Region |
The region where you want to deploy the host. The host and the dedicated cluster where
the host resides must be deployed in the same region.
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Host Image |
The operating system (OS) image of the host. Available OS images vary based on the
database engine that you selected when you created the dedicated cluster.
- If you use MySQL and PostgreSQL, you can select AliLinux as the image.
- If you use SQL Server, you can select Windows as the image.
For more information, see Create a dedicated cluster.
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Dedicated Cluster |
The dedicated cluster to which the host belongs. |
Zone |
The zone where the host resides. We recommend that you deploy hosts in different zones
to improve availability.
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Storage Type |
The storage type of the host. You can select Local SSD or Enhanced SSD (ESSD).
Note
- You can change the storage type between different enhanced SSD (ESSD) types. You cannot
change the storage type between local SSDs and ESSDs.
- To change the storage type from Enhanced SSD to ESSD PL2, ensure that the disk space is 465 GB or larger. This is not required when you change
the storage type from ESSD PL2 to ESSD.
- To change the storage type from Enhanced SSD or ESSD PL2 to ESSD PL3, ensure that the disk space is 1,265 GB or larger. This is not required when you
change the storage type from ESSD PL3 to ESSD or ESSD PL2.
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Host Instance Type |
The specification of the host. |
Network Type |
The network type of the host. You can select only VPC.
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VSwitch |
The vSwitch to which the host is connected. If no options are available, create a
vSwitch as prompted below the drop-down list.
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Duration |
The subscription duration of the host. You can select Auto-renewal. If your subscription is not renewed, this operation ensures that the system retains
your host resources and renews the host based on the specified subscription duration.
For example, if you specify a three-month subscription duration, the system renews
the host once every three months.
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