| 1: | Is multipathing more of a connecting (network) technology or a storing (SCSI) technology? |
| A1: | Answer: Storing |
| 2: | What is the minimum number of HBAs needed for multipathing? |
| A2: | Answer: One if the HBAhas more than one port |
| 3: | How many LUs can a single LUN be associated with? |
| A3: | Answer: One |
| 4: | What is the difference between a WWNN and a WWPN? |
| A4: | Answer: WWNN represents the system or subsystem, and WWPN represents the port name. |
| 5: | What three pieces of information define a path? |
| A5: | Answer: Initiator, WWPN+LUN, and LU |
| 6: | True or false: Multipathing always uses active/passive configurations with static load balancing. |
| A6: | Answer: False. Active/active configurations are also used, along with dynamic load balancing. |
| 7: | How long are typical timeout values for failing over? |
| A7: | Answer: 30 seconds to several minutes |
| 8: | Describe the difference between mirroring, multipathing, and SAN routing. |
| A8: | Answer: Mirroring creates redundant data, multipathing provides multiple initiator-to-LU paths to access it, and network routing determines where transmission frames are forwarded in a SAN. |
| 9: | What identifies the LU uniquely? |
| A9: | Answer: A serial number or UUID |