| Region |
The region where the RDS instance resides.
- If your application is deployed on an Elastic Compute Service (ECS) instance, the
RDS instance must reside in the same region as the ECS instance. For example, the
RDS instance and the ECS instance can both reside in the China (Hangzhou) region.
If the RDS instance and the ECS instance reside in different regions, they cannot
communicate over an internal network and therefore they cannot deliver optimal performance.
- If your application is deployed on an on-premises server or computer, we recommend
that you select a region that is in close proximity to the on-premises server or computer.
|
| Database Engine |
The database engine and version that the RDS instance runs. Select MySQL. Only MySQL 5.6, MySQL 5.7, and MySQL 8.0 are supported.
Note The available database engines and versions vary based on the region that you select.
|
| Edition |
- Basic: In the RDS Basic Edition, the database system consists of only a primary RDS instance.
The RDS Basic Edition is cost-effective and is suitable for learning and testing.
- High-availability: This is the recommended edition. In the RDS High-availability Edition, the database
system consists of a primary RDS instance and a secondary RDS instance. These instances
work in the high availability architecture. The RDS High-availability Edition is suitable
for production environments.
- Enterprise: In the RDS Enterprise Edition, the database system consists of a primary RDS instance,
a secondary RDS instance, and a logger RDS instance. The RDS Enterprise Edition is
suitable for financial institutions that have high requirements for reliability.
|
| Storage Type |
- Local SSD: A local SSD resides on the same host as the database engine. You can store data
on local SSDs to reduce I/O latency.
- ESSD: Enhanced SSDs (ESSDs) come in three performance levels (PLs).
- ESSD PL1: An ESSD of PL1 is a regular ESSD.
- ESSD PL2: An ESSD of PL2 delivers IOPS and throughput that are approximately twice
higher than the IOPS and throughput delivered by an ESSD of PL1.
- ESSD PL3: An ESSD of PL3 delivers IOPS that is up to 20 times higher than the IOPS
delivered by an ESSD of PL1. An ESSD of PL3 also delivers throughput that is up to
11 times higher than the throughput delivered by an ESSD of PL1. ESSDs of PL3 are
suitable for business scenarios in which highly concurrent requests must be processed
with high I/O performance and at low read and write latencies.
- Standard SSD: A standard SSD is an elastic block storage device that is built on top of the distributed
storage architecture. You can store data on standard SSDs to separate computing from
storage.
Note
- The available storage types vary based on the instance type and RDS edition that you
select.
- If you select the ESSD or standard SSD storage type, you can select the Disk Encryption option. Disk encryption improves data security. For more information, see Configure disk encryption for an ApsaraDB RDS for MySQL instance.
- For more information about the storage types that are supported by ApsaraDB RDS, see
Storage types.
|
| Zone of Primary Node |
The zone where the RDS instance resides. Each zone is an independent physical location
within a region. For example, the China (Hangzhou) region contains Zone H, Zone I,
and Zone J. ApsaraDB RDS supports the following two deployment methods:
- Multi-zone Deployment: The primary RDS instance and the secondary RDS instance reside in different zones
to provide zone-disaster recovery. This is the recommended deployment method.
- Single-zone Deployment: The primary RDS instance and the secondary RDS instance reside in the same zone.
Note If you select the RDS Basic Edition, you can select only the Single-zone Deployment method.
|
| Instance Type |
The instance type of the RDS instance. Before you select an instance type, you must
select an instance family.
- General-purpose (Entry-level): A general-purpose instance exclusively occupies the allocated memory and I/O resources.
However, it shares CPU and storage resources with the other general-purpose instances
that are deployed on the same host.
- Dedicated (Enterprise-level): A dedicated instance exclusively occupies the allocated CPU, memory, storage, and
I/O resources. The dedicated host instance family is the highest configuration of
the dedicated instance family. A dedicated host instance occupies all the CPU, memory,
storage, and I/O resources on the host where the instance is deployed.
|
| Capacity |
The storage capacity that the RDS instance has available to store data files, system
files, binary log files, and transaction files. You can adjust the storage capacity
in increments of 5 GB.
Note If you select the local SSD storage type, the storage capacity of the RDS instance
may vary based on the instance type. If you select the standard SSD or ESSD storage
type, the storage capacity of the RDS instance does not vary based on the instance
type. For more information, see Primary ApsaraDB RDS instance types.
|
| Backup Retention After Release |
The policy based on which ApsaraDB RDS retains the backup data of the RDS instance
after the RDS instance is released. If the RDS instance contains crucial data, we
recommend that you select Latest or All. This way, you can retrieve the data if the data is lost due to overdue payments.
Note This parameter is displayed only when you set the Billing Method parameter to Subscription.
|