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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 :)

Red Raid

10 GB fibre to my knowledge doesn't support that kind of data rate.Not at least with any kind of OS overhead, the machines and the hard drives just arn't there ( i know i build SANs amongst other things). The min you would need mechanically is a 40 drive enclosure. But if anyone can do it I'm sure Jim's team can, i just know some of the engineering headaches they're already facing are only going to get more monstrous when that system is going to be taken out of the Lab and onto set.
 
Jeff Brue said:
10 GB fibre to my knowledge doesn't support that kind of data rate.Not at least with any kind of OS overhead, the machines and the hard drives just arn't there ( i know i build SANs amongst other things). The min you would need mechanically is a 40 drive enclosure. But if anyone can do it I'm sure Jim's team can, i just know some of the engineering headaches they're already facing are only going to get more monstrous when that system is going to be taken out of the Lab and onto set.
Click to expand...

What about Apple or Sun system?
Should do the job with 12 disks?
 
Rob Lohman said:
We can't give you any more details, otherwise we would've already done so.

Obviously it needs to support at least 900 MB/s (max resolution & frame rate)
Click to expand...

Is that 900 MBytes not Mbits . . . per second? "Holy bandwidth, Batman"
 
Yes, megabytes per second, not mbits.
 
So that is 7200 megabits\sec if my math is right. What are the other data rates?

REDCODE is 27 megabytes\sec 220 megabits\sec is that constant?
 
Ciprico has a relatively new raid product that supposedly can do 1.5GB/s, though they use a bunch of 2.5" laptop drives. Great if you're looking for something that is physically small, but not so great if you're wanting a large storage array.

MediaVault 4440:
http://www.ciprico.com/Products/MediaVault.cfm#MediaVault_4440
 
ElysianChris said:
Ciprico has a relatively new raid product that supposedly can do 1.5GB/s, though they use a bunch of 2.5" laptop drives. Great if you're looking for something that is physically small, but not so great if you're wanting a large storage array.

MediaVault 4440:
http://www.ciprico.com/Products/MediaVault.cfm#MediaVault_4440
Click to expand...

If they have that much through-put it wouldn't take anything to scale the storage up.

How loud do you think those Raids are going to be? Need some ADR loud I bet.

So how long of cable can you get for that much bandwidth? Camera to video village.
 
One note that ciprico is a 4 port 4 Gb device. So its out. Its just one of those things, by the time you account for overhead youd really need a device capable of 15 Gbs a second. Again its doable if they go with infiniband, otherwise I also wouldnt say a custom optical connector isnt out of the realm of question.

But at that point youre talking about some very hard technology.
 
Something like it but its not a single fibre port device....maybe the red team is thinking along the lines of some kind of external optical to quad link HD-SDI interface but even thats broken by the idea of recording 4.5k.

In any case its still too low bandwidth 807.5 MB/s + 10% for disk overhead is the magic number for 4.5k raw uncompressed at 60 fps.

Just like everything else they've set themselves a challenge, i've got a bit of faith though.
 
But then you need to decide if you want it protected :-/ Were just ordering a new av raid.. it's a nightmare!

1x raid 10disks >twin e-sata (raid0) 450Mbs so 2 cards +20 disks..900Mbs

with the one we ordered you can do raid5 but it drops to 320Mbs.

still not enough! :-0
 
the raid slow down in speed can be solved just by adding more disks and cards, really youre looking at a 40 drive raid 50 to hit those speeds in a direct attached mode.. Otherwise you're gonna look at heading into SAN land.
 
Doesn't make sense to have storage >1TB available at 1GB/sec.

It would be a low volume/high bandwidth cache device feeding a higher volume/low bandwidth san or similiar.

Dave,
 
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