Overview of ISCSI Technology
iSCSI (Net SCSI) is the quality protocol for encapsulating SCSI command into TCP/IP packets and enabling I/O block knowledge transport over IP networks. iSCSI can be used to create IP-primarily based Storage Space Networks (SANs). The easy, yet powerful technology will help provide a high-speed, low-price, long-distance storage resolution for Net sites, service providers, enterprises and different organizations.
The iSCSI target resides on a bunch where StarWind has been installed. StarWind may be a software iSCSI target answer, which supports numerous sorts of physical devices and virtualization.
The iSCSI client is named initiator. With an iSCSI initiator, it is potential to access completely different iSCSI target devices. There are a lot of iSCSI initiator implementations for different operation systems. The communication between an iSCSI target and an iSCSI initiator is completed over a TCP/IP-based network (a native network or the Net).
The use of the iSCSI protocol is a revolution in storage applications. With an iSCSI initiator a far off device seems as it absolutely was a local one - there is no difference for applications. The effect is to supply geographical independence to the person using the initiator. There are so much-reaching consequences of this: The employment of familiar network technology and management reduces coaching and staff prices, and will increase stability and reliability of an organization's infrastructure.
- iSCSI is scalable over long distance or in an exceedingly Local Area Network (LAN), enabling remote data replication and disaster recovery.
- A user can access the same desktop wherever in the globe they're -- the age of the thin client is here.
- Commonplace firewall and security measures will be used to guard an organization's data.
- There is no need to possess large trunks of dark fibre or different communications infrastructure deployed, with accompanying contract and SLA management.
- A company may place all of its disk space in purpose-built co-located premises, rather than in expensive office space.
- Centralized backup of all the storage within a corporation is currently a reality.
- A company's security would like not be compromised by the theft of a laptop, for instance, since no confidential data would like be stored on the thin client.
- Existing SAN installations can be incorporated in new iSCSI networks by utilizing gateway technology to bring iSCSI and Fibre Channel (FC) devices into the identical network.
- iSCSI greatly reduces the Total Value of Ownership (TCO) - existing networking and storage resources can be used.
- iSCSI storage needs will be outsourced to storage brokers, for such blessings as co-located storage for disaster recovery and storage on-demand provision.
- iSCSI latency relies on that of TCP/IP, so normal knowledge compression techniques and traffic-shaping techniques will optimize throughput.
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