A production cluster is attached to redundant disk fabrics and a tape fabric. Each fabric is
contained within a single switch. Each cluster member has access to twelve (12) TB of RAID 5
production storage and twelve (12) TB of RAID 0 local replica accessed through eight (8) HBAs
single initiator zoned to sixteen (16) storage ports on one storage subsystem. The tape fabric
includes one (1) connection to each server and direct connections to ten (10) LTO II (35MB/s) tape
drives. The standby cluster member performs multi-threaded backups using the local replica. All
HBAs and ports are 2Gb/s. If the recovery time is equal to backup time, where is the bottleneck?

A.
tape HBA

B.
disk HBAs

C.
tape drives

D.
subsystem contention

Explanation: