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How to Set Up a LAN with Vienna Instrument?
Last post Wed, Oct 25 2006 by Fontenette, 30 replies.
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Posted on Fri, Oct 20 2006 17:49
by Angelo Clematide
Joined on Thu, Sep 08 2005, Posts 1139
Well, in the mean time I have my four computers connected via a 4 channel WLAN Router. However, after what cm said at the beginning of this thread, I never tried to stream the samples over the router from another computer, but I may test that soon.

The router model is a: ZyXEL P-660HW Series

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Posted on Fri, Oct 20 2006 18:40
by cm
Joined on Fri, Dec 20 2002, vienna, Posts 9116
angelo, the 660HW has a built-in 10/100 Mbit switch (means each port can transport a maximum of 100 megabit/sec) - one stereo channel 24 bit 44,1 kHz needs ~2 mbit/s, so in theory you can transport almost 50 *voices* simultaneously (subtract at least 20% for real life)

conclusion: forget 100 Mbit network for streaming (and of course WLAN too) - it's just good to copy something from A to B or browse the internet ...
christian
and remember: a CRAY is the only computer that runs an endless loop in just four hours ...
Posted on Fri, Oct 20 2006 19:07
by Jerome
Joined on Mon, Jul 10 2006, Los Angeles, CA, Posts 298
So, in theory, a gigabit network would be fine?

What about the hard drive perfomances - if you're accessing it from numerous computers at the same time - isn't it going to be a problem?

Jerome
Posted on Fri, Oct 20 2006 19:37
by cm
Joined on Fri, Dec 20 2002, vienna, Posts 9116
my advice would be: don't toch such a configuration without knowing, or at least having someone who knows - too many factors to consider (not some network technician but someone who also knows how sampling works)
of course then harddrive performance will become an issue (but sometimes it is already on the local computer).
gigabit is basically fine, theoretical 500 *voices* to stream possible (remember: subtract at least 20% overhead / headroom), but often computers do not even get such a data throughput over their internal bus ...

the best method would be: KIS - keep it simple. share only data which would be redundant otherwise and keep heavily used samples as close as possible to your processor ...
christian
and remember: a CRAY is the only computer that runs an endless loop in just four hours ...
Posted on Fri, Oct 20 2006 20:44
by Jerome
Joined on Mon, Jul 10 2006, Los Angeles, CA, Posts 298
Ok, thanks - good to know.

I am not sure this is totally related, but in terms of *where* the samples are being stored, would you recommend :

1/ On the SATA system drive
2/ On an external, (IDE) FireWire drive?

Jerome
Posted on Fri, Oct 20 2006 20:46
by Stéphane
Joined on Tue, Mar 11 2003, Nantes, France, Posts 149
I think that for this purpose classic Ethernet connection is a no way !

iScsi should work, but it will be cheaper and more simple to put a hard disk in (or near) the computer.
Stéphane Péneau
CASAWAVE
Posted on Wed, Oct 25 2006 02:04
by Fontenette
Joined on Wed, May 31 2006, Omni Present, Posts 59
Wouldn't the ultimate system for the VI's be one that utilized Fiber Channel? Have the samples on a dedicated server (Xserve) using 3-3GHz Mac Pros connected via Gigabit Ethernet on a LAN. I think all doubt about throughput would be solved; and you would have one of the most powerful, kick a%$ work stations on the planet.
Logic Pro 7.2.3
Mac Pro 3.3 Quad-Core Processor, 12GB RAM
Mac Pro 3.0 Dual-Core, 8GB RAM
Posted on Wed, Oct 25 2006 05:22
by cm
Joined on Fri, Dec 20 2002, vienna, Posts 9116
for fibre channel some things have to be taken in consideration:
- we currently see the move in fibre channel technology from 1 Gbit over 2 Gbit (like XServe has) to 4 gbit and you hou have possible connections over copper or optical cable.
- there are 2 possible network designs - switched fabric or arbitrated loop.
- usually fibre needs 100 MHz 64bit PCI-cards to make use of the full bandwidth (would be hard to get for notebooks), some cards are compatible to 32bit 66 MHz slots but then would not gain the full performance.
- fibre switches are significantly more expensive than ethernet switches
- XSERVE has to be configured to not cache data, otherwise the theoretical performance will not be available for sample-streaming.

doesn't sound like an easy studio-setup i'd say ...
christian
and remember: a CRAY is the only computer that runs an endless loop in just four hours ...
Posted on Wed, Oct 25 2006 15:18
by Jerome
Joined on Mon, Jul 10 2006, Los Angeles, CA, Posts 298
The other problem is that xSan technology is not compatible with ProTools. If you want to have a central data server and use ProTools, it is better to use solutions based on iSCSI (like GlobalSan from StudioNetworkSolutions).

Jerome
Posted on Wed, Oct 25 2006 18:15
by Fontenette
Joined on Wed, May 31 2006, Omni Present, Posts 59
I was speaking of desktop Macs. Thanks, you guys just stopped/saved me from spending a lot of $$$. Cool
Logic Pro 7.2.3
Mac Pro 3.3 Quad-Core Processor, 12GB RAM
Mac Pro 3.0 Dual-Core, 8GB RAM
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