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Chapter 4: V-Switch Configuration 63
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
ISNS SERVER
MANDATORY
212.199.43.1
Use the CLI command ip isns show to view all added iSCSI server
addresses.