McDATA 3000 manual Configuring Tape Device Extension

Configuring Tape Device Extension

This option, referred to as the Report LUNs mode, determines how LUN 0 is represented on this interface. It is used by initiators to determine the LUN inventory of certain devices (typically RAIDs). The Report LUNs command is processed locally and reflects all configured or discovered devices.

Emulate — LUN 0 is statically configured as a local McDATA controller. This mode results in the Report LUNs command being intercepted and an inventory being generated based on the UltraNet configuration. When this occurs, the initiator will follow up with the INQUIRY commands to all the devices included in the UltraNet configuration. Results of Emulate mode will vary depending upon the behavior of the initiator to the emulated inventory. This mode will not work for all configurations.

Passthru — LUN 0 is an actual remote device (either discovered or configured). This mode allows the Report LUNs command and response to flow through the McDATA network unaltered. Only the LUNs in the Report LUNs reply will be known to the initiator.

Emulate mode is the default.

14.Click on the Host tab.

15.Enter the source WWN in the Source WWN field for each LUN that needs filtering applied.

See the example shown in Figure 8-3 and Table 8-2 (page -5) for the source of this WWN.

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