SANRAD V-Switch manual Discovering iSCSI Targets, ISCSI Discovery Session, Isns, Ip isns add

Discovering iSCSI Targets

iSCSI target discovery is performed across the IP-SAN by the iSCSI initiator located on the server. The V-Switch supports three methods for reporting iSCSI targets in the IP-SAN to iSCSI initiators:

iSCSI Discovery Session

SLP iSNS

iSCSI Discovery Session

The V-Switch supports iSCSI discovery sessions for reporting iSCSI targets to iSCSI initiators. A V-Switch network IP address must be configured on the iSCSI initiator for the initiator to connect to and discover the V-Switch’s attached iSCSI targets.

SLP

The V-Switch supports Service Location Protocol (SLP) by acting as an SLP Service Agent (SA). No configuration is necessary. An SLP SA services User Agents (UAs). UAs are iSCSI initiators that query a network for all attached iSCSI targets. The V-Switch supports the specific service service:iscsi:target.

iSNS

The V-Switch supports Internet Storage Name Service (iSNS) protocol for advertising its targets and portals on the iSNS server to enable iSCSI initiators in the IP-SAN to locate the V-Switch targets automatically. Use the CLI command ip isns add to add an iSCSI server to the V-Switch’s iSNS client. Targets defined by the V-Switch’s Access Control List (ACL) as having controlled access are accessible only to those servers defined as having access to the target. See “Volume Exposure & Security,” page 107.

ip isns add

You need to define one parameter to add an iSNS server address:

SWITCH	PARAMETER	DEFINITION	STATUS	EXAMPLE
-ip	IP ADDRESS	IP ADDRESS OF	MANDATORY	212.199.43.1
		ISNS SERVER

Use the CLI command ip isns show to view all added iSCSI server addresses.

Chapter 4: V-Switch Configuration 63