Quantum Instruments DLT 7000 - Manual (Page 152)

SCSI Commands
5-48 Quantum DLT 7000 Tape System
LOG SENSE Command (4Dh) (continued)
5.8.4 Last n Error Events Page (07h)
This page returns one parameter at a time that contains the ASCII text for the
specified event log. The Parameter Number field in the CDB specifies the log
event to return. The log events in EEPROM are numbered from 0 to 255, after
which the number wraps back to 0; only a limited number of events are stored at
a given time (up to 48). The log event that is returned is the one whose
Parameter Code is equal to, or the first one greater than, the Parameter Number
specified in the command control block.
Bit
Byte
7 6 5 4 3 2 1 0
0 Reserved Page Code (07h)
1 Reserved
2 - 3
(MSB)
Page Length
(LSB)
Figure 5–20 Last n Error Events LOG SENSE Header Format
Table 5–22 Last n Error Events LOG SENSE Header Field Descriptions
Field Name Description
Page Code The Page Code echoes the page code that was specified in the LOG
SENSE command descriptor block.
Page Length The Page Length field specifies the total number of bytes contained in
this log page, not including the four bytes that make up the header.