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Chapter 4 SCSI Commands
MODE SENSE (6) / (10) Command (1Ah / 5Ah)
DLT-S4 Interface Reference Guide
165
Disconnect / Reconnect
Page (02h)
4
The drive supports the Disconnect / Reconnect Page, the format is shown
in the following figures; for Parallel SCSI, see
figure 86
; for Fibre Channel,
see
figure 87
; and for SAS, see
figure 88
.
Figure 86
Parallel SCSI
—
Disconnect / Reconnect
MODE
SENSE
Page — Data Format
TB
Transfer Block. The drive does not support the Transfer Block (when not fully
recovered) function. Always set to 0.
EER
Enable Early Recovery. Always set to 1.
PER
Parity Error. When set to 1, enables reporting of
CHECK CONDITION
for
recovered
READ
/
WRITE
errors. Default is 0.
DTE
Disable Transfer on Error. Always set to 0.
DCR
Disable ECC Correction Bit. Always set to 0.
READ Retry Count
Reports the maximum number of re-reads the drive attempts before declaring an
unrecoverable error.
WRITE Retry Count
Reports the maximum number or overwrite retries the drive attempts before
declaring an unrecoverable error.
Bit
7
6
5
4
3
2
1
0
Byte
0
PS (0)
SPF (0)
Page Code (02h)
1
Page Length (0Eh)
2
Buffer Full Ratio (0)
3
Buffer Empty Ratio (0)
4 — 5
(MSB)
Bus Inactivity Limit (0)
(LSB)
Field
Description