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Removable Right Disk - RRD
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The RRD stands for the abbreviation of the Removable Rigid Disk. This is also a type of data storage device that is used for the purpose of storing the data or the information. This is also a kind of the tape technology which is introduced by the Iomega.

The IOmega has a good profile in the manufacturing of the storage media devices. The IOmega manufactures a range of products in the data storage segment for the providing the services from the personal computer to even the high end large data base storage systems. The technology introduced by the Iomega aims to provide a competitive edge in the tape technology. The products based on this technology were in the market in the year of 2004.

The purpose of launching this technology is to provide backup in the storage devices of the tape industry. When the RRD was launched; it had the capacity of about 35 giga bytes of storage. The name that was given to the storage media that based on this technology was REV. The REV uses the connectivity through the fire wire. Presently the REV drives are available in plenty of available interfaces that are the SCSI, ATAPI, USB and the above mentioned Fire wire. The REV is still referred to as the RRD since it is based on that technology.

The REV specifications are explained in detail below: It is a small disk that is removable. It is based on the hard drive technology. It uses a head to read and write the data. The data is written to the spinning platters that are in a series. The head that is used to read or write the data is of ‘flying type’. It contains the spindle, motor and the platters. The REV drive comprises of the drive heads and the drive controller. The data transfer rate in the REV that is presently available is about 19 MB/s.

Mostly the REV drives are referred to as the RRD because of the fact that they are built on the technology of the RRD and also because the SCSI REV that are used in the system identifies them to the host operating system as the RRD. When the RRD technology was introduced by the Iomega the main reason was for two applications.

The first and the foremost application was that it was for the backup of the system instead of just the tape back up. And the other reason was that it was used for the storage of data that has to be frequently moved from one place to the other. The data transfer was of importance here. The 35 gigabytes is the uncompressed memory that is used in the RRD.

The important or a completely now feature of "Boot and Run," will be offered. This feature will allow the users to run the computer systems to be run with a temporary memory from the backup. This is done in the event if any of the hard disk drives of the computer system fails or there is a corruption by any virus attack. This means that the system can be booted and run even after the hard disk drive fails.

There are many advantages of the RRD devices over the regular Tape drives; an important one is to access the data in random rather than the sequential access as if in any tape drive. The main disadvantage regarding the tape drives was the sequential access which takes a lot of time.

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