Mode Sense (10)
144 SL500: Interface Reference Manual • July 2008 Revision: F • 96122
Mode Sense (10) Data
The library returns the following mode sense data:
■ A eight-byte Mode Parameter Header followed by:
■ One mode page or all mode pages in the order specified in the Page Code list.
The mode pages available are those defined for medium changers in the Fibre
Channel standard, including a Fibre Channel Logical Unit page, a Fibre Channel
Port Control page, a TapeAlert page, an Element Address Assignment page, a
Transport Geometry Mode page, and a Device Capabilities page and those
defined for medium changers in the SCSI standard, including a SCSI Logical
Unit page and a SCSI Port Control page.
■ A 412 byte Physical Configuration Page
■ The data can be truncated to the length specified in the allocation length field.
Mode Sense (10) Parameter Header Definition
The following table shows the Mode Sense Parameter Header page.
TABLE 6-46 Mode Sense Parameter Header Page
Byte
Bit
76543210
0 MSB of Mode Data Length
1 LSB of Mode Data Length
2 Reserved
3 Reserved
4 Reserved
5 Reserved
6 MSB of Block Descriptor Length
7 LSB of Block Descriptor Length
Mode Sense (10) Parameter Header Page Definitions:
Mode Data Length This field indicates the number of bytes of parameter information available to
be transferred to the initiator, regardless of the allocation length. This field
excludes the Mode Data Length byte but includes three additional Mode
Parameter Header bytes and any mode pages that follow.
Block Descriptor Length The library does not support block descriptors (00h).
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