Title :
New Method of Areal Density Capability Determination for Digital Magnetic Recording System
Author :
Xinzhi Xing ; Guarisco, D. ; Guang Yang ; Zhihao Li ; Stoev, K. ; Liu, Frank
Author_Institution :
Western Digital Corp., San Jose, CA, USA
Abstract :
Areal density capability of a recording system is traditionally determined in two steps. Linear density is first determined by on-track error rate. Track density is then determined by off-track read capability (OTRC) at the linear density chosen in step one (IEEE Transactions on Magnetics, vol. MAG-26, no. 5, pp. 1689-1693, Sep. 1990). With advances in technologies and changes in drive requirements, this traditional method does not necessarily reflect the current requirements and limitations of high density recording. In this paper, a new method to experimentally determine areal density capability is proposed. The limiting factors and demands to recording components will also be discussed.
Keywords :
digital magnetic recording; areal density capability; digital magnetic recording; off-track read capability; on-track error rate; Error analysis; Magnetic heads; Parity check codes; Sensitivity; Signal to noise ratio; Solids; Linear density; adjacent track erasure; areal density; low-density parity-check (LDPC) channel; off-track capability; track density;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2011.2153835
