Databases Reference
In-Depth Information
Version : 11.2.2.2.2.110311
Image activation date : 2011-05-04 12:41:40 -0400
Imaging mode : patch
Imaging status : success
Version : 11.2.2.3.2.110520
Image activation date : 2011-06-25 15:21:42 -0400
Imaging mode : patch
Imaging status : success
Version : 11.2.2.3.5.110815
Image activation date : 2011-08-29 19:06:38 -0400
Imaging mode : patch
Imaging status : success
Version : 11.2.2.4.2.111221
Image activation date : 2012-02-11 23:46:46 -0500
Imaging mode : patch
Imaging status : success
[root@cm01dbm01 ~]#
Exadatacompute servers have three required and one optional network:
•
The NET0/Admin network allows for SSH connectivity to the server. It uses the eth0 interface,
which is connected to the embedded Cisco switch.
•
The NET1, NET2, NET1-2/Client Access provides access to the Oracle RAC VIP address and
SCAN addresses. It uses interfaces eth1 and eth2, which are typically bonded. These interfaces
are connected to your data center network.
•
The IB network connects two ports on the compute servers to both of the InfiniBand leaf
switches in the rack. All storage server communication and Oracle RAC interconnect traffic
uses this network.
•
An optional “additional” network, NET3, which is built on eth3, is also provided. This is often
used for backups and/or other external traffic.
■
Note
For additional networking details of the Exadata compute servers, refer to Chapter 10.
How It Works
Exadata compute servers are designed to run Oracle 11gR2 databases. Oracle 11gR2 Grid Infrastructure and RDBMS
software is installed on these servers, and aside from the InfiniBand-aware communications protocols that enable
the compute servers to send and receive I/O requests to and from the storage cells, the architecture and operating
environment of the compute servers is similar to non-Exadata Linux environments running Oracle 11gR2. The
collection of compute servers in an Exadata Database Machine makes up the compute grid.
All database storage on Exadata is done with Oracle ASM. Companies typically run Oracle Real Application
Clusters (RAC) on Exadata to achieve high availability and maximize the aggregate processor and memory across the
compute grid.
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