A Rundown On Tape Backup Types
Magnetic tape backup has been in use for several decades already. Commonly known for its uses in audio and video it is a reliable material that is cost effective in comparison to most backup types. There are tape backup types which are capable of storing large quantities of data for a low price and they last for many years. The tape with the highest current capacity on the market stores 800GB without compression.
Tape can come in more than one form, the main ones being a cartridge and cassette. The difference between these two is that a cartridge has one reel encased in plastic and is a more general term. The cassette tape is two reels within the plastic casing. This is the cassette tape that we all associate with audio formatting as well. Tapes being used as a backup method started with home computer users in need of information storage. Though there are a few different tape widths available, the most popular remains the half inch reel.
Recording methods vary among a few main types. The helical scan copies in a diagonal way instead of longitudinal. The linear method does this in a parallel setting on the tape in a single drive. It is the simplest way but the most ineffective overall. The linear format evolved over time into the linear serpentine method which involves more tracks than tape heads. Tracks are still written one at a time but with a reverse pass over of the tape as well.
The compression of data became a priority among data backup users for its efficiency in reducing the data size. Tape drive software now has algorithms embedded in the hardware of the tape drive. The result is a much higher throughput than would be possible with any regular software program. The disadvantage is that lower end products are not as effective with the algorithms as the higher end is. A software encryption program is recommended for increased productivity. A tape drive or a streamer is needed when using tape backup as your preferred method of information saving. Its sole purpose is to read the data stored on the tape or write that data. There is a disadvantage in that file seeking can take an excruciatingly long time when searching for a specific file or folder. The upside to this is that the streaming speed is very fast and can transfer data at 80MB per second which strikes a good comparison with hard disk drives. When the data transfer rate falls below the transfer speed of the tape drive this is called the shoe shining effect. If this happens, the data buffer empties and the tape drive stops to reverse and write once the buffer has re-filled. This can place unnecessary tension on the tape medium. Since the very first tape drive technology has advanced in leaps and bounds. 1951 introduced the very first tape drive which was produced by Remington Rand. IBM soon followed with their version of the tape drive and that led to a continuously growing market. Throughout the 80s the popularity of the tape backup method increased and was the most common data copying format used. Into the modern day tape backup accessories are upgraded and updated to accommodate its faithful users. There are many tape backup types on the market now for various storage needs. Tape is traditional and proven to work well. Despite the other options, tape is known for its reliability and affordability which makes it a sure bet for data storage.
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