Determining tape head condition
AssigneeHewlett-Packard Development Company, L.P.
InventorsBrian Brong, Mike Alan Holmberg, Steven L. Brittenham, Michael Anthony Ellis, Saiman Kusin, Geoff Spratt
Life of this patent
Estimating the term…
Abstract
Techniques to use a model associating condition of a tape head with tape head usage are described. The tape head is for use in a magnetic tape drive. In examples, a condition of the tape head is determined using a model. In examples, the model fits determined values of the condition parameter.
Claims20
A method for predicting condition of a tape head for use in a magnetic tape drive, the method comprising:
- determining a condition of the tape head using a model associating a condition parameter with tape head usage, the condition parameter being related to performance of the tape head, the model fitting pre-determined values of the condition parameter, and the model being a representation of the tape head that allows for determining tape head condition after a specific tape head usage without having to measure an actual value of the condition parameter.
An apparatus comprising:
- a magnetic tape drive including is tape head to access content of a storage tape;
- a processing circuit to determine whether an actual value of a condition parameter related to performance of the tape head is outside a range using a model associating tape head condition with tape head usage,
- wherein the model fits pre-determined values of the condition parameter, and wherein the model is a representation of the tape head that allows for determining tape head condition after a specific tape head usage without having to measure an actual value of the condition parameter.
A non-transitory tangible computer readable storage medium storing instructions that when executed by a computer cause the computer to implement a method to:
- determine a cumulative rate associated with a parameter of the tape head, the tape head being for use in a magnetic tape drive, the parameter being a tape head wear, a magnetic spacing, or an error rate;
- determine whether the cumulative rate is within a selected range using a model associating the tape head parameter with the parameter value, wherein the model fits pre-determined values of the condition parameter, and wherein the model is a representation of the tape head that allows for determining tape head condition after a specific tape head usage without haying to measure an actual value of the condition parameter;
- and
- signal an abnormal condition of the tape head upon determining that the cumulative rate is outside the selected range.
Dependencies are inferred from the claim text.