Connecting Cascaded Appliances Through Switches And Fabrics - HP Open View Installation And Maintenance Manual

Connecting the Appliance to Hosts and Storage Arrays

Connecting cascaded appliances through switches and fabrics

Figure 22
example, assume the following:
Creating a cascaded environment requires the following:
90
shows two cascaded appliances connected through switches and fabrics. In this
CASA A on site A has peer nodes 0 and 1 (CAP0, CAP1). Five targets (T0, T1, T2, T3,
and T4) and two initiators (I1 and I4) from each node connect to the Fibre Channel
switches as described on page 91.
CASA B on site B has peer nodes 0 and 1 (CBP0, CBP1). Five targets (T0, T1, T2, T3,
and T4) and two initiators (I1 and I4) from each node connect to the Fibre Channel
switches as described on page 92.
T5 and I5 on each node create the cascaded configuration between CASA A and CASA B.
Host 1 (with HBA 1 and 2) connects to site A (H1_1, H1_2).
Host 2 (with HBA 1 and 2) connects to site B (H2_1, H2_2).
Storage 1 connects to site A. The array has two dual–port controllers. Controller A has
ports 1 and 2 (S1A1, S1A2), and controller B has ports 1 and 2 (S1B1, S1B2).
Storage 2 connects to Site B. The array has two dual–port controllers. Controller A has
ports 1and 2 (S2A1, S2A2), and controller B has ports 1 and 2 (S2B1, S2B2).
CASA A connects to four switches. CASW1 and CASW3 connect the appliance node
targets to host 1. CASW2 and CASW4 connect the appliance node initiators to storage 1.
CASA B connects to four switches. CBSW1 and CBSW3 connect the appliance node
targets to host 2. CBSW2 and CBSW4 connect the appliance node initiators to storage 2.
Two fabrics on each site, for a total of four fabrics. Site A has Fabric A (CAM_A) and
Fabric B (CAM_B). Site B has Fabric C (CAM_C) and Fabric D (CAM_D).
An extended fabric (called an E port) that connects the two sites. For example, you can
designate port 15 on each switch as the E port.
You create the extended fabric by connecting a switch from each site, enabling the
appliance to share configuration data. The fabrics have the following connections:
— CAM_A connects CASW1 (Site A) to CBSW2 (Site B).
— CAM_B connects CASW2 (Site A) to CBSW1 (Site B).
— CAM_C connects CASW3 (Site A) to CBSW4 (Site B).
— CAM_D connects CASW4 (Site A) to CBSW3 (Site B).
Ten zones for each fabric.
Two ports for each zone.
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