Sean Oneil
Forum Replies Created
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Take the Quicktime movie you imported from the Avid machine. Open it in JES Deinterlace (google that and you’ll find the free download). Read the help instructions and use the “Deinterlace” option to make it 30p or 60p. Then import the resulting file into FCP, and make sure the FCP Browser shows field dominance for that clip as “none” before placing it in a sequence with matching settings.
Sean
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Wow, that’s disappointing.
Sean
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[Bob Zelin] “HOWEVER, uncompressed video is VERY do-able with 10Gb ethernet”
Of course.
[Bob Zelin] “because the maximum bandwidth is 70Mb/sec even with jumbo frames enabled”
Right, but I was talking about trunking 4 ports together. Not just on the server end, but the client end as well (4-port Small Tree card in the Mac workstation). It’s still 70MB/s (or whatever max you’d get if you only used 1 gb port).
[Bob Zelin] “These limitations are based on Apple AFP.”
I don’t think AFP is the problem. You can get “wire speed” (1gbps) with AFP. There are lot’t of factors preventing it and causing you to get 70mbps, but it’s not AFP. On the same system, try SMB sharing, NFS sharing, or try testing an FTP server and client. AFP will probably be faster than those when going from Mac to Mac.When they told you AFP was the problem, I think that was their way of saying this:
File-level sharing (AFP, SMB, NFS, etc.) and block-level sharing (iSCSI, AoE, Fibre Channel) are two completely different things. Block-level is typical going to be faster for editing. The problem is that you can only have one client at a time since it essentially works just like direct-attached storage. Multiple clients will cause data corruption unless a special cluster file system is used. Hence the need for SAN software (Xsan, MetaSAN, SANmp, etc.). Block-level storage combined with this software is what makes something a SAN. But with AFP, for example, it’s not a SAN, rather it’s called a NAS. So while you don’t get block-level performance, you don’t need any special software either.
[Bob Zelin] “One such solution is AoE (ATA over ethernet) – I am just learning about this – and became aware of this on THIS VERY FORUM from Robin Frost at 2 Degrees Frost, who makes a codec for MAC platform that supports AoE.”
See my experience with this:
https://forums.creativecow.net/readpost/197/855207Sean
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[paul durand] ”
Is it possible to edit all of this on a HDV 23.976 timeline? would it be problematic for outputting the master as it is destined for film and tape?”You’ll need to have the 60i footage converted to 24. You can’t do this with FCP and expect it to look halfway decent. I had to do this once and used a Teranex and it looked good. Maybe try Compressor.
Sean
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The new Intel Core i7 chips just came out and the Xeon version is due Q1 2009. Bet your ass there will be new Mac Pros announced at MacWorld.
I would wait.
Sean
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You should capture all footage at native frame rates but edit and master in 29.97.
The alternative is to convert everything to 29.97 first. Less stuff to render, but bad pulldown cadence will cause artifact problems on web clips and most consumer HD displays.
Sean
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Matt,
Thanks for the info, but I think there’s some confusion. I already have a managed Dell Powerconnect that supports dynamic LACP. In fact I think one of you guys recommended it to me back in 2005 when I purchased several dual-port Broadcom cards from you guys.
Bob,
Loved your article. I mean no disrespect, I just think it’s important those who read your article know that they do not need an expensive managed switch if they have 4 edit stations or less. That’s the only reason I commented. I actually obtained this information from Small Tree. Copied and pasted form a June 1, 2008 email from Steve Modica:
“Link agg is only useful in over subscribed situations. If you have 3 systems and 3 ports, don’t use it. If you have 6 systems and 3 ports, then it starts to make sense.”
Sean
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[Bob Zelin] “Well, if you have a PCI-X G5 just sitting there, with PCI-X interface cards for your exsiting storage – WHY NOT BUY THIS SMALL
TREE PRODUCT -“Because I already have three of them :).
Sean
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[Bob Zelin] “Another thing. If you aggregate 4 ports, you don’t exactly get a single 4gbps port as you suggested. Instead you get up to 4 sessions at 1gbps max each. In other words, say you use Link Aggregation on a Mac client and link 4 ports together. Then connect to a server that also has 4 linked ports. Your max bandwidth for a single video stream is still only 1gbps.
Just wanted to clear that up. When I first heard of Link Aggregation, I too thought it was the same a having a 4gb ethernet connection
REPLY –
Link aggregation, or IEEE 802.3ad or IEEE 802.1AX-2008, is a computer networking term which describes using multiple network cables/ports in parallel to increase the link speed beyond the limits of any one single cable or port, and to increase the redundancy for higher availability.Link aggregation is an inexpensive way to set up a high-speed backbone network that transfers much more data than any one single port or device can deliver.
Trunking is not just for the core switching equipment. Network Interface Cards (NICs) can also sometimes be trunked together to form network links beyond the speed of any one single NIC. For example, this allows a central file server to establish a 2-gigabit connection using two 1-gigabit NICs trunked together.
more information –
Using multiple transmission paths between network devices in order to increase transmission speed. Port aggregation between a server and a switch requires multiple network adapters (NICs) in the server or adapters with multiple ports. Each server port hooks up to a switch port, and the port aggregation software is typically in the server. When port aggregation is provided between switches, the software is in the switches. Also called “link aggregation,” “trunking” and “multilink trunking.””802.3ad LACP on Apple OS X does fault tolerance and load balancing, not round robin (which is what you are describing). Extra bandwidth can be achieved by using multiple sessions. However, a stream of video is not segmented into multiple sessions. So you get 1gbps max in the case of editing video. Uncompressed 1080 is impossible.
Sean
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[walter biscardi] “Except when it comes to Color. We run only ATI cards here in the shop because we use Color so much and even today, it runs better on an ATI card, especially the 1900 series.”
If that’s true, then it’s a bug in Color.
https://barefeats.com/harper8.html
Sean