| 发明名称 |
DYNAMICALLY CONTROLLING TAPE VELOCITY |
| 摘要 |
A maximum velocity is dynamically determined during a tape drive operation to obtain a statistical standard deviation of a position error signal (PES) that yields an amount of stopwrite (SW) operations that avoids backhitching. The tape velocity is adjusted to the maximum velocity. |
| 申请公布号 |
US2015243317(A1) |
申请公布日期 |
2015.08.27 |
| 申请号 |
US201414505706 |
申请日期 |
2014.10.03 |
| 申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BUI Nhan X.;JUDD Kevin B.;JUSTO Roger J.;NAKAYAMA Hirokazu;TAKETOMI Tomoko |
| 分类号 |
G11B15/52 |
主分类号 |
G11B15/52 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for controlling tape velocity using a processor device, the method comprising:
dynamically determining a maximum tape velocity during a tape drive operation to obtain a statistical standard deviation of a position error signal (PES) that yields an amount of stopwrite (SW) operations that avoids backhitching by calculating a linear relationship between the tape velocity and the statistical standard deviation; and adjusting the tape velocity by recursively lowering the tape velocity until the statistical standard deviation of the PES is calculated. |
| 地址 |
Armonk NY US |
