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5.2 Log Parameters
• Count Basis
0h : Undefined
1h : Per command, optional
2h : Per failed reconnect, optional
3h : Per unit of time, optional
4h-7h : Reserved
The drive does not support this field. Zero is always reported.
• Data Underrun
Count of data underruns which occur during write operation when a buffer
empty condition prevents continued transfer of data to the media from the
buffer.
The drive does not support this field due to a hardware limitation. Zero is
always reported.
• Data Overrun
Count of data overruns which occur during read operation when a buffer full
condition prevents continued transfer of data from the media to the buffer.
The drive does not support this field due to a hardware limitation. Zero is
always reported.
5.2.3 Write Error Count Page (X'02')
Table 5.24 Write error count page (X'02')
Bit
Byte
7 6 5 4 3 2 1 0
0 0 0 0 0 0 0 1 0
1 X'00' (Reserved)
2 Page Length (MSB)
3 Page Length (LSB)
All of the following parameters have this header.
Page Length will be defined based on the value of Parameter Pointer. (CDB 5-6)
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