Best Practice for VOD Remote Storage

Question

Hi All,We have a couple of servers that host FLV videos for on-demand playback.  The file storage however is on a separate server, and all the stored VOD content is accessed via UNC share, ie \servername\share\foo\bar.  The servers have a fast connection to the file server, however, whenever we try to play videos from the FMS servers, the first time its requested, they play back jerky and jumpy.  Most of the time though, the second time the video is played, it plays fine.  Also, if you try to seek ahead to a spot where no one's played back from before, it will be jerky the first time, but fine the second time.I'm assuming that the first time through, the FMS server caches the content, and then the 2nd time it servers it from the cache.  Since the servers have a very fast connection between them, what can be done to solve this?Also, would it be better to have an Origin server host the file content locally, and then use Edge servers to connect to and serve the files?  Would this alleviate the problem at all?  Thank you for any help.Best,-Costin

Asa_-_FMS · Answer

We're probably going to have to define 'fast connection' a bit here. It sounds like either the speed of requests needed for FMS, or their size is causing an issue getting sufficient data flow to FMS to avoid stuttering on the desired file. There's a few ways that you can measure this. You can go the route of measuring the I/O on network from your UNC server location, or if you're running an FMIS file adaptor you can plug in and log the speed of return of your reads. At the end of it though it's going to be about the numbers of how quickly we're able to answer FMS' requests for data and demonstrating that we do or don't have enough flowing through here.

Asa

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