OpenSolaris iSCSI boot allows you to initialize an operating system over the network from a remote location, such as a storage disk array. iSCSI boot is typically loaded onto an initiator, or diskless client, while the hard disk resides on a SCSI target attached to the network. Because iSCSI boot uses standard Ethernet-based infrastructure, data, storage, and networking traffic can be consolidated on a standard network.
iSCSI Boot for x86 Systems
Remote booting over a storage area network provides the following advantages:
- Server consolidation and virtualization reduces equipment costs. For example, diskless servers that can boot from an OS image over the network are important for rack-mounted servers, or blade servers in high-density clusters.
- Simplified and centralized management reduces management costs. For example, provisioning new servers and managing and maintaining existing servers is simplified when installations, upgrades, and fixes are performed from a central location.
- Diversified data center locations reduces the risk of data loss in the case of a disaster. For example, you can strategically separate mirrored databases, because iSCSI boot utilizes a standard Ethernet-based infrastructure. This provides protection from regional disasters, such as earthquakes, hurricanes, and tornados.
- Improved availability. For example, recovery from a server failure is simplified when the spare server is booted and provisioned over the network.
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