McDATA 3000 manual Configure Ficon Tape Read Pipelining Parameters

8

Configuring a 1x1 Ethernet Wide Area Network

Configure FICON Tape

Read Pipelining

Parameters

•Deselect All - Click Deselect All to deselect all checked FICON Read Write Pipelining interfaces.

•Back - Click Back to return to the previous dialog.

•Next - Click Next to proceed to the next dialog.

•Cancel - Click Cancel to exit the FICON Global Settings Wizard.

•Help - Click Help, or press F1, to see information about this dialog.

Use this dialog to select and enter the Tape Read Pipelining values for the selected FICON interfaces.

•Set - Check the Set box to enter a value for the parameter displayed to the right. The value in the corresponding field is only used if the Set box is checked.

•Enable Tape Read Pipelining - Check this box if Tape Read Pipelining should be enabled on this interface.

•If a data path is mapped for this interface, UltraNet ConfigManager ensures that the Tape Read Pipelining option is also enabled on the peer interface.

•Max Read - In this field, enter the number of channel commands that may be outstanding at a given time during read pipelining. Too small of a value will result in poor performance. The value should be chosen carefully based upon the typical tape channel program that requires optimum performance.

•Max ECBs - In this field, enter the maximum number of devices which may be read pipelining on a path. Pipelining does not increase performance if there are many devices active on one path, and can actually slow performance if there are too many active devices. The default value is 8.

•Back - Click Back to return to the previous dialog.

•Next - Click Next to proceed to the next dialog.

•Cancel - Click Cancel to exit the FICON Global Settings Wizard.

•Help - Click Help, or press F1, to view the help information for the dialog.

8-28 McDATA UltraNet Edge 3000 User Guide