How To Handle The Worm Cartridge In The Drive - Sony SDX-1100V/R User Manual

13.Appendix F: AIT based WORM system
How to initialize a WORM cartridge to AIT Native mode.
1Partition
Mode Sense (Page 31h)
Mode Select (Page 31h)
Mode Select (Page 11h)

13.5. How to handle the WORM cartridge in the drive.

1. DATA READ: There is no restriction when reading data in WORM mode.
2. DATA WRITE: Any attempt to overwrite existing data will be rejected with a Check Condition status and
sense data.
● Write Projected Error: 07-27-00-07 (Sense Key, ASC, ASCQ, Run-time-error)
● Append Position Error: 03-27-04-f7
The AIT WORM drive will allow write operations when:
(1) Append Write Operation is allowed only at End-Of-Data (EOD) area. Prior to an Append Write Operation,
several commands can be used to position the drive at EOD area:
● Space to EOD (space code 3)
● Space to last record (could be a block, File-mark, Set-mark)
● Locate to last block
● Read until EOD
For example:
Space EOD
Write
Write End
No
Yes
END
13-2
AIT=1, DEVICE=1, ABS=1, SysLogAlive=11, Span=0Ah
Set IDP bit to 1. Additional Partition=0.
SONY AIT-5 drive SDX-1100V series Ver.1.0