Quantum DLT1/VS80 SCSI, Interface Manual

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Chapter 4: SCSI Commands
4-74 July 2004 81-81276-01 Rev A01
4.10.3 Read/Write Error Recovery Page (01h)
The tape drive supports the Error Recovery Page, which has the following format:
Figure 4-48. Read / Write Error Recovery Page — Data Format
Table 4-43.
MODE SENSE Page — Field Descriptions
Field Name Description
PS Parameters Savable. A bit of 1 indicates that the tape drive can save the page in
nonvolatile memory. If the PS bit is 0, the tape drive cannot save the supported
parameters. (The tape drive does not support Savable pages.)
Additional Page Length This field indicates the number of bytes in that page. However, the value does not
include bytes 0 and 1. The tape drive returns the length on MODE SENSE and
must subsequently set it to the same value when performing MODE SELECT.
Bit
Byte
7 6 5 4 3 2 1 0
0 PS (0) 0 Page Code (01h)
1 Additional Page Length (0Ah)
2 Rsv’d Rsv’d TB Rsv’d ERR PER DTE DCR
3 Read Retry Count
4 - 7 Reserved
8 Write Retry Count
9 - 11 Reserved
Table 4-44.
Read / Write Error Recovery 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).
Additional Page Length The Additional Page Length indicates the number of bytes that follow this byte.
The value returned for this byte is 0Ah.
TB Transfer Block. This function (when not fully recovered) is not supported; this bit
is always 0.