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



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
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