Information about Vxa
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VXA is a tape backup format originally created by Ecrix and now owned by TANDBERG DATA. After the merger between Ecrix and Exabyte, VXA was produced by Exabyte Corporation. On November 20, 2006, Exabyte was purchased by Tandberg Data.
Exabyte and Ecrix describe the data format as "packet" technology as opposed to "linear" technology. This is a variation on helical scan technology. Instead of writing data in continuous, predefined linear tracks, data is written in addressable packets along the tape. The claim is that this gives better reliability and error recovery as well as being able to adapt to different data rates.
The VXA format competes mainly against the DDS, SLR, AIT, & DLT-V formats.
Generations
Overview
| Generation | VXA-1 | VXA-2 | VXA-3 | VXA-4 | VXA-5 |
|---|---|---|---|---|---|
| Release Date | 1999 | 2002 | 2005 | TBA | TBA |
| Max Capacity (GB) | 33 | 80 | 160 | 320 | 640 |
| Max Speed (MB/s) | 3 | 6 | 12 |
VXA-3
Exabyte released two different product lines based on VXA-3 technology, VXA-320 in 2005 and VXA-172 in 2006. VXA-172 drives are limited to 86 GB per tape cartridge, but can be unlocked (for a fee) to remove the limit. They are otherwise the same.Notes
- Data Capacity figures above are for UNCOMPRESSED data. Exabyte assumes a 2x compression factor in their marketing material.
External links
- ECMA 316 Specification of VXA-1.
- ECMA 222 Specification of ALDC, the data compression standard for VXA-1.
- VXA Alliance
| Magnetic tape data storage formats | ||
|---|---|---|
| Linear | Helical-Scan | |
| Three Quarter Inch (~19 mm) |
LINCtape (1962) - DECtape (1963) |
Sony DIR (19xx) - Ampex DST (1992) |
| Half Inch (12.65 mm) |
UNISERVO (1951) - IBM 7 Track (1952) - 9 Track (1964) - IBM 3480 (1984) - DLT (1984) - IBM 3590 (1995) - T9840 (1998) - T9940 (2000) - LTO Ultrium (2000) - T10000 (2006) | Redwood SD-3 (1995) - DTF (19xx) - SAIT (2003) |
| Eight Millimeter (8 mm) |
Travan (1995) - IBM 3570 MP (1997) - ADR (1999) | Data8 (1987) - Mammoth (1994) - AIT (1996) - VXA (1999) |
| Quarter Inch (6.35 mm) |
QIC (1972) - SLR (1986) - Ditto (1992) | |
| Eighth Inch (3.81 mm) |
KC Standard, Compact Cassette (1975) - DC100 (1976) - Commodore Datassette (1977) - DECtapeII (1979) | DDS/DAT (1989) |
| Stringy (1.58 - 1.9 mm) |
Exatron Stringy floppy (1979) - ZX Microdrive (1983) - Rotronics Wafadrive (1984) | |
Ecrix was a magnetic tape data storage company founded in 1996 in Boulder, Colorado. The founders, Kelly Beavers and Juan Rodriguez, were two of the three founders of Exabyte. The research and development done by Ecrix focused on making a cheaper 8mm tape drive.
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Tandberg Data asa
Public (OSE: TAD )
Founded 1979
Headquarters Oslo, Norway
Key people CEO: Gudmundur Einarsson
Chairman: Terje Thon
Industry Data storage
Revenue USD 106 million (2004) [1]
Operating income NOK -3.
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Public (OSE: TAD )
Founded 1979
Headquarters Oslo, Norway
Key people CEO: Gudmundur Einarsson
Chairman: Terje Thon
Industry Data storage
Revenue USD 106 million (2004) [1]
Operating income NOK -3.
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Exabyte Corp. was a manufacturer of magnetic tape data storage products headquarted in Boulder, Colorado. Exabyte Corp. is now defunct, but company's technology is sold by TANDBERG DATA under both brand names.
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Helical scan or striping is a method of recording higher bandwidth signals onto magnetic tape than would otherwise be possible at the same tape speed with fixed heads.
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Digital Data Storage (DDS) is a format for storing and backing up computer data on magnetic tape that evolved from Digital Audio Tape (DAT) technology, which was originally created for CD-quality audio recording.
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Scalable Linear Recording is the name used by TANDBERG DATA for its line of QIC based tape drives.
The earliest SLR drive, the SLR1, has a capacity of 250 MB, while the latest drive, the SLR140, has a capacity of 70 GB.
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The earliest SLR drive, the SLR1, has a capacity of 250 MB, while the latest drive, the SLR140, has a capacity of 70 GB.
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Advanced Intelligent Tape (AIT) is a high-speed, high-capacity magnetic tape data storage format developed and controlled by Sony. It competes mainly against the DLT, LTO, DAT/DDS, and VXA formats. AIT uses a cassette similar to Video8.
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Digital Linear Tape (DLT) (previously called CompacTape) is a magnetic tape data storage technology developed by Digital Equipment Corporation from 1984 onwards.
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Magnetic tape has been used for data storage for over 50 years. In this time, many advances in tape formulation, packaging, and data density have been made. Modern magnetic tape is most commonly packaged in cartridges and cassettes.
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DECtape was a magnetic tape data storage medium used with many Digital Equipment Corporation computers, including the PDP-6, PDP-8, LINC-8, PDP-10, PDP-11, PDP-12, and the PDP-15. VAX/VMS support for it was implemented but did not become an official part of the product.
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Digital Instrumentation Recorder is a magnetic tape data storage format developed by Sony. It uses a 3/4" wide tape, in a cassette with two reels, which is written and read with a helical scan process.
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Data Storage Technology (DST) is a 19 mm (3/4") wide magnetic tape data storage format created by Ampex in 1992 and based on the D2 videotape cartridge format. It is relatively high capacity and high speed, especially compared to other tape technologies available in the
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The UNISERVO tape drive was the primary I/O device on the UNIVAC I computer. Its place in history is assured as it was the first tape drive for a commercially sold computer.
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7 track tape. The magnetic tape is 1/2" wide and there are 6 data tracks plus 1 parity track for a total of 7 parallel tracks that span the length of the tape. Data is stored as 6-bit characters, with each bit of the character and the additional the parity bit stored in a different
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9 track tape. The magnetic tape is 1/2 inch (12.65 mm) wide, with 8 data tracks and one parity track for a total of 9 parallel tracks. Data is stored as 8-bit characters, spanning the full width of the tape (including the parity bit).
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The 3480 tape format is a magnetic tape data storage format invented by IBM, and were available in tape head sizes of 18-track and 36-track. Its successor, the 3590, was known by the name Magstar, and it was available in 128, 256 and 384-track versions.
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Digital Linear Tape (DLT) (previously called CompacTape) is a magnetic tape data storage technology developed by Digital Equipment Corporation from 1984 onwards.
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The IBM 3590 family is a family of tape drives and corresponding magnetic tape data storage media formats developed by IBM. The first drive, having the IBM product number 3590, was introduced in 1995 under the nickname Magstar.
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Magnetic tape data storage formats
Linear Helical-Scan
Three Quarter Inch
(~19 mm) LINCtape (1962) - DECtape (1963) Sony DIR (19xx) -
Ampex DST (1992)
Half Inch
(12.
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Linear Helical-Scan
Three Quarter Inch
(~19 mm) LINCtape (1962) - DECtape (1963) Sony DIR (19xx) -
Ampex DST (1992)
Half Inch
(12.
..... Click the link for more information.
Magnetic tape data storage formats
Linear Helical-Scan
Three Quarter Inch
(~19 mm) LINCtape (1962) - DECtape (1963) Sony DIR (19xx) -
Ampex DST (1992)
Half Inch
(12.
..... Click the link for more information.
Linear Helical-Scan
Three Quarter Inch
(~19 mm) LINCtape (1962) - DECtape (1963) Sony DIR (19xx) -
Ampex DST (1992)
Half Inch
(12.
..... Click the link for more information.
Magnetic tape data storage formats
Linear Helical-Scan
Three Quarter Inch
(~19 mm) LINCtape (1962) - DECtape (1963) Sony DIR (19xx) -
Ampex DST (1992)
Half Inch
(12.
..... Click the link for more information.
Linear Helical-Scan
Three Quarter Inch
(~19 mm) LINCtape (1962) - DECtape (1963) Sony DIR (19xx) -
Ampex DST (1992)
Half Inch
(12.
..... Click the link for more information.
Digital Tape Format is a magnetic tape data storage format developed by Sony. It uses a 1/2" wide tape, in a cassette with two reels, which is written and read with a helical scan process.
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Advanced Intelligent Tape (AIT) is a high-speed, high-capacity magnetic tape data storage format developed and controlled by Sony. It competes mainly against the DLT, LTO, DAT/DDS, and VXA formats. AIT uses a cassette similar to Video8.
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Travan is a 8 mm magnetic tape cartridge design developed by the 3M company, used for the storage of data in computer backups and mass storage. Over time, subsequent versions of Travan cartridges and drives have been developed that provide greater data capacity, while retaining the
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Advanced Digital Recording (ADR) is a magnetic tape data storage format developed by OnStream from 1998 to 2003. Since the demise of OnStream, the format has been orphaned. ADR is an 8-track, linear tape format.
Generation ADR 30 ADR 50 ADR 2.60 ADR 2.
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Generations
Generation ADR 30 ADR 50 ADR 2.60 ADR 2.
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The 8 mm Backup Format is a magnetic tape data storage format used in computer systems, pioneered by Exabyte Corporation. It is also known as Data8. Such systems can backup up to 40 GB of data depending on configuration.
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The 8 mm Backup Format is a magnetic tape data storage format used in computer systems, pioneered by Exabyte Corporation. It is also known as Data8. Such systems can backup up to 40 GB of data depending on configuration.
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Advanced Intelligent Tape (AIT) is a high-speed, high-capacity magnetic tape data storage format developed and controlled by Sony. It competes mainly against the DLT, LTO, DAT/DDS, and VXA formats. AIT uses a cassette similar to Video8.
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Quarter inch cartridge tape (abbreviated QIC, commonly pronounced "quick") is a magnetic tape data storage format introduced by 3M in 1972, with derivatives still in use as of 2007.
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The Ditto Drive series was a proprietary magnetic tape data storage system released by Iomega during the 1990s. It was marketed as a backup device for personal computers. The drives and cartridges were a dark red color.
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