A customer plans to create two regional offices that are between 800 and 2,000 km away from their main data center. Each regional office will have a data center that will serve four to six branch offices between 30 and 50 km away.
At the close of business each evening the customer will shut down the application and transmit changes to each regional office. The amount of new information sent from the head office each night will vary from 0.5 and 1.5 GB. Later each night, an application at the regional offices will read the data from the head office and generate approximately 50 MB of new rate information appropriate for its branch offices.
What is the most costeffective EMC solution?
A.
1. Configure CLARiiON arrays in each office.
2. Use MirrorView/A and T3 networks for all data transfers.
B.
1. Configure Symmetrix arrays in the head office and CLARiiONs in the regional offices.
2. Use OC3 networks to transmit the same master copy of data from the head office to the regional offices using Open Replicator.
3. At the regional offices, create a snap of the data received and transmit the changes to the branch offices using SAN Copy.
C.
1. Configure Symmetrix arrays at all the main data centers and CLARiiONs at the regional and branch offices.
2. Use OC3 network links between the main data centers.
3. Use DS3 between the regional and branch offices.
4. Use SRDF/DM for data transfer in each case.
D.
1. Configure Symmetrix arrays at the head office and regional offices.
2. Configure CLARiiONs at the branch offices.
3. Use SRDF/DM and T1 network links between the head office and regional offices.
4. Use Open Replicator incremental offline push to distribute rate information to the branch offices using T1 network links.