Siemens PSFR-CP41 User Manual
Fibre Channel to SCSI Router PSFR-CP41
Installing, Starting Up and Maintaining
Edition April 1999
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Copyright and Trademarks
Copyright © Siemens AG 1999.
All r ights reserved.
Delivery subjec t to availability; r ight of technical modifications reserved.
All hardware and software names used are trademarks of their respective manufacturers.
This manual is printed
on paper treated with
chlorine-free bleach.
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 – Tapedrives
Changer Devices – Tape and Magneto-Optical Libraries
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Features Introducing the PSFR-CP41
Front panel of the PSFR-CP41
SCSI
Serial
FibreChannel
Power Entry Module
I
0
Power
Fault
LEDs 10 Base-T
Ethernet
SCSI
Ethernet
FC
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
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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
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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
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Introducing the PSFR-CP41 PSFR-CP41 Benefits
PSFR-CP41 Benefits
Point-to-Point
Single initiator to single target
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PSFR-CP41 Benefits Introducing the PSFR-CP41
Single Initiator
Single initiator to multiple targets
Multi-Initiator
Multiple initiators to single or multiple targets
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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 cablelength 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, robusterror 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 allows multiple serversto share tape drives,tape libraries,
disk drives and disk arrays.
Centralization
The PSFR-CP41 enables existing storage to be movedto 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.
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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’sability to encapsulateSCSI protocolpacketsto allow a host 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 PSFRCP41 router, any host on the Fibre Channel loop can access the tape driveand
library on the SCSI bus.
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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
fromhosts onthe FibreChannel network to target deviceson the SCSI 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
Ina Fibre Channel loop,the PSFR-CP41isidentified by a single Arbitrated Loop
PhysicalAddress (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 PSFRCP41 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 “Understanding the PSFR-CP41 Configuration” for more information about address
modes and their configurations.
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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 information, and places the packet in buffer memory.
3. The PSFR-CP41’sprocessor 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 or write 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.
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Introducing the PSFR-CP41 Processing Fibre Channel Information
Processing Fibre Ch annel 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.
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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 or rackinstallation instructions, andconnecting
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
i
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 shippingcontainer.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 representative 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.
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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
4
2 3
1 = PSFR-CP41
2 = Left and right mounting rails
3=Sliderails
4 = Mounting screws and cage nuts
Required tools
Phillips screwdriver
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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
i
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.
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Mounting the PSFR-CP41 in a Rack Installing the PSFR-CP41
5. Locate the front of the mounting
brackets.
6. Attach the brackets to the front
mountingrails,using twoscrewson
each side. Be sure to use only the
top and bottom holes in each
bracket. (The middle holes will be
usedto attach the front coverpanel
after the unit is installed.) Tighten
the screws securely.
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.
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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”.
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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.
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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.
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Mounting the PSFR-CP41 in a Rack Installing the PSFR-CP41
Interfaces and Connections
There are four different types of physical interfaces to the PSFR-CP41:
Fibre Channel
SCSI
RS-232 (Serial port)
Ethernet
The RS-232 and Ethernet ports are used primarily for PSFR-CP41 configurationand management. MIB information foreach interfaceis discussed later in
this chapter.
Port locations
S erial Port
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0
Ethernet
Port
SCSI Port
Fibre Cha nnel
Port
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Installing the PSFR-CP41 Mounting the PSFR-CP41 in a Rack
Fibre Channel Connection
Before connecting the PSFR-CP41 to other Fibre Channel devices, it is
important to understand the configuration requirements of the environment to
which it will be connected. Failureto correctly configure a Fibre Channel device
may impair the operation of the storage area network to which it is attached.
Typicalinstallations will havethe PSFR-CP41 connected to either an Arbitrated
Loop or Switched Fabric environment. For an arbitrated loop, the unit can be
directly attached to the Fibre Channel host bus adapter or target device, in a
point to point fashion. Arbitrated loops also allow for the use of Fibre Channel
hubs, to which the unit can be directly attached. In Fibre Channel switched
environments, the switch is directly attached to the PSFR-CP41.
Both switches and hubs may allow for individual ports to be configured for
differentmedia types. The PSFR-CP41 must be connected to the hub or switch
port with the appropriate cabling for the media type in use on both the PSFRCP41 and the port to which it is connected.
The PSFR-CP41 supports various Fibre Channel media types through the use
ofan internalGigabaud Link Module (GLM). Thismodule isfactory installed and
may be selected when ordering the unit.
Available media types include:
Multi-Mode Fiber Support - 1.0625 Gbaud Dual SC connectors
Single-Mode Fiber Support - 1.0625 Gbaud Dual SC connectors
To connect the PSFR-CP41 to the Fibre Channel Storage Area Network:
1. Remove the protective covers from the PSFR-CP41’s Fibre Channel
connectors.
2. With the PSFR-CP41 powered off, connect the PSFR-CP41 into your Fibre
Channel environment using the appropriate cabling. The connectors on the
PSFR-CP41 are keyed.Be sure to insert the cable connectors in the proper
orientation.
You may need to use an adapter to match the type of Fibre Channel
i
cabling and connector used by the router. See Appendix A for cable
specifications.
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Mounting the PSFR-CP41 in a Rack Installing the PSFR-CP41
S
SCS
Fig. “Fibre Channel connection”
shows the Fibre Channel port on the
back of the PSFR-CP41.
Fibre Channel connection
SCSI Connection
The PSFR-CP41 supports Fast/Ultra Wide SCSI. The PSFR-CP41 is factory
configured to support Differential SCSI bus. Two68-pin D-shell connectors are
located on the rear panel of the unit, allowing the unit to be attached in the
middle or at the end of a SCSI bus. If the PSFR-CP41 is located at one end of
the SCSI bus, an external terminator should be installed. A terminator is
provided with the PSFR-CP41.
CS I
DIFF
Differential
Isupportis indicated bythis symbolon the
rear of the 6100.
The PSFR-CP41 supplies termination power (TERMPWR) on the SCSI bus. A
self-resetting fuse is used that will reset after the fault is cleared.
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Installing the PSFR-CP41 Mounting the PSFR-CP41 in a Rack
To connect the PSFR-CP41 to the SCSI bus:
1. Power off your SCSI devices.
2. Connect a SCSI cable to one of the SCSI connectors on the back of the
router. If necessary, use a narrow-to-wide adapter.
3. Connect the other end of the SCSI cable to the next SCSI device on the bus.
4. If the PSFR-CP41 is at the end of the SCSI bus, place the terminator
provided with the router on the PSFR-CP41’s other SCSI connector. If the
router is not at the end of the bus, attach a second SCSI cable to the other
SCSI connector. Use a narrow-to-wide adapter, if necessary. Connect this
cable to the next device on the bus.
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0
SCSI Connectors
PSFR-CP41 SCSI connection
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Mounting the PSFR-CP41 in a Rack Installing the PSFR-CP41
5. Make sure the bus is terminated
correctly. The devices at each end
of the bus must be terminated.
SCSI terminator
6. Power on your SCSI devices.
7. After all the SCSI devices havecompleted their individual POSTs, power on
the PSFR-CP41.
Ethernet Connection
10BaseT Ethernet connectivity is used to provide enhanced management and
configuration capabilities. The RJ-45 connector on the unit can be directly
connected to a standard 10BaseT Ethernet network.
You mustfirst set the network address via theserial port to use the configuration
capabilitiesof the Ethernetport.Referto Chapter “Configuringthe PSFR-CP41”
for details on setting the network address.
Ethernet capabilities include Telnet and HTTP Interface (Web Browser) for
configuration, FTP and TFTP for firmware upgrades, and SNMP for configuration and management.
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