Effect of environment on drop-outs in rotary head—tape drives

Anderson, Reid M.; Bhushan, Bharat

doi:10.1243/1350650971542543

Cited by 5 publications

(4 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous testing has shown that for some tapes, high humidity is a desired condition in which the moisture acts as a lubricant to improve wear characteristics (Anderson and Bhushan 1997), while other tests have shown that the best interface performance occurs at low relative humidity (Goldade and Bhushan 2002;Ambekar and Bhushan 2003a). As it can be seen based on the data presented in this study as well as published literature, the effects of environment are dependent upon tape properties and interface characteristics.…”

Section: Effect Of Humidity In Full-length Pass Testsupporting

confidence: 54%

“…Previous studies have shown that environment [temperature and relative humidity (RH)] has a remarkable effect on tribological and magnetic performance of the tape-drive interface as well as the durability of MP tape (Anderson and Bhushan 1997;Hempstock et al 2000;Goldade and Bhushan 2002;Ambekar and Bhushan 2003a) and ME tape (Patton andBhushan 1996, 1997;Luk and Bhushan 2001).…”

Section: Effect Of Humidity In Full-length Pass Testmentioning

confidence: 99%

“…Tapes D and E appear to have steady error rates with high spikes occurring throughout each test. These spikes may represent dropouts, as errors can be caused by dropouts (Anderson and Bhushan 1997;Bhushan 2000). Dropouts occur when the signal strength falls below a threshold, which may be due to tape demagnetization and head-tape separation caused by debris.…”

Section: Error Datamentioning

confidence: 99%

See 2 more Smart Citations

Comparative analysis and associated failure mechanisms of magnetic media in advanced linear tape drives

McDonough

Bhushan

2006

Microsyst Technol

View full text Add to dashboard Cite

Flexible magnetic tape is widely used for data storage and archival, as future generation of tapes and drives will continue to increase overall storage capacities and data transfer rates. Tape portability, robust drive operation, longevity of magnetic media, and improved performance of head-tape interface under long-term use are required for magnetic tape to maintain a stronghold in the field of storage devices. Comparative studies were performed to investigate differences in performance of various cartridges in impact, tapes under long-term durability, and contamination of head-tape interface in advanced linear tape drives. A drop test was performed in which various cartridges were dropped from varying heights. Cartridge damage was recorded and indexed. Reinforced cartridge casing promotes good stability at low height impact, while casing significant plastic deformation in increased-height drops. Contamination and durability studies were performed in which debris generation, tape edge damage, tape cupping profiles, and error data was collected and analyzed for studies of head-tape interface. Most significant loose debris generation occurs as a result of wear at the tape edges, while adherent debris is related to tape binder system, and causes increases in drive error rate. Cleaning brushes have been incorporated into the design of drives to reduce the accumulation of all types of debris. A study was performed to determine the effectiveness of brushes on head surface cleaning. The use of brushes in drives was shown to be helpful in removal of both loose and adherent debris types. The effect of relative humidity at the interface was examined, and it was found that high relative humidity acts as a lubricant at the head-tape interface, helping to reduce tape wear. Low relative humidity can have differing effects on the interface performance, as it has shown to either increase or decrease debris accumulation, depending upon tape characteristics.

show abstract

Section: Effect Of Humidity In Full-length Pass Testsupporting

confidence: 54%

Section: Effect Of Humidity In Full-length Pass Testmentioning

confidence: 99%

Section: Error Datamentioning

confidence: 99%

See 1 more Smart Citation

Comparative analysis and associated failure mechanisms of magnetic media in advanced linear tape drives

McDonough

Bhushan

2006

Microsyst Technol

View full text Add to dashboard Cite

show abstract

“…Fig 13. Head output and number of dropouts per minute (6± 9 dB and 3±6 ms) as functions of the number of cycles for the test performed at 30 8C and 80 per cent RH…”

mentioning

confidence: 99%

Effect of operating environment on failure mechanism of a head-tape interface in a linear tape drive with a belt-driven cartridge

Goldade

Bhushan

2002

Proceedings of the Institution of Mechanical Engineers, Part J:

Self Cite

View full text Add to dashboard Cite

The effect of the operating environment on the failure mechanism of a head±tape interface in a linear tape drive with a belt-driven cartridge was studied. A modi®ed commercial drive with magnetoresistive head and metal particle tape were used. D urability tests for the full tape length were performed at ambient and extreme environmental conditions. H ead output, coef®cient of frictio n and number of dropouts per minute were measured during the test. Optical and atomic force microscopy and Auger electron spectroscopy were used to evaluate changes at the head±tape interface at the end of the tests. M agnetic and tribological performance of head±tape interface is the best at low temperatures and low relative humidities. Increases in both temperature and relative humidity result in performance degradation, with the worst performance at the highest temperature. At ambient conditions, sporadic variations in the coef®cient of friction and the number of dropouts per minute are observed, associated with a cycle of stain formation and removal. Possible mechanisms responsible for the observed tribological behaviour of the interface at various environmental conditions are discussed.Keywords: linear tape drive, metal particle tape, magnetoresistive head, frictio n, wear, effects of temperature and relative humidity

show abstract

Effect of operating environment on head–tape interface in a linear tape drive

Ambekar

Bhushan

2003

Journal of Magnetism and Magnetic Materials

View full text Add to dashboard Cite

Effect of environment on drop-outs in rotary head—tape drives

Cited by 5 publications

References 27 publications

Comparative analysis and associated failure mechanisms of magnetic media in advanced linear tape drives

Comparative analysis and associated failure mechanisms of magnetic media in advanced linear tape drives

Effect of operating environment on failure mechanism of a head-tape interface in a linear tape drive with a belt-driven cartridge

Effect of operating environment on head–tape interface in a linear tape drive

Contact Info

Product

Resources

About