David Davidson
Forum Replies Created
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Philipp
Who build your system?!
David
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Thanks for the reply Jess.
This discussion interests. What are the great many benefits you mention for a NAS over a fibre SAN aside from cost? The 10Ge has a huge price appeal, obviously. But what are the trade offs?
From my limited understanding, the metadata part on fibre systems is handled on a separate network (like ethernet) and by a separate controller. I thought this didn’t add overhead and if so, it was marginal.
My concern is that a TCP/IP protocol based NAS ties one to a human pick-up-the-phone vendor support should that relatively complex and proprietary server build go south or does something weird with the client OS–which in the case of Apple, gets altered without letting anyone know. This is what I’d like to avoid.
In my limited experience, and in the opinion of this other highly regarded SAN vendor, the points of failure on a fibre SAN are relatively modular, standardized and largely field user serviceable with spares as one such anticipation. The only complex knowledge required was switch zoning, and save two failed Qlogic switches, the user available updates (without picking up a phone or having someone log in), and two brief support sessions, it was solid day-in day-out for 8 years.
This was not my experience with a value-added mainstream vendor NAS server which appears to be inextricably tied to support to rejigger the server & clients, should something fail. Also, everything inside is proprietary. Are there any user-friendly spares on these systems? I’d imagine largely not, as the storage is sold as one piece inside the NAS.
I’m not diminishing the valuable support angle, I’m attempting to illuminate the distinction in the kind of future support required for one of these units.
And asking to understand, in detail.
Thanks
David Davidson
Managing Director
solventdreams, llc
http://www.solventdreams.com
4222 santa monica blvd
los angeles, ca 90028
323 906 9700
info@solventdreams.com -
Bob,
I believe you’ve misinterpreted my question.
In any case, those not already professionally mature and well-mannered as you are, may in fact, benefit.
I’m asking a very specific question because another highly respected VAR who advertises here as well expressly pointed out the issue raised by this specific question–that the Ethernet protocol is not well suited to a 4+ scalable user situation in a mission critical environ as it requires fundamental VAR-oriented stack tuning and the like and it was not designed for heavy video use, thereby requiring tweaks. So, I’d like to learn more why people who sell the stuff think it is suitable, if there are limits compared to the fibre channel ecosystem (of which I’m familiar) and which is designed for this direct access heavy lifting.
It may interest that I’m not putting these together like a VAR or trying to save money and roll my own. And of no minor consequence, that I’ve had a major VAR provide an Ethernet-based shared storage solution which failed to perform in a mission critical environment. The vendor graciously apologized–and who knows, it may have been multiple systems–but it was a disaster and the solution was not robust enough.
I do know for certain, that if I’d used a fibre-based solution, those problems would not have presented–at least from my experience. The SAN I used for years was set it and forget it–across many OS updates, different programs, file types. It just worked 99% of the time. The 1% was the usual stuff, user operation things.
In any case, it’s made me think twice about ethernet-based solutions. And I’d love to know more about the inner issues of 10G systems.
Thanks,
David Davidson
Managing Director
solventdreams, llc
http://www.solventdreams.com
4222 santa monica blvd
los angeles, ca 90028
323 906 9700
info@solventdreams.com -
Hi Chris
I’m in the middle of specing a 4+ user system, expandable to 6 or so..mostly offline work, with one or two heavy use clients. I’ve been looking at ethernet based NAS-like stuff. The appeal of these NAS systems is that they are less expensive and also, can be made DYI,or bought value-added from vendors like SmallTree, InfoTrend, ACNC, etc.
From what I’m learning, the protocol used on these GigE systems requires tuning and when it does go out of whack, needs tinkering often deeper than the end user can manage. Meaning, you can’t just download an updated driver and you’re off and running. I’m hearing this is due to the underlying protocol ethernet uses, not designed for big file moves like direct storage-to-client protocols like fibre channel. It seems there will always be tuning needed along the way. It’s not set it and forget it to the extent that any OS update can meaningfully alter that protocol.
I’m wondering what the VARs here say to this.
David Davidson
Managing Director
solventdreams, llc
http://www.solventdreams.com
4222 santa monica blvd
los angeles, ca 90028
323 906 9700
info@solventdreams.com -
Hi Neil
Thanks for working this out and sharing this. The script is a great idea. I’d be interested in it!
David Davidson
Managing Director
solventdreams, llc
http://www.solventdreams.com
4222 santa monica blvd
los angeles, ca 90028
323 906 9700
info@solventdreams.com -
Found out it’s easy with an LHi. Just use VTR exchange.
David Davidson
Managing Director
solventdreams, llc
http://www.solventdreams.com
4222 santa monica blvd
los angeles, ca 90028
323 906 9700
info@solventdreams.com -
Interesting. I’d guess 608>708 container aren’t considered “true 708” captions. So I wonder if most broadcasters would accept them.
David Davidson
Managing Director
solventdreams, llc
http://www.solventdreams.com
4222 santa monica blvd
los angeles, ca 90028
323 906 9700
info@solventdreams.com -
Thanks for sharing that. That could be our problem too. How did you force 608>708?
As we speak, I’m trying a Kona 3. See if I have better luck.
Allegedly, to recapture the captions if you have a Blackmagic card, you have to do it at 10bit uncompressed. https://forum.blackmagicdesign.com/viewtopic.php?f=3&t=7670 Not ideal.
David Davidson
Managing Director
solventdreams, llc
http://www.solventdreams.com
4222 santa monica blvd
los angeles, ca 90028
323 906 9700
info@solventdreams.com -
Did you get this to resolve? Having the same issues getting a CPC generated 708 caption file inserted onto a HDCAMSR.
David Davidson
Managing Director
solventdreams, llc
http://www.solventdreams.com
4222 santa monica blvd
los angeles, ca 90028
323 906 9700
info@solventdreams.com -
Eric, is there a way to contact you off list about consulting on a job? (Sorry for thread heisting)