Magnetic evaluation of advanced metal-evaporated tape in an advanced linear tape drive

Alfano, Anthony D.; Bhushan, Bharat

doi:10.1016/j.jmmm.2006.04.032

Cited by 5 publications

(6 citation statements)

References 18 publications

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“…The AME type A tapes had the largest mean LTM across the entire region, while the AME type B PC tape had the smallest mean LTM. These trends reflect findings that were done in the past using similar tape samples (Alfano and Bhushan 2007;Wright and Bhushan 2006), and are on the same order of magnitude as measurements taken on other types of tape (Boyle and Bhushan 2005; Hansen and Bhushan 2005;Taylor and Talke 2005;Wang and Talke 2005). The overall values of the LTM for these tapes are somewhat higher than those measured in other situations due to the fact that the tape is in an unsupported position in this case.…”

Section: Resultssupporting

confidence: 86%

“…The same general trends in the distribution can be seen for all five tapes. The center histograms show the lowest Alfano and Bhushan (2007) b Wright and Bhushan (2006) Fig. 10 Comparison of LTM averages across the entire unsupported region for the five types of tape tested proportion of samples occurring at zero displacement, and the highest proportion of samples occurring at larger displacements.…”

Section: Resultsmentioning

confidence: 99%

“…The technique does not suffer from many of the shortcomings that the servo-track monitoring techniques do, such as the need for a pre-written reference track or errors caused by head-tape spacing changes. However, the Fotonic edge probe is unable to differentiate between changes caused by tape motion (LTM) and changes caused by tape edge roughness (Goldale and Bhushan 2004;Alfano and Bhushan 2007). All tape edges exhibit some degree of roughness as a result of the tape slitting process.…”

Section: Comparison Of Ltm Measurement Techniquesmentioning

confidence: 99%

“…Tests were conducted on a Segway Systems/Mountain Engineering multi-terabyte tape storage (MTS) linear tape transport (Goldale and Bhushan 2003;Alfano and Bhushan 2007). The transport was equipped with porous air bearings.…”

Section: Tape Transport and Tape Samplesmentioning

confidence: 99%

“…Five different tape samples were used for testing, including magnetic particulate (MP) tape, Thin MP tape, and three types of advanced metal evaporated (AME) tape. Figure 7 shows generalized cross sections of the different types of tape (Wright and Bhushan 2006;Alfano and Bhushan 2007). The MP tape used was a commercially available 12.7 mm wide Ultrium sample with an overall thickness of 8.9 lm.…”

Section: Tape Transport and Tape Samplesmentioning

confidence: 99%

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Study of magnitude and component frequency variation of lateral tape motion across an unsupported tape region

Petrek

Bhushan

2007

Microsyst Technol

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Magnetic data tape is one of the most costeffective means of large scale information storage, and has the capacity to remain so in the future. Many challenges must be met in order to improve the storage density of magnetic tape systems and keep up with customer demands. One of these challenges is to minimize the relative motion between the read/write elements in the tape drive and the data tracks on the tape, also known as lateral tape motion (LTM). Modern closed-loop servo-based track following techniques are able to compensate for a large portion of the LTM events experienced, but care must still be taken in design of both the tape drive and tape media in order to minimize the negative effects of LTM. This paper details a study in which a new delay-integration method is applied to LTM measurement. The advantages and disadvantages of the method are discussed, and a comparison is made with previous LTM measurement methods. The delay-integration method is then applied to measure the change in LTM amplitude along an unsupported region of tape for several different tape samples. As many tape systems place the read/write head in the center of an unguided region, information about the behavior of tape in this situation could be used to minimize LTM, allowing for smaller data tracks and increased storage density.

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