Learn about the limitations of Oracle Cloud Infrastructure (OCI) Block Volume service, including invalid actions like attaching volumes across availability domains.
Table of Contents
Question
Which is NOT a valid action within the Oracle Cloud Infrastructure (OCI) Block Volume service?
A. Cloning an existing volume to a new, larger volume.
B. Expanding an existing volume in place with offline resizing.
C. Restoring from a volume backup to a larger volume.
D. Attaching a block volume to an instance in a different availability domain.
Answer
D. Attaching a block volume to an instance in a different availability domain.
Explanation
In Oracle Cloud Infrastructure (OCI), a block volume cannot be attached to an instance in a different availability domain. Block volumes are only accessible within the same availability domain in which they are created.
When using the Block Volume service, you can:
- Clone an existing volume to a new, larger volume (Option A)
- Expand an existing volume in place with offline resizing (Option B)
- Restore from a volume backup to a larger volume (Option C)
However, attaching a block volume to an instance in a different availability domain (Option D) is not a valid action. This limitation ensures data locality and minimizes latency by keeping the block volume and the instance in the same availability domain.
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