Improve Application Performance with Open Cache Acceleration Software (Open CAS)

Today's data centers are held back by storage I/O that cannot keep up with ever-increasing demand, preventing systems from reaching their full performance potential. Traditional solutions, such as increasing storage, servers, or memory, add huge expense and complexity.

Open Cache Acceleration Software (Open CAS), combined with high-performance Solid State Drives (SSDs), increases data center performance via intelligent caching rather than extreme spending. Open CAS interoperates with server memory to create a multilevel cache that optimizes the use of system memory and automatically determines the best cache level for active data, allowing applications to perform even faster than running fully on flash/SSDs.1

Open CAS is a project derived from the product Intel® Cache Acceleration Software (Intel® CAS). For Linux use cases, all usage has transition to Open CAS, but the data and use cases proven using Intel® CAS are still relevant. Intel still provides Intel® CAS for Windows.

Accelerate Your Scale-Out Storage Performance

Yahoo needed a faster, lower cost way to process hot data for 1 billion users a day. They got it by deploying Intel® Cache Acceleration Software (Intel® CAS) 3.0 on the Intel® SSD Data Center Family for PCIe* in their existing Ceph* environment.

Experience Open CAS

Whether you are using VMs or dedicated servers, you will quickly see how Open CAS server-side caching software plus any flash device (SAS, SATA, or PCIe*) can accelerate your I/O-bound business applications relaying on slower SAN or direct attached back-end storage. Want to learn more? Get involved with the Open CAS community!

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Using Windows? Intel provides a caching engine called Intel CAS that is still available for use and accessible below for download.

Download Intel CAS

  • Intel® CAS for Windows (client or server OS support)
  • Support provided for use with SSDs based on Intel® Optane™ technology only. Contact Intel Customer Support to open a support ticket.
  • Use with other block devices (including Intel NAND SSDs) is unsupported, but functional.

Product and Performance Information


Tests document performance of components on a particular test, in specific systems. Differences in hardware, software, or configuration will affect actual performance. Consult other sources of information to evaluate performance.
System Configuration: Sysbench Database Testing: Intel® Cache Acceleration Software (Intel® CAS) for Linux* v2.7.0, Intel® Xeon® E5-2680 processor @ 2.70GHz x2, CentOS* 6.5 kernel, 3.10.24, 32GB RAM, 50% of database cached, Intel® Solid State Drive DC P37000 Series 400GB, Sysbench v0.4.12 (16 threads, max request=1000).
System Configuration: Microsoft Hyper-V* Virtualization: Intel® Cache Acceleration Software (Intel® CAS) for Windows* v2.7.0, Intel® Xeon® E5-2670 processor @ 2.60GHz, Microsoft Windows* Server 2012 R2, 128GB RAM, Intel® SSD DC P3700 Series 400GB, 8x SAS RAID 5 as main storage.
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