Application restrictions of OceanStor 9000 InfoEqualizer

Application restrictions of OceanStor 9000 InfoEqualizer are as follows:
- The DNS resolution service of OceanStor 9000 only responds to domain name resolution requests in OceanStor 9000. This service never responds to external domain name resolution requests.
- A subnet can be divided into multiple zones, whereas a zone can belong to only one subnet.
- A zone can contain multiple nodes, whereas a node can belong to only one zone.
- A node can be added to only one subnet, that is, one node can only be accessed by clients on one subnet.
- The DNS service IP addresses of subnets cannot be the same as the InfoEqualizer DSN IP address.
- Each subnet must belong to different network segments.
- A zone must contain at least two nodes for node failover.

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