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.
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