15.Appendix G
SONY AIT-1Turbo drive SDX-460V series Ver.1.0
15-2
15.6.
AIT Cassette Secondary ID in MIC
Secondary ID
ASCII HEX
value
Definition
1
31h
15m AIT cartridge that serial number is smaller equal than a number of 6 figures.
2
32h
70m middle length of AIT cartridge that serial number is smaller equal than a number of 6
figures.
3
33h
170m standard length of AIT cartridge that serial number is smaller equal than a number of 6
figures.
4
34h
230m long length of AIT cartridge that serial number is smaller equal than a number of 6
figures.
5
35h
185m long length of AIT cartridge that serial number is smaller equal than a number of 6
figures
V
56h
185m AIT cassette that serial number is greater equal than a number of 7 figures.
W
57h
230m AIT cassette that serial number is greater equal than a number of 7 figures.
X
58h
170m AIT cartridge that serial number is greater equal than a number of 7 figures.
Y
59h
70m middle length of AIT cartridge that serial number is greater equal than a number of 7
figures.
Z
5Ah
15m short length of AIT cartridge that serial number is greater equal than a number of 7
figures.
15.7.
Unreadable MIC
The Sony SDX-460V applies smart retry sequences when the drive has problems reading MIC. Each data chunk in
MIC has a checksum. Additionally, the drive always employs a verify sequence after writing data to MIC. The
contents of MIC are as follows.
(1)
Manufacturer Information
(2)
System Log Information (statistical information for tape errors, etc.)
(3)
Map (for Super Fast Search)
(4)
User Partition Note/ User Volume Note
If the contact type of MIC becomes unreadable under DDS Emulation Mode, Sony SDX-460V treats the AIT-E
Turbo, AIT-1 Turbo and AIT-1 media as a non-MIC cassette with no check condition status; however, the MIC
availability can be checked by using Mode Sense Page 31h. The System Log information is saved to tape
automatically. In other hand, under AIT Native Mode, SDX-460V generate the check condition code.
A cassette with damaged MIC can be reformatted with the Mode Select Page 11h. If MIC becomes readable during
re-initialization, the cassette will be formatted as a MIC media.
15.8.
Example SCSI Command Sequence for MIC
15.8.1.
How to create User Notes in AIT-E Turbo, AIT-1 Turbo MIC
The phrase “User Note” includes both User Volume Note and User Partition Note. User Notes are all variable in size
from 1 byte up to the available user memory size. SDX-460V generates error (illegal parameter list length), if the
User Volume Note Data Size or the User Partition Notes are ZERO. SDX-460V will allocate memory for User Notes
by the unit of 16 bytes that include overhead for the memory management. For this reason, please check free byte
count of the MIC before creating an User Note.
Содержание AIT-SDX460
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