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this raid any good for 4K editing in PP CC 2014?
https://eshop.macsales.com/item/OWC/TB2SRT12.0S
is this perhaps the best one at the moment for new mac pro, raid 5, via thunderbolt, better than the Gtech and Pegasus RAID versions?
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8 Replies
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Are you editing compressed 4K? If yes then you don’t need some super insane fast drive, but you’ll need a beefy CPU/GPU. Are you editing uncompressed 4K? If yes then you’ll need a super insane fast drive that can read/write about 1,5GB/s.
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so the 675mbs is good for say 4K compressed to pro res 422 HQ edit? But I need twice that you’re saying for real 4K uncompressed edit, correct?
Anybody know how that CineRaid 8TB compares with the OWC and Gtech and Pegasus offerings?
Using latest mac pro, latest Mac OS, latest PP CC 2014.
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I’ve been testing this bad boy out…and I like it. Mainly with 1080p footage, but I have made a sequence of RED files and did a quick edit to see if it staggered at all. Nothing…sharp as a tack. That’s plenty of speed for 4K ProRes, for sure.
Shane
Little Frog Post
Read my blog, Little Frog in High Def -
Thanks Shane – you’re talking about the OWC 12TB version or what? With what kind of drives, sad or hdd?
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I’m testing the 12TB OWC Thunderbay 4, the exact model you linked to. I started testing it as a RAID 5 using their SOFTRAID software. But then I also tested it RAID 0. Faster RAID 0, for sure. Even RAID 5 handled 2 streams of 4K ProRes HQ.
The drives are SATA drives…3TB. Not sure of the model. I can get those specific models when I’m back in the home office.
Shane
Little Frog Post
Read my blog, Little Frog in High Def -
I linked the Cineraid enclosures since they use hardware LSI SAS raid on the 8 bay units. Software raid will always be slower than Hardware raid especially in parity raids and rebuild times. The 4 Bay OWC unit is TB2 which is an advantage over the 4Bay Cineraid unit which is TB1. I would recommend looking at the 8 bay unit though and just putting in 4 drives to start if the budget is more limited. Desktop HDD’s are not a good idea for parity raids due to them lacking the timeout recovery feature enterprise drives have. Often times a drive will take to long in a repair operation and the controller will prematurely mark it out of the raid since it doesn’t respond during repair operations. Enterprise drives are more expensive but have the timeout recovery feature. Parity raids such as raid 5 and 6 show this problem far more than Raid 0, 1, or 10. Keep that in mind regardless of what unit you look at. Software raids will take long periods of time to rebuild degraded arrays.
Tero is correct regarding 4K compressed versus uncompressed. A 4 Drive raid 5 will normally net you 450 to 500MB/s average transfer rate. Burst may be over 600MB/s but that drops as soon as the cache is full. The Cineraid units also have 1GB onboard cache which significantly improves performance over time with read and write operations. The lower the cache the quicker the burst speed performance drops.
Eric-ADK
Tech Manager
support@adkvideoediting.com -
I’ve yet to test or see a review of these units, but Lacie has some very interesting thunderbolt drives in the making:
LaCie 5big Thunderbolt™ 2
https://www.lacie.com/se/products/product.htm?id=10623LaCie 8big Rack Thunderbolt™ 2
https://www.lacie.com/se/products/product.htm?id=10622
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