# System requirements for HLS with DVR streaming (memory, and hdd) **URL:** \ **Category:** Wowza Streaming Engine\ **Tags:** server-administration\ **Created:** [April 3, 2018, 12:12pm UTC](https://community.wowza.com/t/system-requirements-for-hls-with-dvr-streaming-memory-and-hdd/51067 "2018-04-03T12:12:29Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![Denis\_SA](https://avatars.discourse-cdn.com/v4/letter/d/e19b73/32.png) [@Denis\_SA](https://community.wowza.com/u/Denis_SA)\ **Post date:** [April 3, 2018, 12:12pm UTC](https://community.wowza.com/t/system-requirements-for-hls-with-dvr-streaming-memory-and-hdd/51067/1 "2018-04-03T12:12:29Z")
Hello, First question: You published the formula on this page [https://www.wowza.com/docs/how-to-configure-apple-hls-packetization-cupertinostreaming](https://www.wowza.com/docs/how-to-configure-apple-hls-packetization-cupertinostreaming) for calculating amount of memory for single stream for HLS. Did you mean every stream for every connected viewer? Or stream from coder to server? I noticed that streaming with DVR takes more memory. How to calculate server system requirements for HLS with DVR? My life example for future broadcast. How much memory and HDD space I need for 1 day of such broadcasting: 14 incoming streams (480p) – 1 Mbits 14 incoming streams (720p) – 2,5 Mbits with DVR for 10 hours (every day) Maximum connections (viewers) – 200 Outgoing protocol – HLS How much memory is better for these conditions? What about HDD?