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LOG SENSE Command (4Dh) SDLT 600 SCSI Interface Guide

4-48 January 2005 81-81200-02 REV A01

Figure 4-22. Log Parameters Format for Last n Error Events LOG SENSE Page

Table 4-25. Last n Error Events LOG SENSE Header — Field Descriptions

Field Name Description

Page Code Echoes the page code specified in the LOG SENSE CDB.

Page Length Specifies the total number of bytes contained in this log page, excluding

the 4 bytes that make up the header.

Bit

Byte

7 6 5 4 3 2 1 0

0 – 1

(MSB)

Parameter Code

(LSB)

DU DS TSD ETC TMC LBIN LP

3 Parameter Length

4 – n

(MSB)

ASCII String for Event n

(LSB)

1. The byte 2 fields are collectively referred to as the Parameter Control Byte. For definitions of the bits that

compose the Control Byte (the byte 2 in the above figure), refer to “Read (Page 03h) / Write (Page 02h) Error

Log Page” on page 4-43.

Table 4-26. Log Parameters for Last n Error Events LOG SENSE Page — Field Descriptions

Field Name Description

Parameter Code Parameter Code values are assigned from 0 to 63 (decimal), where 0 is

the oldest event stored and the highest Parameter Code returned is the

most recent event.

ASCII String for

Event n

The text of the parameter includes a “Packet #” that is a value from 0 to

255. The drive assigns this internal number when the packet is written to

EEPROM. A value of 0 is normally the oldest packet, but packet

numbers wrap back to 0 after reaching 255.

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