How does the VNX handle LUN ownership changes so that the access path to the LUN is
available to both SPs simultaneously?
A.
By the host software being aware of SP ownership
B.
By the SPs sharing ownership of the LUNs
C.
By using ALUA Failover Mode
D.
By the LUN being trespassed.
Explanation:
ALUA (Asymmetric Logical Unit Access) is a request forwarding implementation. In other
words, the LUN is still owned by a single SP however, if I/O is received by an SP that does
not own a LUN, that I/O is redirected to the owning SP. It ’s redirected using a
communication method to pass I/O to the other SP.
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