Fujitsu MBB2073RC User Manual download pdf (Page 36)

Data Format

Head

Track skew

Head ske

Leading logical

sector in head p+1

Head

Figure 3.5 Track skew/head skew

The number of physical sectors (track skew factor and head skew factor) corresponding to the skew

time varies depending on the logical data block length because the track skew and the head skew are

managed for individual sectors. The HDD automatically determine appropriate values for the track

skew factor and the head skew factor according to the specified logical data block length.

3.1.4 Sector format

Each sector on the track consists of an ID field, a data field, and a gap field which separates them.

Figure 3.6 gives sector format examples.

SCT

PAD

SM1

PLO

SyncG1

SCT

DATA1

SM2 BCRCDATA2 ECC

SCT

PAD

SM1

PLO

Sync

SCT

DATA1

SM2 DATA3

PAD

SM1

PLO

SyncG1

DATA1 SM2 DATA4

Servo

BCRC ECC

Figure 3.6 Sector format

32 C141-E257

1 ... 35 36 37 ... 98

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Fujitsu MBB2073RC User Manual Page 36