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161Network Storage Router N1200 User Guide
B
Controller LUN Commands
The HP StorageWorks Network Storage Router supports and executes the set of
SCSI-3 commands listed in this Appendix. These commands can be received as
FCP commands over the Fibre Channel bus and are supported by the Controller
LUNs. This document refers to these commands as Controller LUN commands.
Complete definitions of SCSI-3 commands can be found in the SCSI-3 standard
available from the American National Standards Institute (ANSI).
This document divides Controller LUN commands into two categories:
■ General Commands, page 162
■ Copy Manager Commands, page 166
To first determine which router LUNs are controller LUNs and which are device
LUNs, the host software must use the Inquiry general command.
Controller LUNs are addressable in all addressing modes. In SCC mode, there is
one controller LUN. In Auto-Assigned and Indexed modes, there can be up to four
configurable controller LUNs.
To access Copy Manager or other general management features, the commands
must be sent to the router controller LUNs.
To initiate Extended Copy operations (a subset of Copy Manager), the commands
can be sent to any tape device LUN attached to the router. The four controller
LUNs allow the host software to run multiple concurrent Extended Copy
commands.
Note: Controller LUNs are numbered in sequence following the last device LUN,
without any gaps. A controller LUN may be placed anywhere in custom tables.