Craig, Spinning disk all the way for your initial work space, you can do SSD for longer storage. You don’t need to do SSD for default storage - it’s not worth the time or cost IMO (which is based on 4 years in the video surveillance industry). — Ryan > On Dec 25, 2014, at 12:49 PM, Craig Smith <craigallynsmith at gmail.com> wrote: > > Season’s Greetings TC-LUG’ers, > > > I run a DIY network of security cameras that work in two parts. > > > FTP (or server pull) > > A number of cameras send jpeg images to server several times a minute. > > > FFMPEG > Once a day, read last 24hrs of jpegs and write out the mp4 video. > > > Calculating the mp4 files takes most of the time, preventing higher frames-rates, increasing sever load (impacting other uses) and delaying availability of the final video. > > > QUESTION > > Since this is disk-intensive, I trust performance would improve if Jpegs were written-to and read-from solid-state drive (SSD) as opposed to traditional spinning mechanical-platter hard disk (HD). I plan to continue writing the final MP4 to HD. Looking at RAID for faster reads serving the final product. > > > I understand SSD are faster, quieter, more reliable, and uses less power than HD (compelling arguments) but have a limited number of read-write cycles before failure and are prone to fail on power outages. > > http://en.wikipedia.org/wiki/Solid-state_drive#Comparison_with_other_technologies <http://en.wikipedia.org/wiki/Solid-state_drive#Comparison_with_other_technologies> > > If I run 5GB per day through a 120GB SSD what’s the expected MTBF? > > > Otherwise, more ram and a faster cpu should help. Any system design, hardware, or architecture tips? > > > > > -- > Craig A. Smith mailto:craigallynsmith at gmail.com <mailto:craigallynsmith at gmail.com> > > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mailman.mn-linux.org/pipermail/tclug-list/attachments/20141225/99553f51/attachment.html>