The customer has two HP 3PAR StoreServ 7000 Storage systems split between two data centers.
Used capacity of each storage system is 10 TB of data. The replication between data centers is
performed via Ethernet/IP, and the replication technology used will be asynchronous. The
maximum RPO is 30 minutes, and the daily change rate of the customer data is a maximum of
0.5%, which is created evenly throughout the day.
What is the required minimum bandwidth between the data centers for replication?
A.
40 Mb half-duplex
B.
20 Mb full-duplex
C.
5 Mb half-duplex
D.
10 Mb full-duplex
Explanation:
10TB * 0.5% / (3600 * 24 / 0.5) = 0.303 MB/s = 3 Mbps per datacenter (full duplex!!!).