* For example: arn:aws:rds:us-east-2:123456789012:cluster-snapshot:rds:my-aurora-cluster-2019-07-22-16-16
|
| Manual DB snapshot | arn:aws:rds:**:**:snapshot:** For example: arn:aws:rds:us-east-2:123456789012:snapshot:my-mysql-db-snap
|
| Manual DB cluster snapshot | arn:aws:rds:**:**:cluster-snapshot:** For example: arn:aws:rds:us-east-2:123456789012:cluster-snapshot:my-aurora-cluster-snap
|
| DB subnet group | arn:aws:rds:**:**:subgrp:** For example: arn:aws:rds:us-east-2:123456789012:subgrp:my-subnet-10
|
| Global cluster | arn:aws:rds::**:global-cluster:** For example: arn:aws:rds::123456789012:global-cluster:my-aurora-global-cluster-1
|
# Getting an existing ARN for Amazon RDS
Getting an existing ARN
You can get the ARN of an RDS resource by using the AWS Management Console, AWS Command Line Interface (AWS CLI), or RDS API.
## Console
To get an ARN from the AWS Management Console, navigate to the resource you want an ARN for, and view the details for that resource.
For example, you can get the ARN for a DB cluster from the **Configuration** tab of the DB cluster details.
![\[DB cluster ARN.\]](http://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/images/DB-cluster-arn.png)
## AWS CLI
To get an ARN from the AWS CLI for a particular RDS resource, you use the `describe` command for that resource. The following table shows each AWS CLI command, and the ARN property used with the command to get an ARN.
****
[\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/USER_Tagging.ARN.Getting.html)
For example, the following AWS CLI command gets the ARN for a DB instance.
**Example**
For Linux, macOS, or Unix:
```
aws rds describe-db-instances \
--db-instance-identifier DBInstanceIdentifier \
--region us-west-2 \
--query "*[].{DBInstanceIdentifier:DBInstanceIdentifier,DBInstanceArn:DBInstanceArn}"
```
For Windows:
```
aws rds describe-db-instances ^
--db-instance-identifier DBInstanceIdentifier ^
--region us-west-2 ^
--query "*[].{DBInstanceIdentifier:DBInstanceIdentifier,DBInstanceArn:DBInstanceArn}"
```
The output of that command is like the following:
```
[
{
"DBInstanceArn": "arn:aws:rds:us-west-2:account_id:db:instance_id",
"DBInstanceIdentifier": "instance_id"
}
]
```
## RDS API
To get an ARN for a particular RDS resource, you can call the following RDS API operations and use the ARN properties shown following.
****
[\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/USER_Tagging.ARN.Getting.html)
# Amazon Aurora updates
Aurora updates
Amazon Aurora releases updates regularly. Updates are applied to Amazon Aurora DB clusters during system maintenance windows. The timing when updates are applied depends on the Region and maintenance window setting for the DB cluster, and also the type of update. Updates require a database restart, so you typically experience 20–30 seconds of downtime. After this downtime, you can resume using your DB cluster or clusters. You can view or change your maintenance window settings from the [AWS Management Console](https://console.aws.amazon.com/).
**Note**
The time required to reboot your DB instance depends on the crash recovery process, database activity at the time of reboot, and the behavior of your specific DB engine. To improve the reboot time, we recommend that you reduce database activity as much as possible during the reboot process. Reducing database activity reduces rollback activity for in-transit transactions.
For information on operating system updates for Amazon Aurora, see [Operating system updates for Aurora DB clusters](USER_UpgradeDBInstance.Maintenance.md#Aurora_OS_updates).
Some updates are specific to a database engine supported by Aurora. For more information about database engine updates, see the following table.
| Database engine | Updates |
| --- | --- |
| Amazon Aurora MySQL | See [Database engine updates for Amazon Aurora MySQLLong-term support (LTS) and beta releases for Amazon Aurora MySQL](AuroraMySQL.Updates.md) |
| Amazon Aurora PostgreSQL | See [Database engine updates for Amazon Aurora PostgreSQL](AuroraPostgreSQL.Updates.md) |
## Identifying your Amazon Aurora version
Identifying your Amazon Aurora version
Amazon Aurora includes certain features that are general to Aurora and available to all Aurora DB clusters. Aurora includes other features that are specific to a particular database engine that Aurora supports. These features are available only to those Aurora DB clusters that use that database engine, such as Aurora PostgreSQL.
An Aurora DB instance provides two version numbers, the Aurora version number and the Aurora database engine version number. Aurora version numbers use the following format.
```
..
```
To get the Aurora version number from an Aurora DB instance using a particular database engine, use one of the following queries.
| Database engine | Queries |
| --- | --- |
| Amazon Aurora MySQL | SELECT AURORA_VERSION();
SHOW @@aurora_version;
|
| Amazon Aurora PostgreSQL | SELECT AURORA_VERSION();
|