Siemens PSFR-CP41 How to use

Edition April 1999
Fibre Channel to SCSI Router PSFR-CP41
Installing, Starting Up and Maintaining

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Copyright and Trademarks
Copyright © Siemens AG 1999.
All rights reserved.
Delivery subject to availability; right of technical modifications reserved.
All hardware and software names used are trademarks of their respective manufacturers.

U42093-J-Z716-1-74 Operating Manual
Introducing the PSFR-CP41
The PSFR-CP41 provides connectivity between a Fibre Channel Switched
Fabric (FC-SW) or Arbitrated Loop (FC-AL) and one Fast/Wide/Ultra SCSI bus.
Supported devices include:
 Initiator Devices – Fibre Channel and SCSI hosts
 Sequential Access Devices – Tape drives
 Changer Devices – Tape and Magneto-Optical Libraries

Operating Manual U42093-J-Z716-1-74
Features Introducing the PSFR-CP41
Front panel of the PSFR-CP41
Back panel of the PSFR-CP41
Features
Fibre Channel Features
– Fibre Channel initiator and target modes
– Single 1.0625 Gbps port
– Fibre Channel Arbitrated Loop and Switched Fabric topologies
– Private Loop Direct Attach (PLDA) profile compliant
– Class 3 connection with SCSI-FCP protocol
– Optical GLM
I
0
Power
Fault
LEDs 10 Base-T
Ethernet Serial
SCSI
Ethernet
FC
FibreChannel
Power Entry Module SCSI

U42093-J-Z716-1-74 Operating Manual
Introducing the PSFR-CP41 Features
SCSI Bus Features
– SCSI initiator and target modes
– Single auto-negotiating SCSI bus (Narrow, Wide, Fast, Ultra)
– Ultra Wide SCSI for data transfer up to 40 MBps
– Connection for up to 15 devices
– Simultaneous commands, tagged command queuing and
disconnect/reconnect
– Middle of bus configuration with active, external termination
– SCSI-2 and SCSI-3 protocols
– 68-pin D shell, P type connectors
– Differential
– Disk, tape, optical and changer devices
– SCC, Indexed and Automatic addressing modes
Configuration Features
– Serial RJ-11 connector for terminal access
– Ethernet RJ-45 connector for FTP, Telnet and Web browser access
– Easy field-upgradable firmware
Management Features
– Out-of-band Ethernet TCP/IP
– SNMP with public and private MIB support

Operating Manual U42093-J-Z716-1-74
Specifications Introducing the PSFR-CP41
Specifications
Physical Specifications
– Internal power supply with power switch and detachable power cord
– Fibre Channel activity LED
– SCSI activity LED
– Ethernet activity LED
– Power LED
– Failure LED
– Airflow with internal fan
– Rack mount or desktop enclosure
Physical Dimensions
– Width 43.18cm (17.00 inches)
– Depth 22.82cm (8.98 inches)
– Height 4.31cm (1.70 inches, 1U)
– Weight 3.18 kg (7 lbs)
Operating Environment
–5to40°C
– 5 to 80% Relative Humidity (non-condensing)
Non-operating Environment
– -40 to +55 °C
– 0 to 92% Relative Humidity (non-condensing)
Power
– 100 - 240 VAC, Auto Sensing
– 50/60 Hz, 1.0 Amps

U42093-J-Z716-1-74 Operating Manual
Introducing the PSFR-CP41 PSFR-CP41 Benefits
PSFR-CP41 Benefits
Point-to-Point
Single initiator to single target

Operating Manual U42093-J-Z716-1-74
PSFR-CP41 Benefits Introducing the PSFR-CP41
Single Initiator
Single initiator to multiple targets
Multi-Initiator
Multiple initiators to single or multiple targets

U42093-J-Z716-1-74 Operating Manual
Introducing the PSFR-CP41 PSFR-CP41 Benefits
Availability
With two units, dual loop attachment provides redundancy and no single
point of failure.
Connectivity
SCSI devices may be attached to Fibre Channel storage networks to share
data and increase address space.
Distance
SCSI cable length from hosts to devices is increased from 25m to 10,000m,
facilitating remote or disaster tolerant sites.
Performance
100 Mbytes/sec Fibre Channel (200 Mbytes/sec bi-directional) offers
increased bandwidth when distributing data across multiple SCSI devices.
Reliability
Low error rates, robust error recovery and flow control provide an enterprise
with reliable data delivery.
Scalability
Point-to-point links can be expanded to multi-initiator links supporting inter-
connected servers, tape drives, tape libraries, disk drives and disk arrays.
Flexibility
The PSFR-CP41 allows Fibre Channel initiators to communicate with SCSI
targets, as well as SCSI initiators to communicate with Fibre Channel
targets, simultaneously.
Consolidation
The PSFR-CP41 allowsmultiple servers to share tape drives, tape libraries,
disk drives and disk arrays.
Centralization
The PSFR-CP41 enables existing storage to be moved to a central location
to simplify management and maintenance, and to improve security.
Lower TCO
Improving storage management, maintenance and security can lower Total
Cost of Ownership (TCO) for enterprise storage.

Operating Manual U42093-J-Z716-1-74
How the PSFR-CP41 Works Introducing the PSFR-CP41
How the PSFR-CP41 Works
The PSFR-CP41 acts as a pass-though device that translates Fibre Channel
FCP to and from a SCSI bus so devices on these two types of media can
communicate with each other. It attaches to either a Fibre Channel or SCSI
host, and transfers the command, data, and status information to SCSI or Fibre
Channel targets. The host passes packets to SCSI or Fibre Channel targets as
if the PSFR-CP41 were just another device along the path.
The PSFR-CP41 provides connections for a single SCSI bus and a Fibre
Channel Arbitrated Loop or Switched Fabric. It takes advantage of Fibre
Channel’s ability to encapsulate SCSI protocol packets to allow ahost with a FC
or SCSI adapter to access SCSI or FC peripheral devices transparently over a
FC connection.
Fibre Channel-to-SCSI configuration
The figure shows a Fibre Channel-to-SCSI configuration. Through the PSFR-
CP41 router, any host on the Fibre Channel loop can access thetape drive and
library on the SCSI bus.

U42093-J-Z716-1-74 Operating Manual
Introducing the PSFR-CP41Operating as Both a SCSI and Fibre Channel D
e
Operating as Both a SCSI and Fibre Channel
Device
The router is both a SCSI and Fibre Channel device operating on a SCSI bus
and Fibre Channel network simultaneously.
The SCSI Side
On the SCSI bus, the PSFR-CP41 acts as a SCSI initiator passing requests
from hosts onthe FibreChannel network totarget devices on theSCSI bus. The
PSFR-CP41 uses a single SCSI ID. The default ID is 7 and can be changed
when configuring the PSFR-CP41.
The Fibre Channel Side
InaFibreChannelloop,thePSFR-CP41isidentifiedbyasingleArbitratedLoop
Physical Address (AL_PA) or a fabric assigned Source ID. Once the address is
acquired, any host on the Fibre Channel loop can access the devices on the
SCSI bus transparently over a FC connection.
Mapping Devices
To allow Fibre Channel and SCSI devices to address each other, the PSFR-
CP41 creates a table that maps device identifiers between Fibre Channel and
SCSI. During PSFR-CP41 configuration, you can choose the mapping method
and, in certain cases, customize the device mappings. See Chapter “Under-
standing the PSFR-CP41 Configuration” for more information about address
modes and their configurations.

Operating Manual U42093-J-Z716-1-74
Processing SCSI Information Introducing the PSFR-CP41
Processing SCSI Information
The following describes how the router processes SCSI information:
1. A FC host issues a command. The FC host encapsulates the command in
the FCP protocol and sends the packet to the PSFR-CP41.
2. The FC port in the PSFR-CP41 receives the packet, interprets the FC infor-
mation, and places the packet in buffer memory.
3. The PSFR-CP41’s processor interprets the information and programs the
SCSI controller to process the transaction.
4. The SCSI controller sends the command to the SCSI device (target).
Information processing
5. The target interprets the command and prepares to either read orwrite data.
6. Data flows between the host and target through buffer memory.
7. Response information flows from the SCSI target back to the FC host.

U42093-J-Z716-1-74 Operating Manual
Introducing the PSFR-CP41 Processing Fibre Channel Information
Processing Fibre Channel Information
The PSFR-CP41 processes information from the SCSI bus host by requesting
operations of targets on a Fibre Channel Storage Area Network (SAN). The
information is processed using the same method as described in the previous
section, except it begins with the SCSI host bus issuing commands and the
information passing through the PSFR-CP41 to the FC SAN.

U42093-J-Z716-1-74 Operating Manual
Installing the PSFR-CP41
This chapter describes how to setup and install the PSFR-CP41. This includes
unpacking the PSFR-CP41 for the first time, factors to consider when installing
the PSFR-CP41, either desktop orrack installation instructions, and connecting
to different types of devices. Read this chapter carefully and completely before
working with the PSFR-CP41.
A number of factors need to be considered in planning the installation of the
PSFR-CP41. These factors include the location of the unit, the use of the unit,
and the type of devices to which the unit will be attached.
Location
The PSFR-CP41 Router can be placed on a desktop or mounted in a standard
19-inch rack depending on the specific requirements of the installation. The
operatingenvironment should meet the requirements found in Chapter 1. If you
plan to use the router on a tabletop, attach the stick-on feet to the bottom of the
router to protect the surface.
The PSFR-CP41 contains a cooling fan mounted in the rear of the
enclosure and intake vents on the front of the enclosure. The rear fan
vent and the front intake vents should remain clear of obstructions to
ensure proper airflow.
Unpacking the Box
1. Remove all items from the shipping container. Check each one for damage.
Keep the PSFR-CP41 in the protective bag until you are ready to install it.
2. Refer to the packing slip or contents list to make sure you received all the
equipment you ordered. If an item is missing, contact your sales represen-
tative immediately.
3. Select a location that ensures the front intake vents and rear fan are clear of
obstructions so air flows freely through the router.
4. Do not connect any devices or cables to the PSFR-CP41 until the device is
secured in a rack or placed securely on a flat, level surface.
i

Operating Manual U42093-J-Z716-1-74
Mounting the PSFR-CP41 in a Rack Installing the PSFR-CP41
Mounting the PSFR-CP41 in a Rack
Follow the directions below to mount the PSFR-CP41 in a standard rack.
Materials needed
1 = PSFR-CP41
2 = Left and right mounting rails
3=Sliderails
4 = Mounting screws and cage nuts
Required tools
 Phillips screwdriver
1
2 3
4

U42093-J-Z716-1-74 Operating Manual
Installing the PSFR-CP41 Mounting the PSFR-CP41 in a Rack
Installation Procedure
Place the PSFR-CP41 so the rear fan vent and the front intake vents
remain clear of obstructions to ensure proper airflow.
1. Remove the router from the protective bag.
2. Determine where the PSFR-CP41 will be mounted.
3. Remove any blanking panels and other equipment from the chosen rack
location.
4. Install the cage nuts on the vertical mounting rails in the rear of the rack
cabinet.
i

Operating Manual U42093-J-Z716-1-74
Mounting the PSFR-CP41 in a Rack Installing the PSFR-CP41
To reduce injury or equipment damage, the mounting brackets must be
level. If the brackets are not level, the PSFR-CP41 cannot be installed
correctly.
5. Locate the front of the mounting
brackets.
6. Attach the brackets to the front
mountingrails,usingtwoscrewson
each side. Be sure to use only the
top and bottom holes in each
bracket. (The middle holes will be
used to attach the front cover panel
after the unit is installed.) Tighten
the screws securely.
!

U42093-J-Z716-1-74 Operating Manual
Installing the PSFR-CP41 Mounting the PSFR-CP41 in a Rack
If you are mounting the PSFR-CP41 in the front of the rack with the connectors
facing the back or in the back of the rack with the connectors facing the front,
attach the mounting brackets as shown in Fig. “Mounting at front of rack”.
Mounting at front of rack
If you are mounting the PSFR-CP41 in the front of the rack with the connectors
facing the front or in the back of the rack with the connectors facing the back,
attach the ears as shown in Fig. “Mounting at back of rack”.

Operating Manual U42093-J-Z716-1-74
Mounting the PSFR-CP41 in a Rack Installing the PSFR-CP41
Mounting at back of rack
7. Attach each bracket to a rear
mounting rail, using one screw on
each side. Tighten the screws
securely.

U42093-J-Z716-1-74 Operating Manual
Installing the PSFR-CP41 Mounting the PSFR-CP41 in a Rack
8. Attach the slide rails to the PSFR-CP41 using two screws on each side.
Slide the unit back into the rack and push in on the front tabs until the rails
snap into place.
Once the PSFR-CP41 is installed, you are ready to connect it to the other
system components.