describe-valid-db-instance-modifications¶
Description¶
You can call DescribeValidDBInstanceModifications to learn what modifications you can make to your DB instance. You can use this information when you call ModifyDBInstance .
This command doesn’t apply to RDS Custom.
See also: AWS API Documentation
See ‘aws help’ for descriptions of global parameters.
Synopsis¶
describe-valid-db-instance-modifications
--db-instance-identifier <value>
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]
Options¶
--db-instance-identifier (string)
The customer identifier or the ARN of your DB instance.
--cli-input-json | --cli-input-yaml (string)
Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.
--generate-cli-skeleton (string)
Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command. The generated JSON skeleton is not stable between versions of the AWS CLI and there are no backwards compatibility guarantees in the JSON skeleton generated.
See ‘aws help’ for descriptions of global parameters.
Examples¶
Note
To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.
Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal’s quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .
To describe valid modifications for a DB instance
The following describe-valid-db-instance-modifications example retrieves details about the valid modifications for the specified DB instance.
aws rds describe-valid-db-instance-modifications \
--db-instance-identifier test-instance
Output:
{
"ValidDBInstanceModificationsMessage": {
"ValidProcessorFeatures": [],
"Storage": [
{
"StorageSize": [
{
"Step": 1,
"To": 20,
"From": 20
},
{
"Step": 1,
"To": 6144,
"From": 22
}
],
"ProvisionedIops": [
{
"Step": 1,
"To": 0,
"From": 0
}
],
"IopsToStorageRatio": [
{
"To": 0.0,
"From": 0.0
}
],
"StorageType": "gp2"
},
{
"StorageSize": [
{
"Step": 1,
"To": 6144,
"From": 100
}
],
"ProvisionedIops": [
{
"Step": 1,
"To": 40000,
"From": 1000
}
],
"IopsToStorageRatio": [
{
"To": 50.0,
"From": 1.0
}
],
"StorageType": "io1"
},
{
"StorageSize": [
{
"Step": 1,
"To": 20,
"From": 20
},
{
"Step": 1,
"To": 3072,
"From": 22
}
],
"ProvisionedIops": [
{
"Step": 1,
"To": 0,
"From": 0
}
],
"IopsToStorageRatio": [
{
"To": 0.0,
"From": 0.0
}
],
"StorageType": "magnetic"
}
]
}
}
Output¶
ValidDBInstanceModificationsMessage -> (structure)
Information about valid modifications that you can make to your DB instance. Contains the result of a successful call to the
DescribeValidDBInstanceModificationsaction. You can use this information when you callModifyDBInstance.Storage -> (list)
Valid storage options for your DB instance.
(structure)
Information about valid modifications that you can make to your DB instance. Contains the result of a successful call to the
DescribeValidDBInstanceModificationsaction.StorageType -> (string)
The valid storage types for your DB instance. For example, gp2, io1.
StorageSize -> (list)
The valid range of storage in gibibytes (GiB). For example, 100 to 16384.
(structure)
A range of integer values.
From -> (integer)
The minimum value in the range.
To -> (integer)
The maximum value in the range.
Step -> (integer)
The step value for the range. For example, if you have a range of 5,000 to 10,000, with a step value of 1,000, the valid values start at 5,000 and step up by 1,000. Even though 7,500 is within the range, it isn’t a valid value for the range. The valid values are 5,000, 6,000, 7,000, 8,000…
ProvisionedIops -> (list)
The valid range of provisioned IOPS. For example, 1000-20000.
(structure)
A range of integer values.
From -> (integer)
The minimum value in the range.
To -> (integer)
The maximum value in the range.
Step -> (integer)
The step value for the range. For example, if you have a range of 5,000 to 10,000, with a step value of 1,000, the valid values start at 5,000 and step up by 1,000. Even though 7,500 is within the range, it isn’t a valid value for the range. The valid values are 5,000, 6,000, 7,000, 8,000…
IopsToStorageRatio -> (list)
The valid range of Provisioned IOPS to gibibytes of storage multiplier. For example, 3-10, which means that provisioned IOPS can be between 3 and 10 times storage.
(structure)
A range of double values.
From -> (double)
The minimum value in the range.
To -> (double)
The maximum value in the range.
SupportsStorageAutoscaling -> (boolean)
Whether or not Amazon RDS can automatically scale storage for DB instances that use the new instance class.
ValidProcessorFeatures -> (list)
Valid processor features for your DB instance.
(structure)
Contains the available processor feature information for the DB instance class of a DB instance.
For more information, see Configuring the Processor of the DB Instance Class in the Amazon RDS User Guide.
Name -> (string)
The name of the processor feature. Valid names are
coreCountandthreadsPerCore.DefaultValue -> (string)
The default value for the processor feature of the DB instance class.
AllowedValues -> (string)
The allowed values for the processor feature of the DB instance class.