By NIIT NIIT, Rajiv Shankar Arunkundram, Pooja Sachdev, Karapagam P, NIIT, Karapagam P.
Distinctive variation utilizing garage region Networks opens with an outline of the necessity for facts garage in an company setting, the different sorts of information garage units, and latest info garage options. The authors construct on that starting place with an exploration of the evolution of SAN, many of the networking versions and data-centric functions, a bankruptcy devoted to fiber channel, and functional options for centralized, heterogeneous, and high-speed facts garage demanding situations. the second one part delves into more effective functions of the SAN: designing, imposing, dealing with, and troubleshooting a SAN. It presents suggestions for substitute SAN proprietors, evaluating SAN schemes for aggressive items. The final bankruptcy explores how SAN matches into the present internet situation, and VI structure as a brand new process of cluster communications.
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Additional resources for Special Edition Using Storage Area Networks
7. The server is directly attached to the storage device by using a SCSI bus. In the case of multiple storage devices, a linked SCSI bus connects the devices to the SCSI adapter. All the devices connected to a single SCSI adapter must be of the same kind. A single SCSI adapter would be sufficient to attach multiple hard disks. However, if you want to connect a hard disk and a tape drive, you need at least two SCSI adapters. 7. The RS/6000 processor is connected to storage devices by means of a SCSI bus, loop, and hub.
Thinnets are used in Ethernet networks. Backbone networks usually employ thicknets. The distance to which the signal can travel varies proportionately with the thickness of the cables. The main feature of coaxial cables is that they are highly resistant to attenuation and interference. The shield used in the coaxial cable helps to protect the signal from interferences and this makes the cable resistant to attenuation. Coaxial cables are safe and well protected from attenuation. The protection from attenuation makes the coaxial cable the cheapest and the preferred cable for long-distance communications.
RAID 10 is a combination of both RAID 0 and RAID 1. The data is first striped across drives and then mirrored. This level provides high performances for both read and write operations. However, the drawback with this level is that the cost is also high. 18. RAID 10 uses mirroring as well as striping to ensure security of data. RAID 10 does not follow the technique of parity generation. The fault tolerance of RAID 10 is the same as that of RAID 1. The RAID 10 implementation requires a minimum of four drives.