Last N Error Events List - Sony DDS-4 Product Description Manual

6. COMMAND SPECIFICATION

6. 06. 5 Last N Error Events List

This page is used to report information on soft and hard errors encountered by the device during normal operation. Each
parameter corresponds to an encountered error and is a report of what type of error occurred and when it occurred. The
format of the page is given below:
Bit 7
Byte
0
1
2 (MSB)
3
4 (MSB)
5
6 DU (0)
7
8
17
The Parameter Codes supported are 1 through 30 where 30 is the maximum number of entries in the log page.
If there are no entries, the command will return the Page Header with the Page Length field set to 0.
Each error event record contains diagnostic information for a single error encountered by the device. The parameter
codes associated with the error-event records indicate the order in which the errors occurred. A higher parameter code
indicates that the error event occurred later in time.
Each parameter entry is 10 bytes long and has the following format:
When the log page becomes full, no more entries will be added until the log is cleared (using one of the methods
described previously) or a reset occurs. The current cumulative values will be returned regardless of the page control
field in the LOG SENSE CDB.
6 - 24 SONY SDT-10000/SDT-11000 DDS Tape Drive
6 5
DS (1) TSD (0)
Table 6-15: Last N Error Events Page
Meaning
Byte Offset
Result Message (see Diagnostic Section)
0 - 4
Unused
5
Timestamp (number of 50 ms increments since power-on)
6 - 9
Table 6-16: Error Event format
4 3
Page Code (07h)
Reserved
Page Length (n*14)
Parameter Code
ETC (0) TMC (00)
Parameter Length (0Ah)
Parameter Value
LOG SENSE
2 1 0
(LSB)
(LSB)
Reserved LP (1)