Owner's Manual

30 iSCSI Cluster Setup for EqualLogic Storage Systems
NOTE: It is recommended to use two Gigabit Ethernet switches. In the event of a
switch failure in a single Ethernet switch environment, all hosts lose access to the
storage until the switch is physically replaced and the configuration restored. In
such a configuration, there must be multiple ports with link aggregation providing
the inter-switch, or trunk connection. From each of the control modules, it is
recommended to connect one Gigabit interface to one Ethernet switch, and to
connect the other two Gigabit interfaces to the other Ethernet switch.
Figure 5-1. Recommended Network Configuration
Figure 5-2 is an architectural overview of a sample Oracle
®
Real Application
Cluster (RAC) configuration with three Dell EqualLogic PS5000XV arrays.
The Dell EqualLogic PS5000XV storage arrays provide the physical storage
capacity for the RAC database. The group oracle-group includes three
Dell EqualLogic PS5000XV members: oracle-member01, oracle-member02,
and oracle-member03. When a member is initialized, it can be configured
with RAID 10, RAID 5, or RAID 50.
High-Bandwidth Inter-Switch Link
PowerConnect 6200 Gigabit
Ethernet Switches for iSCSI SAN
Rear-View of Dell EqualLogic PS5000XV
iSCSI Storage Array
Control Module 0
PowerSupply and
Cooling Module 0
Control Module 1
PowerSupply and
Cooling Module 1
iSCSI SAN
PowerConnect 6200 Gigabit
Ethernet Switches for iSCSI SAN