We present a statistical model that correlates the drive-level stiction behavior, which involves multiple head-disk interfaces, to its constituentsrsquo; component-level stiction behavior. The model takes into account all types of component-level stiction events, namely fly stiction as well as normal stiction. The important conclusions from this study are as follows, (i) Drives with a large number of head-disk interfaces are significantly more immune to stiction induced spin failure than one might perceive. (ii) The stiction per interface measured in a drive is always lower than the component-level stiction and decreases with increasing number of head-disk interfaces.
Issue Section:
Research Papers
1.
Angelo, J., 1997, private communications.
2.
Gui
J.
Marchon
B.
1995
, “A Stiction Model for a Head-Disk Interface of a Rigid Disk Drive
,” J. Appl. Phys.
, Vol. 78
, (6), pp. 4206
–4217
.3.
Gui
J.
Marchon
B.
1998
, “Fly/stiction: Mechanical Instability of a Head-Disk Interface
,” IEEE Transactions on Magnetics
, Vol. 34
, No. 4
, pp. 1804
–1806
.4.
Meyer
D.
Goglia
P.
Menon
A. K.
Li
Y.
1997
, “A Statistical Model for Interpreting Hard Disk Drive Stiction Measurements
,” ASME JOURNAL OF TRIBOLOGY
, Vol. 119
, pp. 43
–48
.
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