Networked storage is an external file server that can be easily managed by the user. With a NAS, you can easily provide any amount of storage capacity for a PC network. A major advantage is that the stored data can be read and processed with any computer in the network. Access from mobile devices such as tablets or smartphones is also possible.
In addition to the transfer speed of the hard disk, the data transfer speed of the network is also decisive. At present, SSD storage media are still very expensive, systems with SATA technology are offered much cheaper.
In a "reduntant array of independent disks" several hard disks are connected to each other. The data can be stored securely and without loss. Depending on the specific requirements in the respective network, different options can be selected. For all RAID systems, the storage capacities of the individual hard disks should be as large as possible.
Defective hard disks should be replaced as soon as possible. In this way, users contribute significantly to the security of the stored data. RAID systems do not replace backups! Data of great importance should always be stored at least twice. If the RAID system is infected by a virus or if errors occur in the program, important data can be lost.
SCSI describes standardized interfaces and protocols that enable data transmission between the individual devices in the network. SCSI stands for "small computer system interface".
The "serial attached SCSI" (short: SAS) is a serial interface in the computer with a transfer rate of 3, 6 or 9 Gbit/s. The serial attached SCSI is a serial interface in the computer with a transfer rate of 3, 6 or 9 Gbit/s. The serial attached SCSI is a serial interface in the computer with a transfer rate of 3, 6 or 9 Gbit/s. Communication between the individual devices is made possible by the following protocols:
Half or full duplex connections are possible, depending on the type chosen by the user. Line bundling is not possible with SATA, SAS also offers the option of using Dual Channel when SSD hard disks are connected in the network. While SAS can be connected as a multi-initiator, SATA is only available as a single host or for a multi-lane connection.
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