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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Komodo REDCODE RAW and Media F.A.Q.

The need, ...

The need, ...

Now that the firmware has been through a few iterations, do we know the max data rate for Komodo HQ?

Since the introduction of RED MiniMags, 300MB/s has been the hurdle to clear. Not sure what the maximum read speed of a MiniMag is, but I have yet to see sustained reads over 400MB/s. Like many other RedUsers, I've been using external SSDs that can R/W @500MB/s as my preferred media for working files.

Going forward, what is the minimum R/W speeds for storage solutions sufficient to keep up with Komodo R3D media? The Angelbird CFast 2.0 cards spec out to 550MB/s R/W, but I'd be surprised if RED didn't leave a bit of headroom to allow for hiccups.

Bottom line - will the lower cost SSDs that only R/W at 500-550MB/s be fast enough, or, should we be moving to the newer and more expensive NVME based media that can R/W at over 1GB/s? The DCT based R3D codec used in Komodo (and I'd wager DSMC3) addresses the computational challenge of real time playout, but it all starts with fast enough reads from storage.

Cheers - #19
 
I have spent days fighting with the Sonnet SF3-2CFST using 1TB Angelbird cards. Support has been responsive, but so far no conclusive results. My latest theory is that the 1TB cards take just a little more power than that reader can supply, leading to all manner of horrible problems when connected to Mac Thunderbolt connections. I've ordered an Angelbird reader that will be here next week (thanks to Louis DeJoy wrecking the postal service and creating a cascading problem of logistics for all shipping companies during the holidays).

Because of this terrible experience, I have to completely rebuild my trust that the CFast 2.0 cards are not just a few milliamps away from total disaster when shooting for real. It really is unfortunate that RED's extensive beta testing process and rollout did not yield a more complete picture of what would be viable in terms of long-take cards and adequately high-speed readers. The promise of the platform is great in theory, but if I have to read small cards slowly and one at a time, it's not great in practice. :mad2:
 
Michael Tiemann said:
I have spent days fighting with the Sonnet SF3-2CFST using 1TB Angelbird cards. Support has been responsive, but so far no conclusive results. My latest theory is that the 1TB cards take just a little more power than that reader can supply, leading to all manner of horrible problems when connected to Mac Thunderbolt connections. I've ordered an Angelbird reader that will be here next week (thanks to Louis DeJoy wrecking the postal service and creating a cascading problem of logistics for all shipping companies during the holidays).

Because of this terrible experience, I have to completely rebuild my trust that the CFast 2.0 cards are not just a few milliamps away from total disaster when shooting for real. It really is unfortunate that RED's extensive beta testing process and rollout did not yield a more complete picture of what would be viable in terms of long-take cards and adequately high-speed readers. The promise of the platform is great in theory, but if I have to read small cards slowly and one at a time, it's not great in practice. :mad2:
Click to expand...

The Thunderbolt 3 interface can deliver plenty of power for your dual slot card reader. According to Wiki, its maximum power delivery (based on USB-PD, if I'm not mistaken), can deliver up to 5 Amps at 20 Volts. As far as i know, the Cfast card (or let's say the hardware in your Sonnet reader) tells the TB3 interface controller card (on your Mac) how much power it needs and the controller card provides it accordingly.
I guess a Cfast 2.0 card in active mode takes about 0.5A at 3.3V.
So, my theory is that it rather has something to do with the built in hardware or software of the Sonnet reader IF the cards can be used flawlessly on every other reader. Let's hope Sonnet can fix this with a firmware update.
 
100W of charge power is not coming out of TB3 ports. They offer a max of 15W.

Angelbird 1TB draws 2.8W max (0.85A). Dual nature of reader means 7.5W of TB3 power per side of the reader, leaving 4.7W per side to run electronics. Should be plenty, but when one takes into account many various overheads, and the fact that they may have simply undersized the output power driver, that's what I'm thinking.
 
My approved Pro Grade C fast card keeps giving me an error message at high frame rate

My approved Pro Grade C fast card keeps giving me an error message at high frame rate

My komodo keeps stop recording when I shoot at 6k 49fps at HQ , and sometimes even at MQ, but no problem when I use Prores.
 
Hi there. I'm a DIT and am looking for some record time/data info for the Komodo.
If I was to shoot an hour's worth of material in REDCODE MX on the Komodo in the following modes, what would the GB's count be
6K 17:9 / 6K WS / 6K 6:5 & 6K 4:3
Would appreciate any help you could provide. Thanks in advance
 
Shibbir Ahmed said:
Hi there. I'm a DIT and am looking for some record time/data info for the Komodo.
If I was to shoot an hour's worth of material in REDCODE MX on the Komodo in the following modes, what would the GB's count be
6K 17:9 / 6K WS / 6K 6:5 & 6K 4:3
Would appreciate any help you could provide. Thanks in advance
Click to expand...

I'm guessing you meant MQ? Not MX.

Based on the manual, and what Phil has above, you should be able to use a comparable setting for the data rate on the calculator at: https://www.red.com/recording-time

---
HQ - High data rate - Up to ~ 280 MB/s (~30 minutes recording time)*
MQ - Medium data rate (default) - ~175 MB/s (~48 minutes recording time)*
LQ - Lowest data rate - ~110 MB/s (~1 hour and 17 minutes recording time)*

* Data rate assumes camera settings at 6K 17:9, 23.98 FPS. Recording time assumes a 512 GB CFast card.
---

LQ looks like 7:1 to me, is this correct? That would seem much less compressed than what we typically used as "Low Quality" for long takes - usually at least 10:1 or even 12:1.
If that's correct, then MQ seems close to 4:1.
HQ is apparently off the game board!

We need to run some tests and determine data rates for the Komodo. It would be fantastic if RED could update the calculators online too.

Best regards
 
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