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FusionCube DB 3.1 Database Best Practice 03 (Oracle RAC 11g R2)

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Configuring Oracle RAC on Extended Distance Clusters

Configuring Oracle RAC on Extended Distance Clusters

Three failure groups are required for the OCR disk group to configure Oracle RAC on extended distance clusters in active-active data centers. However, the third failure group cannot be placed on either storage site. If either storage site has two failure groups, the cluster cannot operate properly when the storage site is faulty because the number of voting disks is less than half of the total number of voting disks. To avoid this problem, configure Oracle RAC on extended distance clusters as follows:

Configure four chassis of E9000 servers in each of two cabinets to implement computing and storage functions. In another cabinet, configure one RH2288H V3 server as the storage arbitration node and one NAS as the Oracle RAC arbitration site. Figure A-3 and Figure A-4 show the networking.

Figure 7-3 Networking
Figure 7-4 Networking
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Updated: 2018-12-26

Document ID: EDOC1100035759

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