Table A-10: Device-Specific Field - Device Type 00H; Table A-11: Device-Specific Field - Device Type 01H - Spectra Logic Spectra S50 User Manual

Device-specific information is currently defined for device types 00h and 01h. Device-
specific information for device types other than 00h and 01h are not yet defined. Until
device-specific information is defined for these other types, all block devices will use
device-specific information of type 00h and all stream devices will use the device-
specific information of type 01h.
Device-Specific Information for Block Device Types (Type 00h)
Device-Specific information for Block Device Types (Device Type 00h) is shown in
Table A-10.

Table A-10: Device-Specific Field - Device Type 00h

Bit
Byte 7
0
1 (MSB)
2
3
The only information required for the block device is the Disk Block Length for the
device and the PAD bit. The Disk Block Length is the number of bytes in a Disk Block
for the logical device being addressed. The PAD bit is used in combination with the
CAT bit to control determine the actions on Inexact Segments. The interaction for
various combinations of PAD and CAT bits is shown in Table A-14 on page 94.
Device-Specific Information for Stream Device Types (Type 01h)
Device-specific information for Block Device Types (Device Type 01h) is shown in
Table A-11.

Table A-11: Device-Specific Field - Device Type 01h

Bit
Byte 7
0
1 (MSB)
2
3
Appendix A. Extended Copy—83h—143r1 Specifications
6 5 4
Reserved
Disk Block Length
6 5 4
Tape Block Length
3 2
Pad
3 2
Pad
91
1 0
Reserved
(LSB)
1 0
SILI Fixed
(LSB)