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Thread: nDVR recording on RAM

  1. #1
    Join Date
    Jul 2014

    Default nDVR recording on RAM

    I'm using Wowza Streaming Engine 4.0.4 and i want to enable Time-shift Function on my live Streams over HLS
    My problem is HDD I/O when there are many concurrent users connect to my nDVR HLS streams

    I would like to know if its possible to catch the live streams on RAM instead of HDD to improve the performance and increasing concurrent users connecting to my stream server.
    how can i do it in my Origin and edge Server ?


  2. #2
    Join Date
    Dec 2007


    Take a look at this article on using MediaCache on nDVR edge servers. This will reduce the load on the origin by caching nDVR chunks on the edge.


  3. #3


    If you have plenty of memory and a relatively small store, you could create a tmpfs file system and use that for your nDVR or Media Cache store. The only downside is that you will lose the current files when the server is rebooted.


  4. #4
    Join Date
    Jul 2014


    Thanks for your replies
    I have 25 Streams and want to enable 1 Hour time shift on all of them
    because of 25 streams recording my origin HDD has became slow
    I have 32GB RAM on origin and 32GB on edges and i can increase the amount of System RAM if its needed
    what is your recommendation for best Media cache configuration on my origin and edge server?

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