A customer wants to implement asynchronous replicaton to a third site tha is 450 miles (725
kilometers) from the company’s main site. Which method should be used to size transfer rates and
times for Remote Copy in this HPE StoreVirtual environment?
A.
Set up an analyzer at both sites to monitor for 24 hours
B.
Collect performance data at both sites for 24 hours
C.
perform multiple remote copy snaps to get an average size and rate
D.
Set up local snapshots to identify the change rate
B.
Collect performance data at both sites for 24 hours
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D. when you know the local change rate, you can estimated, how much Data is transfered.
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D. is correct
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D. – Testing the copy time
One way to check the time required to copy a snapshot is to run a test of the actual process. To
test this process, take two remote snapshots of the primary volume. Because the first remote snapshot
copies the entire volume, it takes longer to copy. The second remote snapshot copies only changes
made to the volume since the first remote snapshot was taken. You create the second remote
snapshot after the time interval you intend to schedule. Because of that, the copy time for the second
remote snapshot is more representative of the actual time required for copying subsequent remote
snapshots.
To test the copy time:
1. Create a remote snapshot of the primary volume.
2. Wait for the copy to finish.
3. Create another remote snapshot of the primary volume.
4. Track the time required to complete the second remote snapshot.
NOTE: This is the minimum amount of time that you should allow between scheduled copies – HP StoreVirtual Storage Remote Copy User Guide
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Take this: The correct Answer is C.
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