Compaq Infortrend manual Maximum Tag Count Tag Command Queuing

controller to keep waiting for a drive, and it may sometimes cause a host timeout.

Choose “SCSI I/O Timeout –Default (7 seconds),” then press [ENTER]. A list of selections will appear. Move cursor bar to a selection, then press [ENTER]. Choose Yes in the dialog box that follows to confirm the setting.

Maximum Tag Count (Tag Command Queuing)

The controller supports tag command queuing with an adjustable maximum tag count from 1 to 128. The default setting is “Enabled” with a maximum tag count of 32. Choose “Maximum Tag Count”, then press [ENTER]. A list of available tag count numbers displays. Move cursor bar to a number, then press [ENTER]. Choose Yes in the dialog box that follows to confirm the setting.

IMPORTANT!

•Every time you change this setting, you must reset the controller for the changes to take effect.

•Disabling Tag Command Queuing will disable hard drives’ built-in cache for Write-Back operation.

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