renaming a DB instance. When you change the DB instance identifier, an instance reboot occurs immediately if you enable ApplyImmediately, or will occur during the next maintenance window if you disable ApplyImmediately. This value is stored as a lowercase string.

This setting doesn't apply to RDS Custom DB instances.

Constraints:

• Must contain from 1 to 63 letters, numbers, or hyphens.

• The first character must be a letter.

• Can't end with a hyphen or contain two consecutive hyphens.

Example: mydbinstance

Type: String

Required: No

OptionGroupName

The option group to associate the DB instance with.

Changing this parameter doesn't result in an outage, with one exception. If the parameter change results in an option group that enables OEM, it can cause a brief period, lasting less than a second, during which new connections are rejected but existing connections aren't interrupted.

The change is applied during the next maintenance window unless the ApplyImmediately parameter is enabled for this request.

Permanent options, such as the TDE option for Oracle Advanced Security TDE, can't be removed from an option group, and that option group can't be removed from a DB instance after it is associated with a DB instance.

This setting doesn't apply to RDS Custom DB instances.

Type: String

Required: No

PerformanceInsightsKMSKeyId

The AWS KMS key identifier for encryption of Performance Insights data.

The AWS KMS key identifier is the key ARN, key ID, alias ARN, or alias name for the KMS key.

If you don't specify a value for PerformanceInsightsKMSKeyId, then Amazon RDS uses your default KMS key. There is a default KMS key for your AWS account. Your AWS account has a different default KMS key for each AWS Region.

This setting doesn't apply to RDS Custom DB instances.

Type: String

Required: No

PerformanceInsightsRetentionPeriod

The number of days to retain Performance Insights data.

This setting doesn't apply to RDS Custom DB instances.

Valid Values:

• 7

• month * 31, where month is a number of months from 1-23. Examples: 93 (3 months * 31), 341 (11 months * 31), 589 (19 months * 31)

• 731

Default: 7 days

If you specify a retention period that isn't valid, such as 94, Amazon RDS returns an error.

Type: Integer

Required: No

PreferredBackupWindow

The daily time range during which automated backups are created if automated backups are enabled, as determined by the BackupRetentionPeriod parameter. Changing this parameter doesn't result in an outage and the change is asynchronously applied as soon as possible. The default is a 30-minute window selected at random from an 8-hour block of time for each AWS Region. For more information, see Backup window in the Amazon RDS User Guide.

This setting doesn't apply to Amazon Aurora DB instances. The daily time range for creating automated backups is managed by the DB cluster. For more information, see ModifyDBCluster.

Constraints:

• Must be in the format hh24:mi-hh24:mi.

• Must be in Universal Coordinated Time (UTC).

• Must not conflict with the preferred maintenance window.

• Must be at least 30 minutes.

Type: String

Required: No

PreferredMaintenanceWindow

The weekly time range during which system maintenance can occur, which might result in an outage. Changing this parameter doesn't result in an outage, except in the following situation, and the change is asynchronously applied as soon as possible. If there are pending actions that cause a reboot, and the maintenance window is changed to include the current time, then changing this parameter causes a reboot of the DB instance. If you change this window to the current time, there must be at least 30 minutes between the current time and end of the window to ensure pending changes are applied.

For more information, see Amazon RDS Maintenance Window in the Amazon RDS User Guide.

Default: Uses existing setting

Constraints:

• Must be in the format ddd:hh24:mi-ddd:hh24:mi.

• The day values must be mon | tue | wed | thu | fri | sat | sun.

• Must be in Universal Coordinated Time (UTC).

• Must not conflict with the preferred backup window.

• Must be at least 30 minutes.

Type: String

Required: No

ProcessorFeatures.ProcessorFeature.N

The number of CPU cores and the number of threads per core for the DB instance class of the DB instance.

This setting doesn't apply to RDS Custom DB instances.

Type: Array of ProcessorFeature objects

Required: No

PromotionTier

The order of priority in which an Aurora Replica is promoted to the primary instance after a failure of the existing primary instance. For more information, see Fault Tolerance for an Aurora DB Cluster in the Amazon Aurora User Guide.

This setting doesn't apply to RDS Custom DB instances.

Default: 1

Valid Values: 0 - 15

Type: Integer

Required: No

PubliclyAccessible

Specifies whether the DB instance is publicly accessible.

When the DB instance is publicly accessible and you connect from outside of the DB instance's virtual private cloud (VPC), its Domain Name System (DNS) endpoint resolves to the public IP address. When you connect from within the same VPC as the DB instance, the endpoint resolves to the private IP address. Access to the DB instance is ultimately controlled by the security group it uses. That public access isn't permitted if the security group assigned to the DB instance doesn't permit it.

When the DB instance isn't publicly accessible, it is an internal DB instance with a DNS name that resolves to a private IP address.

PubliclyAccessible only applies to DB instances in a VPC. The DB instance must be part of a public subnet and PubliclyAccessible must be enabled for it to be publicly accessible.

Changes to the PubliclyAccessible parameter are applied immediately regardless of the value of the ApplyImmediately parameter.

Type: Boolean

Required: No

ReplicaMode

A value that sets the open mode of a replica database to either mounted or read-only.

Note

Currently, this parameter is only supported for Oracle DB instances.

Mounted DB replicas are included in Oracle Enterprise Edition. The main use case for mounted replicas is cross-Region disaster recovery. The primary database doesn't use Active Data Guard to transmit information to the mounted replica. Because it doesn't accept user connections, a mounted replica can't serve a read-only workload. For more information, see Working with Oracle Read Replicas for Amazon RDS in the Amazon RDS User Guide.

This setting doesn't apply to RDS Custom DB instances.

Type: String

Valid Values: open-read-only | mounted

Required: No

ResumeFullAutomationModeMinutes

The number of minutes to pause the automation. When the time period ends, RDS Custom resumes full automation.

Default: 60

Constraints:

• Must be at least 60.

• Must be no more than 1,440.

Type: Integer

Required: No

RotateMasterUserPassword

Specifies whether to rotate the secret managed by AWS Secrets Manager for the master user password.

This setting is valid only if the master user password is managed by RDS in AWS Secrets Manager for the DB cluster. The secret value contains the updated password.

For more information, see Password management with AWS Secrets Manager in the Amazon RDS User Guide.

Constraints:

• You must apply the change immediately when rotating the master user password.

Type: Boolean

Required: No

StorageThroughput

The storage throughput value for the DB instance.

This setting applies only to the gp3 storage type.

This setting doesn't apply to Amazon Aurora or RDS Custom DB instances.

Type: Integer

Required: No

StorageType

The storage type to associate with the DB instance.

If you specify io1, io2, or gp3 you must also include a value for the Iops parameter.

If you choose to migrate your DB instance from using standard storage to using Provisioned IOPS, or from using Provisioned IOPS to using standard storage, the process can take time. The duration of the migration depends on several factors such as database load, storage size, storage type (standard or Provisioned IOPS), amount of IOPS provisioned (if any), and the number of prior scale storage operations. Typical migration times are under 24 hours, but the process can take up to several days in some cases. During the migration, the DB instance is available for use, but might experience performance degradation. While the migration takes place, nightly backups for the instance are suspended. No other Amazon RDS operations can take place for the instance, including modifying the instance, rebooting the instance, deleting the instance, creating a read replica for the instance, and creating a DB snapshot of the instance.

Valid Values: gp2 | gp3 | io1 | io2 | standard

Default: io1, if the Iops parameter is specified. Otherwise, gp2.

Type: String

Required: No

TdeCredentialArn

The ARN from the key store with which to associate the instance for TDE encryption.

This setting doesn't apply to RDS Custom DB instances.

Type: String

Required: No

TdeCredentialPassword

The password for the given ARN from the key store in order to access the device.

This setting doesn't apply to RDS Custom DB instances.

Type: String

Required: No

UseDefaultProcessorFeatures

Specifies whether the DB instance class of the DB instance uses its default processor features.

This setting doesn't apply to RDS Custom DB instances.

Type: Boolean

Required: No

VpcSecurityGroupIds.VpcSecurityGroupId.N

A list of Amazon EC2 VPC security groups to associate with this DB instance. This change is asynchronously applied as soon as possible.

This setting doesn't apply to the following DB instances:

• Amazon Aurora (The associated list of EC2 VPC security groups is managed by the DB cluster. For more information, see ModifyDBCluster.)

• RDS Custom

Constraints:

• If supplied, must match existing VPC security group IDs.

Type: Array of strings

Required: No

Response Elements

The following element is returned by the service.

DBInstance

Contains the details of an Amazon RDS DB instance.

This data type is used as a response element in the operations CreateDBInstance, CreateDBInstanceReadReplica, DeleteDBInstance, DescribeDBInstances, ModifyDBInstance, PromoteReadReplica, RebootDBInstance, RestoreDBInstanceFromDBSnapshot, RestoreDBInstanceFromS3, RestoreDBInstanceToPointInTime, StartDBInstance, and StopDBInstance.

Type: DBInstance object

Errors

For information about the errors that are common to all actions, see Common Errors.

AuthorizationNotFound

The specified CIDR IP range or Amazon EC2 security group might not be authorized for the specified DB security group.

Or, RDS might not be authorized to perform necessary actions using IAM on your behalf.

HTTP Status Code: 404

BackupPolicyNotFoundFault

This error has been deprecated.

HTTP Status Code: 404

CertificateNotFound

CertificateIdentifier doesn't refer to an existing certificate.

HTTP Status Code: 404

DBInstanceAlreadyExists

The user already has a DB instance with the given identifier.

HTTP Status Code: 400

DBInstanceNotFound

DBInstanceIdentifier doesn't refer to an existing DB instance.

HTTP Status Code: 404

DBParameterGroupNotFound

DBParameterGroupName doesn't refer to an existing DB parameter group.

HTTP Status Code: 404

DBSecurityGroupNotFound

DBSecurityGroupName doesn't refer to an existing DB security group.

HTTP Status Code: 404

DBUpgradeDependencyFailure

The DB upgrade failed because a resource the DB depends on can't be modified.

HTTP Status Code: 400

DomainNotFoundFault

Domain doesn't refer to an existing Active Directory domain.

HTTP Status Code: 404

InsufficientDBInstanceCapacity

The specified DB instance class isn't available in the specified Availability Zone.

HTTP Status Code: 400

InvalidDBClusterStateFault

The requested operation can't be performed while the cluster is in this state.

HTTP Status Code: 400

InvalidDBInstanceState

The DB instance isn't in a valid state.

HTTP Status Code: 400

InvalidDBSecurityGroupState

The state of the DB security group doesn't allow deletion.

HTTP Status Code: 400

InvalidVPCNetworkStateFault

The DB subnet group doesn't cover all Availability Zones after it's created because of users' change.

HTTP Status Code: 400

KMSKeyNotAccessibleFault

An error occurred accessing an AWS KMS key.

HTTP Status Code: 400

NetworkTypeNotSupported

The network type is invalid for the DB instance. Valid nework type values are IPV4 and DUAL.

HTTP Status Code: 400

OptionGroupNotFoundFault

The specified option group could not be found.

HTTP Status Code: 404

ProvisionedIopsNotAvailableInAZFault

Provisioned IOPS not available in the specified Availability Zone.

HTTP Status Code: 400

StorageQuotaExceeded

The request would result in the user exceeding the allowed amount of storage available across all DB instances.

HTTP Status Code: 400

StorageTypeNotSupported

The specified StorageType can't be associated with the DB instance.

HTTP Status Code: 400

TenantDatabaseQuotaExceeded

You attempted to create more tenant databases than are permitted in your AWS account.

HTTP Status Code: 400

Examples

Example

This example illustrates one usage of ModifyDBInstance.

Sample Request

https://rds.us-east-1.amazonaws.com/
   ?Action=ModifyDBInstance
   &AllocatedStorage=20
   &DBInstanceIdentifier=myawsuser-dbi04
   &SignatureMethod=HmacSHA256
   &SignatureVersion=4
   &Version=2014-10-31
   &X-Amz-Algorithm=AWS4-HMAC-SHA256
   &X-Amz-Credential=AKIADQKE4SARGYLE/20140425/us-east-1/rds/aws4_request
   &X-Amz-Date=20140425T192732Z
   &X-Amz-SignedHeaders=content-type;host;user-agent;x-amz-content-sha256;x-amz-date
   &X-Amz-Signature=1dc9dd716f4855e9bdf188c70f1cf9f6251b070b68b81103b59ec70c3e7854b3

Sample Response

<ModifyDBInstanceResponse xmlns="http://rds.amazonaws.com/doc/2014-10-31/">
  <ModifyDBInstanceResult>
    <DBInstance>
      <BackupRetentionPeriod>7</BackupRetentionPeriod>
      <DBInstanceStatus>available</DBInstanceStatus>
      <MultiAZ>true</MultiAZ>
      <VpcSecurityGroups/>
      <DBInstanceIdentifier>myawsuser-dbi04</DBInstanceIdentifier>
      <PreferredBackupWindow>10:03-10:33</PreferredBackupWindow>
      <PreferredMaintenanceWindow>wed:03:32-wed:04:02</PreferredMaintenanceWindow>
      <AvailabilityZone>us-east-1a</AvailabilityZone>
      <ReadReplicaDBInstanceIdentifiers/>
      <LatestRestorableTime>2014-04-25T19:25:00Z</LatestRestorableTime>
      <Engine>mysql</Engine>
      <PendingModifiedValues>
        <AllocatedStorage>20</AllocatedStorage>
      </PendingModifiedValues>
      <LicenseModel>general-public-license</LicenseModel>
      <DBParameterGroups>
        <DBParameterGroup>
          <ParameterApplyStatus>in-sync</ParameterApplyStatus>
          <DBParameterGroupName>default.mysql5.6</DBParameterGroupName>
        </DBParameterGroup>
      </DBParameterGroups>
      <Endpoint>
        <Port>3306</Port>
        <Address>myawsuser-dbi04.cg037hpkuyjt.us-east-1.rds.amazonaws.com</Address>
      </Endpoint>
      <EngineVersion>5.6.13</EngineVersion>
      <SecondaryAvailabilityZone>us-east-1b</SecondaryAvailabilityZone>
      <OptionGroupMemberships>
        <OptionGroupMembership>
          <OptionGroupName>default:mysql-5-6</OptionGroupName>
          <Status>in-sync</Status>
        </OptionGroupMembership>
      </OptionGroupMemberships>
      <PubliclyAccessible>true</PubliclyAccessible>
      <DBSecurityGroups>
        <DBSecurityGroup>
          <Status>active</Status>
          <DBSecurityGroupName>default</DBSecurityGroupName>
        </DBSecurityGroup>
      </DBSecurityGroups>
      <DBName>myawsuser_db04</DBName>
      <AutoMinorVersionUpgrade>true</AutoMinorVersionUpgrade>
      <InstanceCreateTime>2014-04-25T18:07:51.508Z</InstanceCreateTime>
      <AllocatedStorage>15</AllocatedStorage>
      <MasterUsername>myawsuser</MasterUsername>
      <DBInstanceClass>db.m1.small</DBInstanceClass>
    </DBInstance>
  </ModifyDBInstanceResult>
  <ResponseMetadata>
    <RequestId>f643f1ac-bbfe-11d3-f4c6-37db295f7674</RequestId>
  </ResponseMetadata>
</ModifyDBInstanceResponse>

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following:

• AWS Command Line Interface

• AWS SDK for .NET

• AWS SDK for C++

• AWS SDK for Go v2

• AWS SDK for Java V2

• AWS SDK for JavaScript V3

• AWS SDK for PHP V3

• AWS SDK for Python

• AWS SDK for Ruby V3