Agilent Technologies E5022A Operation Manual page 207

Hard disk read/write test system
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VEE Measurement Program Operation
Measurement
Radius
Skew
Erase Offset
Write Offset
Erase/Write Count
Band Erase Range
Band Erase Pitch
Figure 3-126
Parameter of Band Erase
3. When required by measurement applications, click on the [Erase], [Write],
[BandErase], [WriteAlways] and [Write Burst Pattern] buttons. When Write Always is
used, click on [Abort Write] button when the user wants to terminate writing.
4. Clicking on the [Comp Always] allows you to stay the head position at a required
position by using the track offset compensation function.
The recommended procedure is described below.
a. Setup a configuration of the function by clicking on the [Track Offset Comp.
206
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Config]. The menu under the [Track Offset Comp. Config] is the same as one in the
track profile measurement. See the "TAA Track Profile Menu - Track Offset
Compensation Setup" on page 103.
Specifies the current position of the head
radius. Click on the [Radius] button to set the
position. During head unloading the [****]
symbol will appear.
Specifies the current angular position of the
head skew. Click on the [Skew] button to set
the position. During head unloading the
[****] symbol will appear.
Specifies the erase track offset. Moves the
head from the center of the track to its
specified position. Inward direction is
positive.
Specifies the write track offset. Moves the
head from the center of the track to its
specified position. Inward direction is
positive.
Specifies the number of over-erase and
over-write. If this is set over 2, the data is
written or erased for revolutions specified by
this.
Specifies the erase range for band erase.
Specifies the erase pitch for band erase.
Chapter 3

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