Addressing Methods and Table Structures
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Network Storage Router M2402 User Guide
SCC (SCSI Controller Command) Addressing Method
When a router is configured to use SCSI Controller Command addressing (SCC)
and a command is received, the router either will respond as a controller device to
the FCP Initiator or will route the FCP request to a specified BUS:TARGET:LUN.
If a request using the Peripheral Device Addressing method is received (an FCP
command with the LUN field bits 7 and 6 of byte 0 set to 0), the router routes the
request to the internal processor, which acts on the command directly. If a request
using the Logical Unit Addressing method is received (bits 7 and 6 set to 00x10),
the request is routed to the BUS:TARGET:LUN as specified in the defined field.
Host systems using SCC addressing will typically do initial device discovery
using the Peripheral Device Addressing method. On issuing an Inquiry command
to the router, the host will receive the router Inquiry data, indicating the device
type as a controller device (Inquiry data indicates device type is 0xC). The host
will then know that subsequent commands to router-attached devices will use the
Logical Unit Addressing method.
The host can perform discovery by either progressing through the
BUS:TARGET:LUN values, as would a standard SCSI driver, or by issuing a
Report LUNs command. This command is sent to the router (using the Peripheral
Device Addressing method). The router returns a table indicating the attached
devices. The host can then perform actions on these devices directly without
performing further discovery processing.
Содержание StorageWorks M2402
Страница 10: ...Contents x Network Storage Router M2402 User Guide F Electrostatic Discharge Grounding Methods 250 Index ...
Страница 18: ...About this Guide xviii Network Storage Router M2402 User Guide ...
Страница 50: ...Installation 32 Network Storage Router M2402 User Guide ...
Страница 60: ...Configuration Overview 42 Network Storage Router M2402 User Guide ...
Страница 82: ...Visual Manager User Interface 64 Network Storage Router M2402 User Guide Figure 39 Power supply screen ...
Страница 193: ...Serial Telnet User Interface 175 Network Storage Router M2402 User Guide Figure 120 Download Firmware menu ...
Страница 194: ...Serial Telnet User Interface 176 Network Storage Router M2402 User Guide ...
Страница 224: ...Serial and Ethernet Pin Assignments 206 Network Storage Router M2402 User Guide ...
Страница 264: ...Regulatory Compliance Notices 246 Network Storage Router M2402 User Guide Japanese Notice ...