Hitachi HDS728080PLAT20 Specifications - Page 164
Table 110: Sector Time Array Entry Linearly Interpolated
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The host should base its calculations on the larger of its Typical Host Interface Sector Time and the device reported Sector Time values, and on the sum of the device reported Access Time values and any additional latency that only the host is aware of (e.g. host command overhead, etc.). Table 109: Streaming Performance Parameters log Description Stream Perforamnce Parameters log version K, Number of Regions in Sector Time Array L, Number of Positions in Position Array M, Number of Position-differences in Access Time Array Sector Time Array Position Array Access Time Array Reserved Bytes 2 2 2 2 K*8 L*8 M*4 Table 110: Sector Time Array Entry (Linearly Interpolated) Description LBA of reference location (LBA(7:0)...LBA(47:40)) (Identify Device words (99:98))/65536 time units per sector at the reference location Bytes n-(n+5) (n+6)-(n+7) Table 111: Access Time Array Entry (Linearly Interpolated) Description Difference in position from last stream access to new stream access Time that may be required to begin access at new stream access position, in (Identify Device wirds (89:88))/256 time units Bytes n-(n+1) (n+2)-(n+3) Deskstar 7K80 Hard Disk Drive Specification 160