Tandberg Data MSERIES FC USER, FC420 User Manual
Tandberg Data FC420
Bridge Option User’s Guide
Introduction 3
Fibre Channel Overview ...................................................................... 3
Library Operation After FC420 Bridge Installation ............................... 3
Cabling the M2500 Library for Fibre Channel 4
One- and Two-Drive Library Cabling ................................................... 4
Cabling with Three or More Drives ...................................................... 5
Setting SCSI IDs 7
Configuring FC420 Firmware 8
Setting Up an Ethernet Connection ..................................................... 8
Verifying Current FC420 Firmware .................................................... 10
Setting Local Echo Mode................................................................... 10
Scanning the SCSI buses on the Library........................................... 10
Creating a Map File for the FC420 .................................................... 11
Making Other Configuration Changes ............................................... 11
Updating FC420 Firmware 12
Document T6423053-01, Ver. 1, Rel. 0, November 2002 1
Tandberg Data FC420 Bridge Option User’s Guide
Document T6423053-01, Ver. 1, Rel. 0
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FC420 Services Software Commands 13
FC420 Service Software Operation................................................... 13
Command Syntax .............................................................................. 14
List of Abbreviations .......................................................................... 14
Command Listing............................................................................... 14
2 6207947-04fN 13
Tandberg Data FC420 Bridge Option User’s Guide
Document T6423053-01, Ver. 1, Rel. 0
November 2002
Introduction 0
This document describes the configuration and operation of the FC420
Fibre Channel Bridge option installed in the M2500 library.
For FC420 installation steps, refer to the FC420 Fibre Channel Bridge
Quick Reference Guide (PN T6473054).
For a description of M-Series library operating procedures, see the
Tandberg Data M-Series Library User’s Guide (PN T6423045).
Fibre Channel
Overview
The M2500 library is controlled by a host computer via a SCSI
0
differential bus using the SCSI-2 medium changer command set. The
library’s architecture allows for easy conversion from the SCSI host
interface to a Fibre Channel host interface by installing the FC420
Bridge option.
Fibre Channel is a serial data transfer architecture for use with
computers and mass storage devices. Fibre Channel is rapidly
emerging to challenge SCSI as the interface of choice for host-tostorage applications.
Fibre Channel advantages include:
• Connection distances of up to 500 meters
• Up to 2 GB/sec data transfer rates with Autonegotiate
• Support for up to 126 devices on a loop
• Support for 24-bit addressing for over 16 million devices in
point-to-point mode or fabric, when using a Fibre Channel switch
or multiple Fibre Channel switches.
• Operating system independence
• Interconnect flexibility
Library Operation
After FC420 Bridge
Installation
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• Fibre Channel fabric switches provide full direct connectivity
between all ports on a network, which can increase the total
throughput of all devices on a network.
Once the FC420 Bridge SCSI to Fibre Channel option is installed and
tested, the library operates exactly as a library with a SCSI host
interface. User operation of the library via the graphical user interface
(GUI) panel is unchanged.
Introduction 3
Tandberg Data FC420 Bridge Option User’s Guide
Document T6423053-01, Ver. 1, Rel. 0
November 2002
Cabling the M2500 Library for Fibre Channel 0
The cabling configuration used for the M2500 library with the FC420
option depends on the following factors:
• Number of tape drives installed
•Tape drive type (SDLT or LTO)
• Number of FC420 Fibre bridges installed
• Data transfer rate of the storage area network (SAN)
One- and Two-Drive
Library Cabling
Figure 1 One-Drive
Cabling
M2500
Auxiliary
electronics
module
Slot for FC420
Slot for FC420
If the M2500 library has only one or two tape drives, the cabling is the
0
same regardless of drive type or SAN. One- or two-drive libraries only
require one FC420 Fibre bridge.
Figure 1
shows the cabling for a one-drive library.
FC420
SCSI
SCSI controller
Drive 1
SCSI
Terminator
Primary
electronics
module
Fibre
SAN
As shown in the figure, a SCSI daisy chain is established from one of
the SCSI ports on the FC420 to the SCSI controller and then to drive 0,
where the daisy chain is terminated. The SCSI controller is included in
the chain to pass SCSI commands to the robot.
The SCSI controller and drive 1 must be on the same SCSI bus because
the SCSI controller has termination disabled.
4 Cabling the M2500 Library for Fibre Channel
Figure 2 Two-drive
Cabling
M2500
Auxiliary
electronics
module
Slot for FC420
Tandberg Data FC420 Bridge Option User’s Guide
Document T6423053-01, Ver. 1, Rel. 0
Figure 2 shows typical cabling for a two-drive library.
SCSI
Drive 2 Drive 1
Te rm i n at o r
SCSI
SCSI
FC420
SCSI controller
Primary
electronics
module
November 2002
Fibre
Slot for FC420
Cabling with Three or
More Drives
SAN
In a two-drive library, the second drive (Drive 2) should be connected
to the available FC420 SCSI port, creating a second SCSI bus. This fully
utilizes the FC420 Fibre bridge and maximizes the communication
bandwidth available to each tape drive.
When cabling M2500 libraries with three or more tape drives, you
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need to know the type of tape drive installed in the library and the
data transfer rate of the SAN to determine the correct SCSI
configuration.
Note: As with the one- and two-drive configurations, all Fibre-to-
SCSI cabling configurations must include the SCSI controller
so that SCSI commands intended for the robot are
successfully communicated.
Cabling the M2500 Library for Fibre Channel 5
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SDLT/LTO Drive Cabling with a 1-GB SAN 0
For example, if you have SDLT or LTO drives and a 1 GB SAN,
Quantum recommends a ratio of one tape drive per FC420 SCSI port.
This means that three- and four-drive libraries would require a second
FC420 Fibre bridge, and five- and six-drive libraries would require
three FC420 bridges, as shown in Figure 3
Note: SDLT and LTO tape drives are sometimes referred to as
Superdrives.
Figure 3 One-Drive-PerFC420-Port Cabling
M2500
Drive 2 Drive 1
Auxiliary
electronics
module
FC420
FC420
SCSI
Drive 4 Drive 3
SCSI
Drive 6 Drive 5
SCSI
SCSI
SCSI
SCSI
FC420
SCSI controller
Terminator
.
Primary
electronics
module
Fibre
SCSI
Fibre
Fibre
SDLT/LTO Drive Cabling with a 2-GB SAN 0
If the M2500 library with SDLT or LTO drives is connected to a 2-GB
SAN, Tandberg Data recommends a maximum ratio of 2 tape drives
per FC420 SCSI port. This means that one FC420 Fibre bridge could
manage up to four tape drives, but a second FC420 Fibre bridge would
be required for libraries with five or six tape drives.
6 Cabling the M2500 Library for Fibre Channel
1-GB SAN
Figure 4 Two-Drives-PerFC420-Port Cabling
M2500
Tandberg Data FC420 Bridge Option User’s Guide
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November 2002
Figure 4 shows a six-drive library utilizing a two-drive per port
cabling scheme.
Note: To increase the bandwidth available to each tape drive,
install additional FC420 Fibre bridges and use the cabling
configuration shown in figure 3
SCSI
SCSI
Drive 2 Drive 1
SCSI
.
FC420
SCSI controller
Primary
electronics
module
Fibre
Auxiliary
electronics
module
Slot for FC420
FC420
Drive 4 Drive 3
SCSI
Drive 6 Drive 5
SCSI
Fibre
SCSI
SCSI
Terminator
2-GB SAN
Setting SCSI IDs 0
Table 1 SCSI ID Settings
Use the information in table 1
IDs) for the library.
Device SCSI ID Device SCSI ID
to set the SCSI device addressing (SCSI
SCSI Controller 0 Drive 3 4
Drive 01Drive 45
Drive 12Drive 56
Drive 2 3
Setting SCSI IDs 7
Tandberg Data FC420 Bridge Option User’s Guide
Document T6423053-01, Ver. 1, Rel. 0
November 2002
Configuring FC420 Firmware 0
Each FC420 Fibre bridge installed in the M2500 library must be
configured using the FC420 Bridge Services software. The key to
successfully configuring the FC420 Fibre bridge is to:
• Know exactly how the SCSI cabling in the library is configured
including:
• How many FC420 Fibre bridges are present in the library.
• How many SCSI buses are present in the library.
• How many SCSI devices are connected to each bus.
This was established in the previous section of this document.
• Use the FC420 Bridge Services software to create a Map file
identifying which SCSI devices are electrically connected to which
Fibre Channel ports on the FC420 board.
Setting Up an Ethernet
Connection
The major steps for configuring FC420 Fibre bridge firmware involve:
• Setting Up an Ethernet Connection
• Verifying Current FC420 Firmware on page 10
• Setting Local Echo Mode
• Scanning the SCSI buses on the Library
• Creating a Map File for the FC420
Note: These major steps must be repeated for each FC420 Fibre
on page 10
on page 10
on page 11
bridge in the library.
To set up an Ethernet connection between the FC420 Fibre bridge and a
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service PC or other stand-alone computer:
1 Establish a physical connection between the FC420 bridge and the
computer using a CAT 5E crossover cable. To do this:
a Make sure the computer and library are both turned off.
b Attach one end of the cable to the RJ-45 connector at the bottom
of the FC420 bracket.
2 Turn on the computer.
8 Configuring FC420 Firmware
c Attach the other end of the cable to the NIC port on the
computer.
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