Oracle Database Cloud: Cloning using Snapshot

Instance snapshots provide an easy way to create a customized machine image using an existing instance as a template. You can then use this customized machine image to create multiple instances with identical configurations.

Overview  of  Cloning Oracle cloud database using Snapshot

• On database deployments hosting a single-instance database, Oracle Database Cloud Service supports the creation of storage snapshots, which you can then use to create new database deployments called linked clones.
• When you create a storage snapshot, the database deployment is went into maintenance status and a snapshot of all the storage volumes for the deployment is taken.
• Then, when you create a linked clone deployment, Database Cloud Service creates a new database deployment whose storage volumes are from the snapshot.
• Using the “copy on write” technology that Oracle Compute Cloud Service supports for storage volume snapshots, the file data on the linked clone deployment can change without changing the snapshot itself.
• Thus, you can create several linked clones from the same snapshot to use for application testing or branched application development work.

Steps for Cloning Oracle cloud database using Snapshot

1. First, create storage snapshot for the instance you want to clone and provide a name as per your requirement, Click on Create

2. You can  see  that Snapshot is created with the name K21Snap is created now

3.  Now we  can create a database clone using with this snapshot

4. Now you can create an instance with this snapshot

5. Please review all details before creating

In this way, you can create multiple clones using snapshot.

Note: Make sure  the database instance from which you will clone will be a standalone database, as Currently, DbaaS doesn’t support cloning of RAC

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Related/Further Reading

If you are just starting out in Cloud then I highly recommend you to go through these posts first

• Cloud for Beginners (Facebook Live): SaaS | PaaS | IaaS and which one is right for DBAs.
• 12 Point Checklist for DBA for Beginner to Expert Cloud DBA (Facebook Live)
• If you are confused to pick between Amazon AWS or Oracle Cloud then check this
• Check tasks performed by Oracle DBAs in Cloud here

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