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Blog Michael Schwalm Oracle Database Appliance: new ODA X3-2 architecture

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Oracle Database Appliance: new ODA X3-2 architecture

A few weeks ago, I posted an article about Oracle Database Appliance, focusing on ODA version 2.5.0.0.0. However, a new update of ODA, version 2.5.5.0.0, was released by Oracle on 5 March. This posting will focus on the new ODA release, which leads to a new hardware architecture.

 

So, what's new with this new ODA version? According to the Release Notes, ODA now supports the new X3-2 architecture which allows additional hardware and storage capabilities.

 

Physical interconnection

Remember, the previous ODA version was shipped in the form of two 2U nodes. Each one was hosting multiple storage devices, and the nodes were already linked to each other. The front was composed of disks and the host was accessible from the rear. The cluster interconnect was included inside the rack. Users just had to plug in power as well as network and start the rack.

With the X3-2 architecture, ODA still comes in a 4U form, but each node is now independant and 1U sized. You can access the host by the front side, and each one is attached to a 2U storage shelf. This means that the user has to plug in network and power, but the interconnect and the storage also has to be configured by the user. The connection becomes a little bit more difficult!

 

Evolution perspective

When I reviewed ODA last week, I pointed out a major drawback: the hardware limitation. The new architecture now is evolutive: the storage shelf shipped with ODA can be upgraded with a second 2U storage shelf to get more storage capabilities. Other hardware components are still limited, but have been strongly upgraded with X3-2.

 

Hardware updates

The hardware is clearly more powerful. Here are the new hardware specifications of ODA X3-2 for each node - in comparison to the old configuration:

Item Old configuration New configuration
CPU 2 x X5675 2 x E5-2690
Cores per CPU 6 8
Memory 96 GB 256 GB
SSD Disks for REDO Logs 4 x 73 GB 4 x 200 GB
SAS Disks for data files 20 x 600 GB 15k rpm 20 x 900 GB 10k rpm
SATA disks for operating system 2 x 500 GB 2 x 600 GB
Cluster interconnect 2 x 1 GbE fibre 2 x 10 GbE copper

 

We can see that Oracle has put more powerful components on its ODA: more CPU, more Memory, and more disk space to host more databases.

 

To conclude

ODA virtualization support is still limited to the local storage of the host (2x600GB SATA disks) - no update on this point. This ODA version does not provide new features. In fact, this new release of ODA is "just a boost" of the old ODA architecture, with twice more CPU power and four times more storage capabilities.

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Michael Schwalm is Consultant at dbi Services and has more than two years of experience in Oracle database administration. He has a broad knowledge in the realization of virtualization infrastructures such as vMware vSphere. He took his first steps in database administration as an integrator of a web applications on Unix, Oracle, and Websphere environments. Michael Schwalm is Oracle Certified Professional 11g. Prior to joining dbi services, Michael Schwalm was application administrator at SOGETI Est (F) on behalf of PSA Peugeot Citroen and responsible for the realization and managing of Unix environments and Oracle databases in the context of migration projects. Michael Schwalm holds a BTS diploma in Information System Management from Belfort (F) and a TSAR diploma in advanced network administration from Strasbourg (F). His branch-related experience covers Automotive, Software industry, Financial Services / Banking, etc.

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