Targets Tab
The targets tab provides the list of individual targets available to the iSCSI initiator. In this case, three targets are available to the iSCSI initiator.
To gain access to the target, the initiator must “Log On” to the target. If there is only one path to the target, there is only one step needed for log on.
If there are multiple-paths to the target, then each path must be described to the iSCSI initiator. This is done by enabling multi-path and clicking on the “Advanced” tab. The Log on process must be repeated for each separate path.
The advanced tab provides a drop-down box for all the possible source (initiator) IP addresses and a separate drop-down box for all possible target portal addresses. Some target solutions provide one virtual IP address for multi-path operations. In these cases, the target solution manages the actual paths and IP addresses internally. Other target solutions expose each available IP address that can be used for multi-path operations.
The administrator must select each desired combination of source IP address and target IP address.
After the IP address or addresses have been selected, the initiator is connected to the target and the log on process is complete.
Path Load-balancing and fail-over are configured here. During the target logon process, multiple paths can be configured by selecting different combinations of source and target IP addresses. After all the paths have been selected, the desired load-balancing or fail-over behavior can be configured. This behavior must be assigned for the session and the individual targets.
In this example, three paths have been specified for this target as shown by selecting “Details” from the targets window. For even load-balancing, select “Round Robin” for the session connections load balance policy.
For the target multi-pathing configuration, select the “Devices” tab from the targets window, then select “Advanced” to get to the MPIO selection tab. Select the load balance policy for each device.
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