Veritas™ Appliance iSCSI Guide
- Overview
- Understanding the appliance configurations
- Understanding NetBackup for VMware
- Configuring iSCSI
- Configuring the appliance for iSCSI
- Setting the IQN for the initiator
- Viewing the interface properties
- Configuring the interface properties
- Removing and resetting the interface properties
- About CHAP authentication
- Discovering targets by using the portal address
- About iSNS
- Discovering targets by using iSNS
- Connecting to a target
- Disconnecting the sessions with a target
- Viewing the targets
- Troubleshooting iSCSI issues and some best practices
About iSNS
An iSNS server uses the Internet Storage Name Service protocol to maintain information about active iSCSI devices on the network. Include the IP addresses, iSCSI node names, and portal groups. The iSNS protocol enables automated discovery and management of iSCSI devices on an IP storage network. An iSCSI initiator like the NetBackup appliance can query the iSNS server to discover iSCSI target devices.
You can use an iSNS (Internet Storage Name Service) server to discover targets. Configuring the iSNS server eliminates the need for configuring every initiator for every target. When numerous hosts exist on a network, configuring an iSNS server saves time. An iSNS server provides a central management point for the group by dynamically maintaining up-to-date information about the iSCSI target names for group volumes.
If you have an iSNS server, there is no need to discover targets by using the specific target names in the command. The following diagram explains the interaction between the appliance and the iSNS server.
