looks like the phantom 3 records mp4/h264? those files will be somewhat compact vs other formats, reducing the demand placed on the drives. the lacie rugged raid should work fine to hold that media and then you can set the project cache to the C: flash drive. if you are working on small projects, you may be able to store everything on the flash drive and backup to an external drive. if you want to keep media on an external drive, the ssd will provide quicker response time accessing different clips when editing.
Thanks for the answer. Pretty much agree. I was wanting to set it up for higher data rate 4k if I start adding camera video in with the phantom 3 4k. From what I've read most 4k video is 50MB/s or under constant with some slight spikes it this true? If so then the lacie shouldn't run into any problems with raid 0 and 240 MB/s read and write speeds.
Is my thinking correct or am I missing something? Want to get it all set up correctly from the beginning and have it future proof......for at least 6 months.
media bitrate is determined by its format/codec, there are many different sizes and formats that will require more or less hdd and cpu speed. Tweakers Page: Video Codecs
the lacie drive you are looking at is probably using 2x 5400rpm drives. if you are looking for long term, to handle larger bitrate media, you may want to look for a raid with 2x 7200rpm drives. those might get peak speeds around 300-350mbs. single ssd drives like the samsung t1 are still faster and smaller for portability. if you are worried about having enough space for backup, you can still get a large external usb hdd or two for cheap.
Thanks. I couldn't find the speed of the lacie listed but I'll try to find a similar setup with 7200s. I see ProRes 4444 (4K) is pretty high. Thanks for the info.