Open HA Cluster Installation Guide

iSCSI Storage

iSCSI is a protocol that enables clients, called initiators, to send SCSI commands to SCSI storage devices, called targets, on remote servers. It is a Storage Area Network (SAN) protocol that enables the consolidation of storage into data-center storage arrays, while providing hosts with the illusion of locally attached disks. The use of iSCSI does not require special-purpose cabling. Instead, communication is run over long distances by using the existing network infrastructure.

Observe the following guidelines for configuring iSCSI storage in an Open HA Cluster configuration:

Figure 1–1 Cluster Topology Using Unshared COMSTAR Storage

The preceding context describes the graphic.