Reference Guide

Chapter 4 SCSI Commands
READ ATTRIBUTE Command (8Ch)
DLT-S4 Interface Reference Guide 254
Table 143 PARTITION USAGE
HISTORY Attribute Parameter
Data — Field Descriptions
Field Description
Current Amount
of Data Written
Indicates the amount of data physically written to the medium in the partition
specified by the Partition Number field in the CDB during this load of the medium.
This value is expressed in increments of 1,048,576 bytes; that is, a value of 1 means
1,048,576 bytes, 2 means 2,097,152 bytes, and so on.
Current Write
Retries Count
Indicates the total number of times the drive performed a Write retry in the
partition specified by the Partition Number field in the CDB during this load of the
medium.
Current Amount
of Data Read
Indicates the amount of data physically read from the medium in the partition
specified by the Partition Number field in the CDB during this load of the medium.
This value is expressed in increments of 1,048,576 bytes; that is, a value of 1 means
1,048,576 bytes, 2 means 2,097,152 bytes, and so on.
Current Read
Retries Count
Indicates the number of times the drive performed a Read retry in the partition
specified by the Partition Number field in the CDB during this load of the medium.
Previous
Amount of Data
Written
Indicates the amount of data physically written to the medium in the partition
specified by the Partition Number field in the CDB during the previous load of the
medium. This value is expressed in increments of 1,048,576 bytes; that is, a value of
1 means 1,048,576 bytes, 2 means 2,097,152 bytes, and so on.
Previous Write
Retries Count
Indicates the total number of times the drive performed a Write retry in the
partition specified by the Partition Number field in the CDB during the previous
load of the medium.
Previous
Amount of Data
Read
Indicates the amount of data physically read from the medium in the partition
specified by the Partition Number field in the CDB during the previous load of the
medium. This value is expressed in increments of 1,048,576 bytes; that is, a value of
1 means 1,048,576 bytes, 2 means 2,097,152 bytes, and so on.
Previous Read
Retries Count
Indicates the number of times the drive performed a Read retry in the partition
specified by the Partition Number field in the CDB during the previous load of the
medium.
Total Amount of
Data Written
Indicates the amount of data physically written to the medium in the partition
specified by the Partition Number field in the CDB since the last medium format.
This value is expressed in increments of 1,048,576 bytes; that is, a value of 1 means
1,048,576 bytes, 2 means 2,097,152 bytes, and so on.