IBM totalstorage 200, Service Manual

Page: 117 / 180

Bypassing an unknown power-on password
When a power-on password is set, POST does not complete until you enter the
password. If you forget the power-on password, you can regain access to the
appliance through any of the following methods:
v
Enter the administrator password at the power-on prompt, if an administrator
password has been set.
v
Start the Configuration/Setup Utility program and change the power-on password.
v
Change switch 8 of switch block 1 (SW1) on the system board to the opposite
position to bypass the power-on password check. You can then start the
Configuration/Setup Utility program and change the power-on password.
Using the SCSISelect utility program
SCSISelect is a built-in, menu-driven configuration utility program that you can use
to:
v
View the default SCSI IDs
v
Locate and correct configuration conflicts
v
Perform a low-level format on a SCSI hard disk
The following sections provide the instructions needed to start the SCSISelect Utility
and descriptions of the menu choices available.
Starting the SCSISelect utility program
To start the SCSISelect utility program:
1. Switch the appliance ON.
2. When the
<<< Press <CTRL><A> for SCSISelect Utility! >>>
prompt appears,
press Ctrl+A .
Note: If an administrator password has been set, a prompt appears asking you
to enter the password to start the SCSISelect Utility program.
3. When prompted, select either channel A (internal) or channel B (external).
4. Use the arrow keys to select a choice from the menu.
v
Press Esc to return to the previous menu.
v
Press F5 to switch between color and monochrome modes (if your monitor
permits).
5. Follow the instructions on the panel to change the settings of the selected
items; then, press Enter .
Choices available from the SCSISelect menu
The following selections appear on the SCSISelect Utility menu:
v
Configure/View Host Adapter Settings
Select this to view or change the SCSI controller settings. To reset the SCSI
controller to its default values, press
F6 ; then, follow the instructions that appear
on the panel.
You can view or change the following controller settings:
– Host Adapter SCSI ID
Select this to view the SCSI controller ID, which is normally 7.
– SCSI Parity Checking
Select this to view the assigned value of Enabled.
Chapter 5. Configuring the appliance
101