Installation guide

Setting and Modifying Controller Options
4-30 GAM Client v3.00 and WSAM User’s Manual
Queue Full status.
• Vendor Unique Test Unit Ready Status. Enables a vendor unique
TUR effect. A TUR sent to an offline LUN will get a hard error
status returned.
• No Pause On Controller Not Ready. When the controller is not
fully started, certain commands encounter a pause. This turns off the
pause.
• Auto Restore (Automatic Failback). Default=Disabled. When
enabled in a dual-active controller system, Automatic Failback
allows automatic recovery of a partner controller when a
replacement is inserted. If you enable this option, you must also
enable the Controller Present/Fault Signals option.
• Force Simplex. Allows duplex firmware to work in a simplex
environment by skipping some Active-Active operations.
• Reset Propagation. Allows a port that executes an internal reset to
cause a reset event to occur on its attached interface.
• Multi-port Reset. Allows execution of an internal reset on a port
only if a logical drive has been reserved through that port.
• Controller Present/Fault Select. Default=A. Allows the user to
select between two sets of backplane signals (A or B) to use when
detecting the presence of a partner controller. This option has no
effect in a simplex environment.
• Controller Present/Fault Signals. Default=Enabled. Enables the
use of backplane signals for sensing the presence of, or possible
fault in, the partner controller in a dual-active controller
configuration. If you have enabled Auto Restore (Automatic
Failback), enable this function also. This parameter is necessary for
hot plugging controllers and automatic failback. This parameter is
not available through the LCD/VT100 configuration utility.
• Disable (by checking) or enable (by unchecking) the following option:
• Busy On Failback. Causes all pending commands to be quietly
dropped during failback. This is intended to help hosts that are
confused by Queue Full.