User`s manual
Table Of Contents
- Preface
- General Description
- Installation
- Introduction
- Unpack
- Place or Mount the Equipment
- Apply the IEC Class 1 Laser Information Label (If the installation is in Europe)
- Install GBICs
- Connect to AC Power
- Switch Logic Power Good LED
- Check the Power-On-Self-Test (POST) Results
- Cable Fibre Channel Devices to the Switch
- Configure the Chassis
- Configure the Ports
- Zoning
- Rack and Shelf Administration
- Operating the Switch
- Diagnostics/Troubleshooting
- Removal/Replacement Procedures
- Multi-Chassis Fabrics
- Reference Information
- QLogic Customer Support
- Index
Preliminary
Multistage Topology
SANbox-8 Fibre Channel Switch
Installer’s/User’s Manual 59008-03 Rev. A Multi-Chassis Fabrics 5-19
Multistage Bandwidth
Multistage topology has the best bandwidth. All T_Ports from each IO/T chassis
connect to all other IO/T chassis in the same number of chassis hops (three) no
matter how large the fabric is. Thus the useful interconnection bandwidth from
each IO/T chassis to any other IO/T chassis increases by 100MBs per T_Port. It is
possible in Multistage topology to devote half of the chassis bandwidth to T_Ports
thus providing as much as 400 MBytes per second bandwidth between any two IO/
T chassis.
Multistage Physical Distance Between Chassis
You may locate the CC chassis in the center of a circle with a radius of the
maximum cable length allowed by the selected GBICs and interconnection media.
Multistage Zoning
Sanbox Switch chassis support fabric-wide zones for all zone types. Broadcast
zones and Name Server zones require no special consideration in a Multistage
fabric. That is, you may assign these zones on by port or by device. T_Ports are not
zoned.
Hard Zones, however, require zoned T_Port interconnections between chassis
which contain ports in the same Hard Zone. That is, if a particular Hard Zone is
distributed across chassis boundaries, each piece of that Hard Zone and its inter-
connecting T_Ports must be assigned to the same Hard Zone number. This makes
interconnections between pieces of the same Hard Zone much like the interconnec-
tion of chassis.
MKII Compatibility
SANbox switch fabrics support MKII chassis in Multistage topologies. The MKII
switches should be used only as IO/T chassis, while the SANbox switches can be
IO/T or cross-connect chassis. All chassis in a SANbox/MKII Multistage fabric
support only one active T_Port between any two chassis, though more may be
connected. Hard zoning and Name Server zoning by WWN name are not
supported in SANbox/MKII fabrics.
NOTE:
Also, remember that mixing of topologies is not allowed. If the fabric topology
is Multistage, then the interconnection of the Hard Zones must also be accom-
plished in Multistage topology.