Home » Oracle » 1z0-499 » Which three actions must you perform on share properties in order to move data using shadow migration?
Which three actions must you perform on share properties in order to move data using shadow migration?
A. Configure the source so that the ZFS Storage Appliance has root access to the share.
B. Use interposition; this requires a separate physical machine.
C. Create a share on the local file system with the shadow attribute set to ‘nfs://<host>/<path>’.
D. Configure the source to be read-only.
Correct Answer: ACD
Explanation/Reference:
A: Filesystem-wide state is stored in the .SUNWshadow directory at the root of the filesystem. Any modification to this content will have a similar affect.
C: When shares are created, they can optionally "shadow" an existing directory, either locally or over NFS.
D: In order to properly migrate data, the source filesystem or directory *must be read-only*.
Incorrect Answers:
B: Shadow migration uses interposition, but is integrated into the ZFSSA and doesn’t require a separate physical machine. References: Oracle ZFS Storage Appliance Administration Guide (June 2014), pages 391-392
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