Troubleshooting

Setting and Confirming SCSI Parameters

Step 3. Find the controller handle designation, <cntrl_handle>.

At the EFI Shell prompt, issue the drvcfg command as illustrated in the following example:

Shell> drvcfg

Configurable Components

Drv[20] Ctrl [1A] Lang [eng]

Drv[20] Ctrl [1B] Lang [eng]

Drv[20] Ctrl [1D] Lang [eng]

Drv[20] Ctrl [1E] Lang [eng]

Drv[20] Ctrl [23] Lang [eng]

Drv[21] Ctrl [22] Lang [eng]

Drv[24] Ctrl [27] Lang [eng]

Drv[24] Ctrl [2B] Lang [eng]

Drv[24] Ctrl [2C] Lang [eng]

Drv[25] Ctrl [26] Lang [eng]

Drv[28] Ctrl [29] Lang [eng]

Drv[2D] Ctrl [30] Lang [eng]

Drv[2E] Ctrl [2A] Lang [eng]

Drv[2E] Ctrl [2F] Lang [eng]

Drv[48] Ctrl [1F] Lang [eng]

From the output of the drvcfg command, look for the line(s) where the

NNin Drv[NN]is same as the <drvr_handle> for the driver(s) you are using.

The 2nd column, Ctrl [NN], contains the corresponding

<cntrl_handle>, where NN is the controller handle. For example, controller handle 1A, 1B, 1D, 1E, and 23 correspond to driver handle 20, and controller handle 22 corresponds to driver handle 21.

Step 4. Once the driver handle and the controller handle are identified, the SCSI parameters can be displayed and set for any driver and corresponding controller (HBA) on the SCSI bus.

Enter the drvcfg -s <drvr_handle> <cntrl_handle> command at EFI shell prompt. The Global Properties screen containing a list of the controller (HBA) to which the controller handle corresponds is displayed; refer to the following example:

Chapter 3

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