Popular Japanese video-sharing site uses HP IO Accelerator cards to consolidate key video-content cache servers, while implementing a more scalable, higher performing growth platform.
Dwango’s Nico-Nico Douga service is a popular Japanese video-sharing site with 1.5 million paid subscribers and over 26 million registered users. It is one of the most visited websites in Japan.
As Dwango’s video-sharing business grew, scaling its video-hosting caching tier became problematic. Nico-Nico Infrastructure Manager Tetsuya Sato realized Dwango needed a solution that could address the following challenges:
Raising the Roof on Reporting Performance
Tetsuya knew that slow disk I/O was a key constraint in Dwango’s environment. After seeing the ioDrive card’s excellent price/performance ratio, he decided to test its performance on some of Dwango’s MySQL databases.
Tetsuya said the results were better than he had hoped. “On jobs that typically took a day to run, the HP IO Accelerator cards reduced their processing times to just hours. This enables us to make business decisions that weren’t previously possible.”
This impressive performance convinced Tetsuya to test whether the HP IO Accelerator cards could be as effective on Dwango’s video-hosting servers.
Maximizing Scale-Up to Minimize Infrastructure Footprint
Dwango’s primary objective was to consolidate the footprint of its video-caching tier to halt the escalating costs of its disk-based system. At the same time, it could not sacrifice its best-in-class performance. The SanDisk-powered caching tier accomplished this, enabling Dwango to slash its server footprint by 75 percent, and eliminating 1,600 hard disks, all potential failure points, from its system.
“Using HP IO Accelerator cards, we consolidated the video-hosting caching servers by a factor of four to one, cutting 200 servers to about 50 servers,” Tetsuya said. “This consolidation fully utilizes the 10GbE bandwidth in each server and leaves plenty of I/O headroom for complex, on-demand traffic for a 200,000-user workload.”
Infrastructure Manager Nico-Nico Douga, Dwango
Hot Performance for Hot Data
A challenge that Web content providers are keenly aware of is accommodating massive traffic spikes as content popularity surges. Disk-based systems require massive scale-out to build in this headroom—something that is not the case with SanDisk-powered systems.
“Hot videos can be viewed by tens of thousands of simultaneous users,” explained Tetsuya. “Supporting high performance for our hot content used to require about 20 servers. The HP IO Accelerator cards have allowed us to support these same traffic spikes with just four to five servers at the most. This allows us to guarantee our customers a consistently good experience for all content, regardless of popularity, and without the over-provisioning we used to need.”
In addition to cutting its hardware spending, Dwango realized an immense reduction in facilities costs and total cost of ownership that included the following:
Implementing Fusion ioMemory solutions gave Dwango the following benefits:
Tetsuya is thrilled and told us, “SanDisk has made what we once thought impossible a reality. The HP IO Accelerator cards have become a major contributor to a paradigm shift to support Dwango’s next level of growth.”
DWANGO Co., Ltd. is a Japan-based company providing content for online entertainment and game software, providing services for mobile devices, games and gaming software, animation, live event coverage and general entertainment. Its Nico-Nico Douga service is a popular Japanese video-sharing site with 1.5 million paid subscribers and over 26 million registered users. It is one of the most visited websites in Japan.
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