Sony SDX-800V/R manual Important Notice, Write-Protected WP Bit in Mode Sense Data

13. Appendix F

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.

Page 31h: AIT Device Configuration Page

Bit	7	6	5	4	3	2	1		0
Byte
0	Reserved				Page Code (31h)
1				Page Length (8)
2	AIT	DEV	ABS	ULP	PRT	PNJ		SYSLOG
3				SPAN (0Ah)
4	MIC	WORM			Reserved
5				Reserved					WORM
									Capable
6				Reserved
7				Reserved
8				Reserved
9				Reserved

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-3Ex drive SDX-800V series Ver.1.1 13-1