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HD video via Ethernet?

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jeremy Rowell
HD video via Ethernet?
on Mar 15, 2011 at 6:19:19 pm

Anyone have any experience or thoughts on editing HD video via an Ethernet Raid Drive?
Drive is this: Iomega StorCenter ix4-200d NAS Server - 8TB

Any help would be appreciated.

Jeremy



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Floh Peters
Re: HD video via Ethernet?
on Mar 15, 2011 at 6:27:41 pm

If the media is compressed (e.g. ProRes) you should be good to go. If not, then you are most likely out of luck.



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jeremy Rowell
Re: HD video via Ethernet?
on Mar 15, 2011 at 6:36:48 pm

Those were kinda my thoughts. We do not have the pro Res codec. Files would be QT DVC PRO HD maybe some Animation.



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Bernhard Grininger
Re: HD video via Ethernet?
on Mar 15, 2011 at 7:59:28 pm

Hello,

in the past M100 had a "user-permission" error at soft-importing
video files from an ethernet storage. But this seems to be solved since M100 v1.6!

- For max performance I would recommend the most expensive Cat7 cabling.
- If you have a cheap ethernet switch then throw it out of the window!!!
I made good experience with hp procurve 2910 and 1810G; for up to 6 users
the ProCurve 1810G with its 8 ports is very affordable and FAST!
- You need to use bonding/link-aggregation
(2 ethernet-connections acting as one) between storage and switch
- Use jumbo frames
- Use RAID5 at your NAS
- Only use AFP to connect your OSX workstations
- keep internet and other nw-connections on
a separate network and switch!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
- personally I would prefer a NAS with Intel Atom processor like a Qnap TurboNAS +
("+" means the version with the even faster CPU)
but this depends on how many workstations should be connected and how many HDDs
the NAS has to manage;
If you need to connect 2 workstations, then 4 HDDs in the iomega might be fine.
If not, I would reconsider my choice!

If the setup is correct then this configuration will work up to ProResHQ 1080i and even better with DVCProHD!

Best Regards


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jeremy Rowell
Re: HD video via Ethernet?
on Mar 15, 2011 at 8:34:55 pm

That is some crazy good information! Thank you for taking the time to reply. That is very helpful.

Jeremy



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Bernhard Grininger
Re: HD video via Ethernet?
on Mar 18, 2011 at 3:04:16 pm

You're welcome!

I was in the same situation years ago.
My personal tip is not to ask any video-guy
(ironically I'm a video-guy myself ;-) ) for things like this.

Ask instead a true expert on network storage for whom videos are nothing special
but data like any other.
Your part is to describe him/her exactly the demands of your workflow.

(I believe video guys generally tend to be too conservative to benefit consequently
from latest IT-technologies;
or why else would someone e.g. pay €70.000 for a HDCam-SR Videorecorder -
A VIDEORECORDER !?!?!?!
in the 21st century - instead of getting a modern IT solution like a KiPro... )

Best regards,
Bernhard

P.S.: Sorry for propaganda - but you're listening ;-)


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Michael Slowe
Re: HD video via Ethernet?
on Mar 20, 2011 at 11:52:16 am

Bernhard, we're all listening! It's the sudden rise of file based media rather than tape that's taken a lot of us by surprise. Most of us want to concentrate our creative efforts on making decent productions, not on technicalities, but all this new stuff won't go away. Not so long ago an HDCAM deck was essential in the chain if you wanted an HD archive copy of a production. Now we have to rely on the file not being lost when a fragile drive fails.

Michael Slowe


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Bernhard Grininger
Re: HD video via Ethernet?
on Mar 20, 2011 at 12:49:59 pm

Thanks for listening ;-)

And absolutely agreed!
Backup is a huge problem.
And some steps in the chain of file-based workflow still aren't sufficient yet.

e.g. Scaling HD -> SD:
My current workaround for scaling is to put and playback my ProResHQ HD masters with KiPro,
and recapture them with my MXO2 in SD.
I HATE THIS WORKAROUND! - but I need to use it to get acceptable results.
Unbelievable but true - there's not a single software capable in good scaling on the market.


Best regards,
Bernhard


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Michael Slowe
Re: HD video via Ethernet?
on Mar 20, 2011 at 2:54:25 pm

Bernhard, the best downscale I've encountered is within BitVice but, of course, I only use that when encoding DVD's from an HD timeline. Alas, the Media 100 downscale is not now what it was when we had the HDx hardware. There are of course plenty of expensive boxes to give first class downscales.

Why do you need to downscale other than to encode for DVD? Presumably you don't now distribute or exhibit via tape, or do you? Can you not put stuff on the web in HD? Of course, for archiving we keep the files in HD or whatever codec we finished in.

Michael Slowe


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Bernhard Grininger
Re: HD video via Ethernet?
on Mar 20, 2011 at 6:14:48 pm

Thanks for the tipp!

Yes, I need to downscale primary for DVD production.

For web and BluRay I use Matrox MAX which uses the Matrox HW-scaler and delivers excellent quality,
but only outputs progressive H.264 files; therefor unusable for further DVD encoding
(for DVD encoding I use CinemaCraft CCEmp with usually 30 passes - so I really need the maximum SD quality I can get)

BitVice does indeed have one of the best SW-scalers and it's the same as VideoPurifier.
My tests have shown it is nearly indistinguishable from Final Cut Pro's scaling with nesting HD into a SD timeline with motion estimation set to best. I believe Apple and Innobit are using 100% the same method (if not the same algorithm)! But the images are blur compared to a HW-scaler.
Good results I also got from MPEG Streamclip, but it seems to process 4:2:0 only at 8bit.

My hope is that Matrox expands MAX to output uncompressed 10bit interlaced,
or that AJA delivers a small application for file-based scaling.
I'm also interested in the CUDA scaling of Premiere CS5, but I don't have access to an appropriate CUDA card for testing yet. PP uses Lanczos2 low-pass filtering with bicubic resampling - in theory an absolutely excellent quality!
(CS5 uses SW only a different algorithm than with CUDA and the results suffer the same problems as any other SW scaling)

Currently there is only one solution for arbitrary file based HW-processing out there:
http://www.teranex.com/products/vc400
And I don't want to know the price ...

Best regards,
Bernhard


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