Tiered disk systems （DS8700 and DS5020）， tape backup and Cisco director（s） utilizing VSANs have been proposed as a solution. The storage specialist is asked to explain the technical advantage of using Cisco directors and VSANs. Which of the following is the key point to stress to the customer（）
- Aa single director and VSANs provides redundant fabrics at reasonable cost
- Bprevent disk and tape traffic from sharing a host port
- Cease of implementation of Administrative Domains
- Dability to easily create a DS8700 LPAR to send data directly to tape