User guide
Table Of Contents
- I
- Introduction
- Distance Solution
- Installation
- Step One: Ensure That Attached Devices Function Properly
- Step Two: Set Up Device Router
- Step Three: Clear the Node Mapping Table of the Host Router
- Step Four: Set Up Host Router
- Step Five: Run Connection Check
- Step Six: Run Subsystem Device Check
- Step Seven: Set Operating Mode
- Step Eight: Power Down Sequence (optional)
- Step Nine: Power Up Sequence (optional)
- Operation
- Installation
- SCSI-Fibre Channel Fabric Connectivity A5814A-003
- System Maintenance
- Serial Port Diagnostics
- Brocade 2800 Fabric Switch
- RAID Manager XP
- Appendix A: SCSI-Fibre Channel Router Specifications
- Appendix B: Diagnostic Status Codes
- Index
Hewlett-Packard SCSI-Fibre Channel Router Installation and User Guide
Revision 2.1.0 Page
17
3.2.2 SCSI ID Settings (SW1)
Switch One (SW1) on the router is ignored for the A5814-003 version of routers. It is used in
the older release of the router and the following describes its use:
Switch One (SW1) on the older version of the router is used to assign a SCSI ID/LUN pair to each
attached device on the SCSI bus for host addressing purposes. There are a maximum of 16 SCSI
ID’s for each SCSI bus and there are 8 SCSI LUN’s associated with each SCSI ID. It is
recommended that no other device share the same SCSI bus with the SCSI-FC Router and the
host server. Also, storage devices must be configured so that only one device responds to any
given SCSI ID on the SCSI bus.
Note: In the SCSI-FC Connectivity solution, the storage devices/arrays are Fibre Channel devices,
however, they will appear as SCSI devices to the host computer. This is because the SCSI-FC
Router is mapping them as such, based on the settings on SW1.
SCSI ID’s are selected using the eight switches of SW1 (these switches are illustrated in Figure 3-4)
Two ID numbers are associated with each switch, except for Switch 3 (which selects/deselects ID 6).
There is no ID switch for SCSI ID 7, as this is normally reserved for the host or SCSI-FC Router. The
router is shipped from the factory to recognize all IDs except 7.
Depending on the number of storage devices proposed for being connected to the host, then the
corresponding number of SCSI IDs should be made available, so that the host will be able to see all
of the drives. Given that there are 15 available IDs (discounting 7), and 8 LUNs, then the total
number of drives is limited to 120.
Figure 3-4. SCSI ID/Switch Mapping
When a switch is toggled, both ID numbers are selected (or deselected). None of the ID numbers
(except 6) can be independently enabled.
§ If the switch is down, the SCSI-FC Router will be able to assign a SCSI ID/LUN associated
with that switch to a device on the FC loop.
§ If the switch is up, the SCSI-FC Router will not assign the SCSI ID/LUN associated with that
switch to a device on the FC loop.
§ The SCSI-FC Router’s power must be cycled for a change in SCSI ID’s to take effect.
When a switch is toggled, both ID numbers are selected (or deselected). None of the ID numbers
(except 6) can be independently enabled.
SCSI ID
14 & 15
SCSI ID
12 & 13
SCSI ID
10 & 11
SCSI ID
8 & 9
SCSI ID
6
SCSI ID
4 & 5
SCSI ID
2 & 3
SCSI ID
1 & 0