Page
50
LTO SCSI Interface Manual
The first four-byte parameter of a pair represents millions of bytes (10
6
.) The second
four-byte parameter of a pair represents the difference between the millions of bytes
and the total number of bytes as a positive number in the range of 0 to 999,999.
Thus the total number of bytes is the first four-byte parameter in bytes plus the
second four-byte parameter. Parameters 0 and 1are in percent, i.e. 200 represents
200% compression. Compression ratios will be most accurate after 10
8
bytes have
been read or written.
Completion Status
Code
Message
Description
00h
Good Status
•
The drive is ready to perform any appropriate command.
•
The requested log page is returned.
•
The tape position is not changed.
02h
Check Condi-
tion
Use the Request Sense command to retrieve status information. Possi-
ble Sense Keys are:
Code
Message
Description
04h
Hardware Error
Parity error on the SCSI bus or drive
hardware failure.
05h
Illegal Request
The Command Descriptor Block is invalid.
06h
Unit Attention
The cartridge was changed, or the drive
was reset prior to this command.
