Quantum DLT 8000 Product Manual page 207

LOG SENSE Command (4Dh) (continued)
Table 5–29 Log Parameters for READ / WRITE COMPRESSION RATIO LOG SENSE
Page Field Descriptions (Parameter Codes 02h through 09h) (continued)
Field Name
DU
DS
TSD
ETC
TMC
LP
Counter Value
Description
Disable Update. Always 0.
Disable Save. Not supported. This bit always set to 1.
Target Save Disable. Not supported. This bit always set to 1.
Enable Threshold Comparison. Threshold checking is not supported on
this page. Always set to 0.
Threshold Met Criteria. Always 0.
List Parameter. Always set to 0 (parameter codes treated as data
counter).
Parameter Codes 02h through 09h provide a count of the number of bytes
transferred since the current tape cartridge was inserted or since the last
time the counters were reset via a MODE SELECT command.
Parameter Codes 02h and 03h -- Report the count of bytes transferred
from the tape drive to the initiator. Parameter Code 02h reports the
number of full megabytes transferred; Parameter Code 03h reports the
number of bytes less than a full megabyte that have been transferred.
Multiplying the counter returned for Parameter Code 02h by 1,048,576
and then adding the value of the counter returned by Parameter Code
03h results in the actual total bytes transferred to the initiator.
Parameter Codes 04h and 05h -- Report the count of bytes transferred
from the tape drive to the buffer. Parameter Code 04h reports the
number of full megabytes transferred; Parameter Code 05h reports the
number of bytes less than a full megabyte that have been transferred.
Multiplying the counter returned for Parameter Code 04h by 1,048,576
and then adding the value of the counter returned by Parameter Code
05h results in the actual total bytes transferred from tape to the buffer.
Parameter Codes 06h and 07h -- Report the count of bytes transferred
from the initiator to the buffer. Parameter Code 06h reports the number
of full megabytes transferred; Parameter Code 07h reports the number
of bytes less than a full megabyte that have been transferred.
Multiplying the counter returned for Parameter Code 06h by 1,048,576
and then adding the value of the counter returned by Parameter Code
07h results in the actual total bytes transferred from the initiator to the
buffer.
Parameter Codes 08h and 09h -- Report the count of bytes written to the
tape drive. Parameter Code 08h reports the number of full megabytes
transferred; Parameter Code 09h reports the number of bytes less than a
full megabyte that have been transferred. Multiplying the counter
returned for Parameter Code 08h by 1,048,576 and then adding the value
of the counter returned by Parameter Code 09h results in the actual total
bytes written to the tape drive.
Quantum DLT 8000 Tape System
SCSI Commands
5-63