The demonstration of ISCSI Persistent Port during an HPE 3PAR StoreServ proof of concept fails. What
is a possible cause of the failure?A. The connected switch gets a loss_sync of HPE 3PAR StoreServ port and disconnects the port
immediately
B.
The connected switch does not accept an unsolicited ARP and does not update the IP address
mappings
C.
Zoning is not implemented correctly and the host could not connect to the partner port
D.
Port persistence is not configured correctly so the partner port could not be activated in a timely
manner
D. Port persistence is not configured correctly so the partner port could not be activated in a timely manner
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wrote a
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B. is correct
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B. 4AA4-4545ENW page 7
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A.
B. is incorrect becasue the IP mappings do get updated. Page 7 says this – It’s a little different with iSCSI since iSCSI does not use WWNs. In an iSCSI configuration, the “Native” and “Guest” port WWNs do not move; the IP address configured on the Native port moves from the Native port to the Guest port, and an unsolicited ARP is transmitted to notify the network for the change in the IP to MAC address mapping (see figure 5).
I believe the answer is A. “With Persistent Ports, during a firmware upgrade, a node failure, if a node fails, or in the case of FC loses connectivity to a fabric due to a “loss_sync”, the “Native” identity of a port on one node in a node pair becomes the “Guest” identity on the corresponding port on that node’s partner in response to a failure or CLI command. See figure 6 for an example of Persistent Ports failover as the result of a node failure.” Page 8
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B – Correct.
It’s a little different with iSCSI since iSCSI does not use WWNs. In an iSCSI configuration, the “Native” and “Guest” port WWNs do not move; the IP
address configured on the Native port moves from the Native port to the Guest port, and an unsolicited ARP is transmitted to notify the network
for the change in the IP to MAC address mapping (see figure 5).
If the switch does not allow unsolicited ARP, the ISCSI configuration can’t continue.
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