Oracle Exadata Configuration Assistant (OECA) is an easy configuration tool for quickly generating recommended configuration scenarios for Exadata systems. It automatically recommends appropriate hardware and storage configurations based on user needs and load characteristics, simplifying the configuration process and ensuring optimal performance and scalability.
- Tools downloaded and ready to go
- 2. Configuring the Exadata X7-2 HC Octet Configuration with OECA
- 3. Use the OECA configuration to add HC storage nodes to the above configuration
- 4. Configuring the Exadata X10M-2 HC Eighth Configuration with OECA
- 5. Configure Exadata X10M-2 HC Quarter Configuration with OECA
Tools downloaded and ready to go
The official download address for the OECA tool:
- /database/technologies/
You need to log in to your Oracle account, then check the box to agree to the standard terms and click download:
The first thing you download is a download tool, for example, this is the package for my MAC environment:
- Oracle_SSN_DLM_11120313.dmg
Select the download path:
Successfully downloaded the OECA zip file:
Once unzipped, it can be found in the web folder and double-clicked to open it in your browser:
The initial effect of opening in a browser is as follows:
Because no valid configuration information has been entered at this point, the Rack Validity Status displays redRack Config is NOT VALID。
2. Configure Exadata X7-2 HC one-eighth configuration using OECA
Let's assume here that we want to help a customer look up the historical X7-2 HC 1/8th Rack machines:
A special mention of the performance metrics here is that if you look at the white paper for the X7-2, you'll see that here in IO throughput (Scan GB/s), the white paper gives 38GB/s.
This value is actually rounded up to 37.5 GB/s to be precise, but of course this difference can be ignored and is presented here just to say that OECA's value is more accurate.
In the 42U cabinet, the location of each hardware installation is also clearly visible:
3. Use the OECA configuration to add HC storage nodes to the above configuration
If the standard configurations are given corresponding values in the white paper, it's OK to check the white paper directly.
However, one of the characteristics of Exadata is its flexible scalability. For example, if the customer wants to add an X8 storage node to the above configuration.
What will become of the indicators? It's not as easy with a white paper, but OECA can quickly visualize the changes:
Here you can see an extra X8-2 1/8 storage node.
The values of each of the other indicators change accordingly, which is very intuitive:
And with a configuration done through OECA and determined to be valid, it's basically a no-brainer.
As an example, assuming that you are not aware of the architectural changes after X8M, you want to expand the capacity of X7 and plan to buy an X8M node as a matter of course, mistakes like this one can be avoided ahead of time in the OECA configuration.
4. Configuring the Exadata X10M-2 HC Eighth Configuration with OECA
There's really no difference in the configuration method, except that in the early days of X10M the one-eighth configuration wasn't available, now that it is, we can quickly verify to see if the one-eighth configuration is ready via OECA:
5. Configure Exadata X10M-2 HC Quarter Configuration with OECA
Again, the most popular 1/4 configurations are quickly familiarized under Configuration:
There's a reason why the X10M configuration is specifically brought up here, other than proficiency, and that is, do you see some differences?
In fact, as mentioned earlier, the X10M was not released in an early one-eighth configuration, and in an early whitepaper it was explicitly stated that it would be released in the future.
Now that the X10M is available in a 1/8 rack configuration, the careful observer has probably noticed that its compute nodes have changed from before:
Because of Exadata's past practice, a 1/8rack is typically only half the configuration of a 1/4rack, with the compute nodes having the same CPU model, just half the number.
But note that in X10M, the 1/8rack compute node has only one-sixth of the CPU cores of the 1/4rack, and although they are both AMD brands, the CPU models are not the same, and the CPU frequencies are even a bit higher instead, as detailed below:
So to visualize the difference, the common configuration of the X10M is configured using OECA.
In addition, through the OECA can not only configure the most common domestic Exadata, but also ZDLRA, ExaCC, these homologous products.