What is OCF?

Open CAS Framwework (OCF) is high performance block storage caching meta-library written in C. It’s entirely platform and system independent, accessing system API through user provided environment wrappers layer. OCF tightly integrates with the rest of software stack, providing flawless, high performance, low latency caching utility.

What’s in it for me?

For short - performance. OCF enables easy block cache deployment for any performance sensitive application that works with huge data sets stored on persistent memory. It was primarily designed to cache data from HDD drives on SSDs, but it also can be used for caching data from QLC SSD on TLC SSD, Optane drives, RAM memory, or any combination of above including all kinds of multilevel configurations.

Who already uses OCF?

Open CAS Framework is heart of two established caching products:

  • Intel ® Cache Acceleration Software for Linux
  • Intel ® Cache Acceleration Software for QEMU

We are also default caching solution for Storage Performance Development Kit (starting from version 19.01).

Who contributes to OCF?

Our open source community is still forming and we are very positive about that. OCF is mostly developed and maintained by Intel. We are the team who developed OCF (as a part of Cache Acceleration Software) for many years. Now we are very extited about undergoing transition to truely open source project. We are open for contributions of any kind. If you feel like helping us make OCF better, take a look at Contributing page.

How do I get it?

We are fully open source. Visit our GitHub page.