iSCSI (Internet Small Computer System Interface) is a protocol that uses underlying TCP/IP protocol for transmission of data. Unlike FC (Fiber Channel) which requires dedicated hardware like HBAs (Host Bus Adapters), fiber optics, etc., iSCSI uses existing network devices (routers, switches, firewalls) making it very cost effective storage solution. In iSCSI, data is transferred in block by block in raw form between the host and SAN. This makes operating systems to think as if the disk is locall...
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How to create and use the iSCSI target service on a QNAP Turbo NAS
How to create and use the iSCSI target service on a QNAP Turbo NAS
"A quick, efficient and cheap method of implementing network storage solutions"
Contents
Create an iSCSI target volume
Connect to iSCSI targets using Microsoft iSCSI initiator on Windows
Connecting to iSCSI targets using globalSAN iSCSI initiator on Mac OS
Connect to iSCSI targets using Open-iSCSI Initiator on Ubuntu Linux
What is iSCSI and its benefits?
iSCSI (Internet Small Computer System Interface) is ...
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FQDN Definition
FQDN Definition
Stands for "Fully Qualified Domain Name." An FQDN is a domain name that includes a hostname. For example, the URL "www.techterms.com" is an FQDN since it contains a hostname ("www") and a domain ("techterms.com"). The domain name "techterms.com" is not fully qualified because it does not include a hostname.
An FQDN can be broken down into three parts:
Hostname: mail, ftp, store, support, etc.
Domain: apple, microsoft, ibm, facebook, etc.
Top level domain (TLD):...
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Ethernet Definition
Ethernet is a widely used technology for local area networks (LANs) that enables devices to communicate over a network using a protocol that defines how data packets are formatted and transmitted. Developed in the 1970s by Xerox Corporation, Ethernet has become the standard for wired networking due to its efficiency, scalability, and ease of implementation.
Key Features of Ethernet
Protocol:
Ethernet is based on a set of standards defined by the IEEE 802.3 family. It outlines the phys...
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Fibre Channel Definition
Fibre Channel Definition
Fibre Channel is a technology for transmitting data between computer devices at data rates of up to 4 Gbps (and 10 Gbps in the near future). Fibre Channel is especially suited for connecting computer servers to shared storage devices and for interconnecting storage controllers and drives. Since Fibre Channel is three times as fast, it has begun to replace the Small Computer System Interface (SCSI) as the transmission interface between servers and clustered storage d...
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FCoE (Fibre Channel over Ethernet)
FCoE (Fibre Channel over Ethernet)
FCoE (Fibre Channel over Ethernet) is a storage protocol that enable Fibre Channel communications to run directly over Ethernet. FCoE makes it possible to move Fibre Channel traffic across existing high-speed Ethernet infrastructure and converges storage and IP protocols onto a single cable transport and interface.
The goal of FCoE is to consolidate input/output (I/O) and reduce switch complexity as well as to cut back on cable and interface card counts...
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virtual storage area network (VSAN)
A virtual storage area network (VSAN) is a logical partition in a storage area network (SAN). VSANs allow traffic to be isolated within specific portions of a storage area network.
The use of multiple VSANs can make a system easier to configure and scale out. Subscribers can be added or relocated without the need for changing the physical layout. If a problem occurs in one VSAN, that problem can be handled with a minimum of disruption to the rest of the network. Because the independence of VS...
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Storage Area Network (SAN)
Storage Area Network (SAN)
A storage-area network (SAN) is a dedicated high-speed network (or subnetwork) that interconnects and presents shared pools of storage devices to multiple servers.
A SAN moves storage resources off the common user network and reorganizes them into an independent, high-performance network. This allows each server to access shared storage as if it were a drive directly attached to the server. When a host wants to access a storage device on the SAN, it sends out a...
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What is an enterprise WAN?
What is an enterprise WAN?
What is an enterprise WAN?
An enterprise WAN is a corporate network that connects geographically dispersed users areas that could be anywhere in the world. As is the case with most WANs, an enterprise WAN (wide area network) links LANs in multiple locations. The enterprise in question often owns and manages the networking equipment within the LANs. However, the LANs are generally connected by a service provider. An enterprise WAN often also has additional remote ...
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Frame Relay Definition
Frame Relay Definition
Frame relay is a packet-switching telecommunication service designed for cost-efficient data transmission for intermittent traffic between local area networks (LANs) and between endpoints in wide area networks (WANs). The service, once widely available and implemented, is in the process of being discontinued by major Internet service providers. Sprint ended its frame relay service in 2007, while Verizon said it plans to phase out the service in 2015. AT&T stopped offe...
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