Big Data software company Acunu said it has closed £2.2 million ($3.6 million) in Series A financing. The startups software helps bridge the gap between expensive in-memory storage and cheap-but-slow hard drives, by offering a rewrite of the storage stack optimized for solid state drives.


Data storage startup Acunu has closed on a £2.2 million ($3.6 million) Series A round to help bring its first product to market. The London-based company raised the money from Eden Ventures, Oxford Technology Management and Pentech Ventures LLP, and the round brings Acunu’s total funding to £3.1 million.

Acunu makes software that will help solid state drives act as a more efficient bridge between expensive, in-memory RAM and cheap-but-slow hard disks. Instead of writing to hard drives and leaving information locked away, today’s applications want access — and quickly — to a much larger percentage of data stored in memory or on memcached servers or SSDs near the web server. But that speed comes at a cost, and the closer to the compute the storage is, the more expensive it is. SSDs are emerging as a good compromise, but Acunu believes there’s a niche it can fulfill by rewriting the software stack for SSDs.

The Acunu software runs on commodity servers, and appears optimized for solid state drives. It’s in private beta with a few undisclosed companies in the social media, advertising and cloud computing sectors participating. The software kernel uses a modified version of the Cassandra database for input and allows for multiple queries on distributed databases, giving one a unified view of the databases, which is key for companies with multiple data stores around the world.

For more on the topic of big data, including some hot startups, I hope to see you at our Structure: Big Data event on March 23 in New York.

Related Research about on Big Data from GigaOM Pro:

  1. [...] This post was mentioned on Twitter by Jeffrey Blake, structureblog. structureblog said: Exclusive: Big Data Startup Acunu Raises Small Funding: Big Data software company Acunu said it has closed £2.2… http://dlvr.it/HPPpF [...]

  2. The “more efficient bridge” between RAM and HDD is SSD cache:

    Solaris ZFS L2ARC or Facebook’s flash cache for Linux. It would be nice to see something more interesting of course than these obvious caching solutions.

  3. Acunu is doing somewhat more than a flash cache; it’s rewriting the storage stack for Big Data. This is a fundamental bottom-up rewrite, including advanced algorithms for RAID, LVM, buffering, caching, prefetching, and of course the FS – which we believe is the wrong abstraction for Big Data applications. Instead of exposing a file system, it exposes a sort-of generalized key-value interface so that applications such as Apache Cassandra and others finally have a storage stack on which to build. No more userspace FSes – this is the storage stack for Big Data.


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