INet Network Scanner 2.6.1
The installer has an option to add a device to the running scan to test for the ability to bind the particular interface to the network adapter. This option is rarely used, because it is unnecessary. If the operating system is not booted from the network, then the operating system cannot listen for connections on its network interfaces.
If you enable Redundant Interconnect Usage for your Oracle Solaris Cluster environment, you can remove one of the redundant interconnect cables from the iNet device and restart the iNet device using the GNS scan.
The GNS client then triggers the
packets. These packets contain the prefix of the GNS parent domain. If no deployment exists on the cluster host with iNet 1, or if the deployment is incorrect, Oracle Clusterware reports a failed network scan.
If the preferred host (host with iNet 1) fails, then GNS scans the cluster hosts with iNet 0. The host with iNet 0 is not the preferred host. GNS selects the host with the highest port number on the public Internet.
The Oracle iNet Router is installed in a dedicated database server. If the database server fails, the Oracle iNet Router continues to function. As a result, you can use the HAIP addresses as redundant router nodes. In other words, the HAIP addresses replace the physical routing hardware interfaces.
When you upgrade Oracle Grid Infrastructure software to Oracle Grid Infrastructure 11g release 2 (220.127.116.11) or later, you must manually install the Oracle iNet Router on each HAIP in your private network.
If you plan to set up a cluster with multiple Private IP Networks, then you must make sure that the private interconnect private subnet address ranges do not overlap. For example, if you plan to have three Master Private IP Networks for two nodes, then the private IP network ranges are 192.168.0.[0-255].[0-255].[0-255].[0-255].
For a two node cluster with one Private IP Network, you can still use GNS for load-balancing between interconnects. However, if you need to use multiple HAIP addresses, you must create more than one HAIP address from the same Private IP Network. For example, if you create an HAIP address from the Private IP Network of 192.168.0.10, then you can also assign to other interconnect interface a HAIP address in the range of 192.168.0.10-192.168.0.100.
After the scan completes, the results are displayed in a grid format. Each node is identified by the public network name, the IP address, and the operating system. When the scan is complete the following results are available for the client:
You can create a new HAIP, or restore one from an existing HAIP, by entering the new HAIP address and the private network interface name of the destination node in this dialog box. Additional information about HAIP addresses is presented below.
The A3-Ethernet field in this dialog box is read-only. It is used to create or restore a new HAIP address. It is the name of the third adapter interface required if you are using certified Network-attached Storage (NAS).