Appendix F: Ait Based Worm System; Important Notice; Write-Protected (Wp) Bit In Mode Sense Data; How To Detect A Worm Cartridge - Sony SDX-900V Product Specifications

13. APPENDIX F: AIT based WORM system

13.1. Important Notice

(1) AIT WORM cartridges come equipped with Remote MIC.
(2) A new AIT WORM cartridge can be initialized to use either AIT native mode or DDS emulation mode.
(3) WORM features are supported in AIT tape drives with firmware revision level 0103 or later.

13.2. Write-Protected (WP) Bit in Mode Sense Data

Although the cartridge write-protected activator is permanently set to safe for all WORM media, the WP bit is not
used in WORM mode and will be set to ZERO.

13.3. How to detect a WORM cartridge.

The WORM bit of AIT Device Configuration Page (31h) is used to indicate the presence of a WORM media.
Bit 7
Byte
Reserved
0
1
AIT
2
3
MIC
4
5
6
7
8
9

13.4. How to initialize a WORM cartridge.

A new WORM cartridge can be initialized in two ways:
1. Mode Select Operation
2. Write Operation
Note: when using Write Operation (option 2), a new WORM cartridge will be initialized as one partition DDS
emulation mode.
SONY AIT-4 drive SDX-900V series Ver.2.1
Page 31h: AIT Device Configuration Page
6 5
Page Length (8)
DEV ABS
WORM
Reserved
4 3
Page Code (31h)
ULP PRT PNJ
SPAN (0Ah)
Reserved
Reserved
Reserved
Reserved
Reserved
13. Appendix F
2 1 0
SYSLOG
WORM
Capable
13-1