| Date |
2010-02-25 09:44:31 |
| Component |
RAC |
| Title |
Bonding options for Real Application Clusters |
| Version |
10.2.0 > |
| Problem |
We often see questions what to do wtih bonding and the load balacining options. Selecting the correct option is very important to garantee the availability if Real Application Cluster is selected for High Availability. |
| Solution |
Oracle advise is to keep the bonding simple, whereby they report bonding can be done in an active-backup (mode=1) when multiple switches are involved in the infrastructure.
During tests for several customers we found out that adaptive load balancing (mode=5) is also working properly, outgoing traffic is performed using load balacing across the available interfaces and incoming traffice is receieved on the current slave.
In stead of listing all the bonding modes, Red Hat has a very good overview of the options for bonding. This link will redirect to the article from Red Hat explaining the differences between the bonding options.
To set the bonding mode you can define the name or number. In general this setting is added to /etc/modprof.conf
alias bond0 bonding
options bond0 mode=balance-tlb miimon=100
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