Table B-11: Device Type Specific Target Descriptor Parameters For Block Device Types - Spectra Logic Spectra S50 User Manual

Table B-10: Identification Descriptor Target Descriptor Format
Bit
Byte 7
3
4
5 Reserved
6
7
8 (MSB)
n
n+1
27
28
31
The Descriptor Type Code, Peripheral Device Type and NUL fields and the device type
specific parameters are described in Target Descriptors on page 124.
The identifier length will be 20 or less. If the identifier length is 20, there will be no
reserved bytes between the target descriptor parameters and the device type specific
parameters.
Some combinations of code set, association, identifier type, identifier length and
identifier do not uniquely identify a logical unit to serve as a copy target device. The
application client will not send such combinations to the copy manager.
Device Type Specific Target Descriptor Parameters for Block Device Types
The format for the device type specific target descriptor parameters for block device
types (device type code values 00h, 04h, 05h, 07h, and 0Eh) is shown in Table B-11.

Table B-11: Device Type Specific Target Descriptor Parameters for Block Device Types

Bit
Byte 7
28
29 (MSB)
31
Appendix B. Extended Copy—83h—SPC2 Specifications
6 5 4
Reserved
Association
Identifier Length (n-7)
Device Type Specific Parameters
6 5 4
Reserved
Disk Block Length
130
3 2
Reserved
Code Set
Identifier Type
Reserved
Identifier
Reserved
3 2
PAD
1 0
(LSB)
1 0
Reserved
(LSB)