Quantum DLTtape DLT1, Interface Manual

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DLT1/VS80 SCSI Interface Guide
81-81276-01 Rev A01 July 2004 4-77
4.10.5 Control Mode Page (0Ah)
The Control Mode Page allows the user to determine whether the tape drive returns CHECK
CONDITION status when one of the write and read error counters has reached a specified threshold.
Figure 4-50.
Control Mode Page — Data Format
Bit
Byte
7 6 5 4 3 2 1 0
0 Rsv’d Page Code (0Ah)
1 Page Length
2 Reserved RLEC
3 Queue Algorithm Modifier Reserved QErr DQue
4 EECA Reserved RAENP UAAENP EAENP
5 Reserved
6 - 7
(MSB)
Ready AEN Holdoff Period
(LSB)
Table 4-46. Control Mode Page — Field Descriptions
Field Name Description
Page Code The Page Code identifies the type of MODE SENSE page being transferred. The
value returned for the Page Code is 0Ah (Control Mode Page).
Page Length The Page Length indicates the number of bytes in the Control Mode Page that
follow this byte. The value returned for this byte is 06h.
RLEC Report Log Exception Condition. The RLEC bit indicates whether the tape drive
should return CHECK CONDITION status with the Sense Key set to Unit
Attention (06h) when one of its write and read error counters reaches a specified
threshold, as follows:
0 Do not return Unit Attention when a threshold
condition is met.
1 Return Unit Attention when a threshold condition is
met.
Queue Algorithm
Modifier The value returned for this field is 0.