单选题A cluster administrator has been asked to install HACMP on two nodes with the following hardware： -two CPUs， - 1GB RAM， - one 1 36GB drive， -two 10/100/1000 Ethernet adapters， and -GB Fibre Channel adapters dual attached to SAN storage. In order to
题目
单选题
A cluster administrator has been asked to install HACMP on two nodes with the following hardware： -two CPUs， - 1GB RAM， - one 1 36GB drive， -two 10/100/1000 Ethernet adapters， and -GB Fibre Channel adapters dual attached to SAN storage. In order to eliminate single points of failure，the administrator should first add which of the following：（）
A
an additional 1GB RAM to each node.
B
Another bootable mirrored disk drive.
C
A 10/100/1000 GB Ethernet adapter to be attached to a redundant switch.
D
Nothing，because this is a viable cluster solution with no single points of failure.