Discovering iSER targets on your Linux® host by using iSNS

You can discover iSER target portals by using the internet storage name service (iSNS) method.

Before you begin

Before you use the iSNS discovery, you must do the following tasks:

Configure the system to use iSER. See Configuring the system for iSCSI or iSER hosts.
Configure the system to use your iSNS server. See Configuring the iSNS server address using the CLI.
Verify that the system nodes registered their target portals with the iSNS server. If the node iSER addresses are visible to the iSNS server, this registration occurs automatically.

To discover iSER targets by using iSNS, complete the following steps:

Modify the iSNS server settings in the /etc/iscsi/iscsid.conf file by entering the IP address and the port number that is used by your iSNS server:
```
isns.address = <iSNS server IP address>
isns.port = <iSNS server port>
```
Make the iSNS configuration changes effective by restarting the iSER initiator service.
Run the iSNS discovery command to generate a list of all iSER target portals that are registered with the iSNS server:
```
iscsiadm --mode discovery --type isns
```