Scsi Bus Configuration; Fibre Channel Port Configuration - HP M2402 User Manual

SCSI Bus Configuration

The router can appear on a SCSI bus as a pair of initiators. The primary Initiator
ID can be set to any valid SCSI address (0-15) and is used for most traffic. The
alternate Initiator ID can also be set to any valid SCSI address (0-15) and is for
use with high priority traffic. The Initiator IDs (primary and alternate) should not
be set to the same SCSI address and no other devices on the SCSI bus may use
either of these SCSI addresses.
The router can also appear as one or more Target ID on a SCSI bus. By default, no
Target IDs are set up.
The router provides the capability to reset SCSI buses during the router boot
cycle. This allows devices on a SCSI bus to be in a known state. The reset option
can be enabled/disabled during configuration of the router. The SCSI bus reset
feature is enabled in the default configuration but should be disabled for
configurations using multiple initiators, tape changers or other devices that have
long reset cycles, or for environments that are adversely affected by bus resets.
The router negotiates the maximum values for transfer rates and bandwidth on a
SCSI bus. If an attached SCSI device does not allow the full rates, the router will
use the best rates it can negotiate for that device. Because negotiation is on a
device-specific basis, the router can support a mix of SCSI device types on the
same SCSI bus.

Fibre Channel Port Configuration

By default, the configuration of the Fibre Channel ports is set to N_Port, which
minimizes conflicts when both the router and another Fibre Channel device, such
as a switch, are using Auto Sensing for Fibre Channel ports. Alternatively, the
configuration of the Fibre Channel ports can be set to Auto Sensing, which allows
the router to detect whether it is connected to an Arbitrated Loop or a Switched
Fabric.
Note:
Channel port speed must be manually set, such as for 2 Gb/s. If set incorrectly and the
router is plugged into a Loop or Fabric, the unit may receive framing errors because of
the incorrect Fibre Channel link speed.
Network Storage Router M2402 User Guide
By default, the Fibre Channel port speed is set to 1 Gb/s. Changes to the Fibre
Configuration Overview
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