HP Surestore Tape Library Model 20/700 HP Surestore Bridge FC 2/1 LV and FC 4/ - Page 213
Logical Unit Number field on the Virtual Inquiry Command. The bridge will
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In the situation where the SCSI host is unable or unwilling to talk to any LUN except for the known controller LUN, the host can perform a REPORT LUNS command (See Table 14 ). The bridge will respond with a list of all addressable LUNs. Each of these LUNs reported can then be queried for inquiry data. The first two bytes of each SCC LUN are inserted into the FCP Logical Unit Number field on the Virtual Inquiry Command. The bridge will forward the inquiry to the device and return that device's Inquiry Data back. Table 14 Format Report of Virtual Inquiry Command Bit Byte 7 6 5 4 3 2 1 0 0 Operation Code (d1h) 1 Reserved CmdDt EVPD 2 Page Code or Operation Code 3 Reserved 4 Reserved 5 (MSB) FCP Logical Unit Number 6 (LSB) 7 Allocation Length 8 Reserved 9 Control Byte EVPD - CmdDt: The combination of EVPD and CmdDt determine the use of the Page Code or Operation code field, and the type of Inquiry data returned: (CmDt | EVPD): 00: return standard Inquiry Data (as shown below) 01: return Vital Product Data (VPD) for the specified Page Code 10: return Command Support Data for the specified Operation Code 11: invalid bit combination Appendix B In-Band Management 215
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