| 摘要 |
A method and system are disclosed for processing a unit attention signal from a target device (18) in a Fibre Channel-to-SCSI network (10) having a plurality of Fibre Channel hosts. One embodiment of the method includes the steps of, in a router: (a) receiving a first command for said target device (18) from a first one of said Fibre Channel hosts; (b) forwarding said first command to said target device (18); (c) determining, at said target device (18), if said target device (18) has undergone a status changing event since last receiving any command; (d) if said target device (18) has undergone such a status changing event, then; (1) at said target device (18), issuing said UA signal in response to said first command; (2) forwarding said UA signal to said router and caching said UA signal at said router; (3) updating a register for said target device (18) to indicate said UA signal is outstanding; (4) forwarding said UA signal to said first host and updating a UA table to indicate said UA signal has been forwarded to said first host; and (e) repeating steps (a)-(d) for a subsequent command from any of said Fibre Channel hosts, wherein said first command is said subsequent command and wherein said first host is the issuing host. |
