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Trying to determine effective and affordable storage setup for short film
Hey, I am editing a graduate school thesis film and I’m trying to figure out the most reliable, yet affordable storage setup that I can request for line producer to purchase. Can anyone give me further advice on storage setup based on these calculations?
The film is an action thriller and there is a fight scene that takes place in an underground boxing ring.
The storage number I came up with was 12TB (doubled to 24TB for backups). I’ll explain how I came to that number below, but I also found a few interesting things along the way.
The first was whether shooting on RED vs Sony F55 vs Alexa, the data rates were all about the same. So independent of what camera the DP chooses, the main questions were these: resolution size, how much flexibility with coloring, and the quality of image in slow motion compared to the amount of memory. The differences between shooting in slow motion and 24 frames per second were negligible when in terms of the amount of storage needed — because of that I estimated all the footage at the same data rate.
Because I estimated that the cameras were more or less the same when calculating the cost of storage, I used the RED Weapon Helium 8K which is the graduate school’s thesis camera. The numbers below reflect that camera’s memory/storage needs.
6 days (2 days with 2 cameras) = 8 days of footage
12 setups per day (for first 4 days)
5 takes per setup (for first 4 days)
2.5 minutes per take (for first 4 days)
total footage = 600 minutes (for first 4 days)12 setups per day (for last 2 days, and times two cameras)
4 takes per setup (for last 2 days, and times two cameras)
1 minutes per take (for last 2 days, and times two cameras)
total footage = 96 minutes (for 2 cameras, 48 minutes per camera for last 2 days)at 5:1 R3DCODE
700 minutes approx. = 21 cards (512 GB rounded up) = 10.752 TB = 13.44 TB (with 20% space left in drive, recommended for drive functionality and for contingency)at 7:1 R3DCODE
700 minutes approx. = 14.89 cards (512 GB rounded up) = 7.63 TB = 9.54 TB (with 20% space left in drive, recommended for drive functionality and for contingency)I recommended using a more memory intensive compression for fight scenes, especially those in the boxing ring (for example, 5:1 R3DCODE). Conversely, I recommended using less memory intensive compression for slower, dialogue scenes (for example, 7:1 or even 8:1 R3DCODE).
The 12 TB (24TB with backup) that I arrived at is an average that takes into account using compression rates based on the needs of each individual scene.
These calculations are also excluding the option in RED cameras to shoot in-camera ProRes proxies since I will be cutting in AVID Media Composer, however, this affects the speed at which DIT is able to prepare footage for director to review each day. We unfortunately don’t have a full-scale video village setup available so it will take longer on the system we have to transcode the raw footage to DNxHD. I’m being told that 24TBs is over budget for post-production on this film, but I’m not sure how to go lower.
Thanks!