Hewlett Packard
SCSI-Fibre Channel Router Installation and User Guide
Revision 1.0.2
Page 8
3.2.
SCSI-FC Router Mode Switches (SW2)
The SCSI-FC Router mode is selected by utilizing the DIP switches in SW2 (for SW2’s location, see
Figure 3-2). The SCSI-FC Router power must be cycled to effect a change in mode. The first four DIP
switches are independent of the other DIP switches on switch 2 (SW2).
•
DIP switch 4 and 5 are independent of all other DIP switches on SW2 and activate the
Connection Check or the Subsystem Device Check. And when activated simultaneously they
clear the node mapping table.
•
DIP switch 6 is not used at this point.
Mode
Switch
7
Switch
6
Switch
5
Switch
4
Switch
3
Switch
2
Switch
1
Switch
0
DIP
Switch
Setting
Host Router
0
0
0
0
0
1
0
1
Host Microcode Revision
0
0
0
0
1
1
0
1
Device Microcode Revision
1
0
0
0
1
1
0
1
Connection Check
0
0
0
1
0
0
0
0
Device Check
0
0
1
0
0
0
0
0
Clear Mapping Table
0
0
1
1
0
0
0
0
Disk Mode (Device Router)
1
0
0
0
0
0
0
0
Tape Mode (Device Router)
1
0
0
0
0
0
0
1
Table 3-1. DIP Switch Settings for Mode Selection
3.2.1. SCSI-FC
Router
Host Mode
This is the normal operating mode of the host SCSI-FC Router. Two host routers can not exist
simultaneously on the same serial loop.
3.2.2.
Microcode Revision Mode
In this mode, the SCSI-FC Router microcode revision level will be presented as a status code on
the Status LED. The microcode revision is a three digit number. A decimal separates the first digit
from the second.
Example: Revision number 7.60
To run the Microcode Revision mode follow the steps below:
1. Power off the SCSI-FC Router.
2. If user is checking the host router microcode, SW2 must be placed in the host mode and
if user is checking the device router microcode, SW2 must be placed in the device mode.
3. Power on the SCSI-FC Router.
4. Watch the blinking pattern of the Status LED (see section 3.1.4 to decipher the LED readout).
5. After revision level is determined, power off the router, return it to its proper operating
mode and power it on.
3.2.3.
Connection Check Mode
In this mode, the host router will perform a test to ensure that communication to the device
router is operating correctly. If communication can not be established or if a high number of
errors are reported then the test will fail.
3.2.4.
Subsystem Device Check Mode
In this mode, the SCSI-FC Router will talk to the SCSI device(s) (disk or tape drives) attached
to the device router ensuring that proper communication is established.
