HP StorageWorks 2/16V HP StorageWorks Fabric OS 5.3.x administrator guide (569 - Page 225

A metaSAN with interfabric links, fabric 2, Target, Fibre, Channel, switch

Page 225 highlights

Figure 10 shows a metaSAN consisting of three edge fabrics connected through a 4/256 SAN Director containing an B-Series MP Router blade with interfabric links. Figure 10 A metaSAN with interfabric links Host Target Target Edge fabric 1 E_Port Edge fabric 2 E_Port Edge fabric 3 E_Port Fibre IFL Channel IFL switch EX_Ports Long Distance IFL Fibre Channel switch 4/256 SAN Director with B-Series MP Router blade 25313a • Edge Fabric A Fibre Channel fabric with targets and initiators connected through the supported platforms via an EX_Port or VEX_Port. • Backbone Fabric A backbone fabric is an intermediate network that connects two or more edge fabrics. A backbone fabric consists of at least one 400 MP Router, 4/256 SAN Director with a B-Series MP Router blade, or MP Router and possibly a number of Fabric OS-based Fibre Channel switches. It also enables hosts and targets in one edge fabric to communicate with devices in the other edge fabrics (see to Figure 11). A backbone fabric also enables hosts and targets in one edge fabric to communicate with devices in other edge or backbone fabrics. NOTE: While the 400 MP Router and 4/256 SAN Director with a B-Series MP Router blade facilitate communication between devices in edge fabrics with those in a backbone fabric, this is not true of the MP Router. • Fabric ID (FID) Every EX_Port and VEX_Port uses the fabric ID (FID) to identify the fabric at the opposite end of the IFL. Configure all of the EX_Ports and VEX_Ports attached to the same edge fabric with the same FID. The FID for every edge fabric must be unique from each backbone fabric's perspective. Configure the FID for all of the EX_Ports and VEX_Ports from a backbone fabric to uniquely reference each of the attached edge fabrics. When two different backbones are connected to the same edge fabric, the backbone fabric IDs must be different but the edge fabric ID must be the same. Configuring the same backbone fabric ID for two backbones that are connected to the same edge is invalid. In this configuration, a RASLog message displays a warning about fabric ID overlap. NOTE: Backbone fabrics which share connections to the same edge fabrics must have unique backbone fabric IDs. Fabric OS 5.3.0 administrator guide 227

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Fabric OS 5.3.0 administrator guide
227
Figure 10
shows a metaSAN consisting of three edge fabrics connected through a 4/256 SAN Director
containing an B-Series MP Router blade with interfabric links.
Figure 10
A metaSAN with interfabric links
Edge Fabric
A Fibre Channel fabric with targets and initiators connected through the supported platforms via an
EX_Port or VEX_Port.
Backbone Fabric
A backbone fabric is an intermediate network that connects two or more edge fabrics. A backbone
fabric consists of at least one 400 MP Router, 4/256 SAN Director with a B-Series MP Router blade, or
MP Router and possibly a number of Fabric OS-based Fibre Channel switches. It also enables hosts and
targets in one edge fabric to communicate with devices in the other edge fabrics (see to
Figure 11
). A
backbone fabric also enables hosts and targets in one edge fabric to communicate with devices in
other edge or backbone fabrics.
NOTE:
While the 400 MP Router and 4/256 SAN Director with a B-Series MP Router blade
facilitate communication between devices in edge fabrics with those in a backbone fabric, this is
not true of the MP Router.
Fabric ID (FID)
Every EX_Port and VEX_Port uses the fabric ID (FID) to identify the fabric at the opposite end of the IFL.
Configure all of the EX_Ports and VEX_Ports attached to the same edge fabric with the same FID. The
FID for every edge fabric must be unique from each backbone fabric's perspective. Configure the FID
for all of the EX_Ports and VEX_Ports from a backbone fabric to uniquely reference each of the attached
edge fabrics.
When two different backbones are connected to the same edge fabric, the backbone fabric IDs must
be different but the edge fabric ID must be the same. Configuring the same backbone fabric ID for two
backbones that are connected to the same edge is invalid. In this configuration, a RASLog message
displays a warning about fabric ID overlap.
NOTE:
Backbone fabrics which share connections to the same edge fabrics must have unique
backbone fabric IDs.
Edge
fabric 2
Host
Target
Target
Edge
fabric 1
Edge
fabric 3
Fibre
Channel
switch
Fibre
Channel
switch
E_Port
E_Port
E_Port
EX_Ports
IFL
IFL
Long Distance IFL
4/256 SAN Director with
B-Series MP Router blade
25313a