On Thu, Nov 01, 2001 at 09:26:23AM -0500, Ryn wrote:


Ryan, 

220R with 450 Mhz single CPU, 512Mb and Sun GE card. 
In average it gives us 150Mb/s which is 
good only for 2 DLT8000 if you don't compress data 
on clients. 

Didn't play with tunnings much but in Curtis book I found something 
interesting  about this. pp 663 First edition. 
E10k and 420 with 4 CPUs  gave 200Mb/s in average between of them.
In your situation you probably can use jumbo frames which should
fix the problem. 

I am thinking to use Ultra 5( or Sun Blade 100 ) as media servers with 100Mb/s 
switched ethernet. Even with 10k$ per media server license from Veritas 
it needs less money for infrastucture.
Sun GE card is 64-bit PCI and needs something like 220/250/280/420/450....
and all these would do nothing during a day. I don't need to mention 
GE cost above 2000$ from Sun. 

I am serious to start using Linux boxes as Media Servers. 
I think I heard about Linux Media Server supported in 3.4.1
No expirience however. 

Thanks. 
> 
> I am trying to devise a solution to backup 1.5 terabytes of data each night.
> What solutions
> are most of the folks on the list using for similar configurations? We are
> debating sticking
> in a switched gigabit ethernet network, two media servers and four DLT8000
> drives per
> media server. The media servers will be Sun 220/420/250/450/280s. Has anyone
> devised
> a similar solution? By any chance does anyone have throughput figures from the
> 220/420/250/450?
> I am curious how many drives it will take to saturate the bus. Also, are there
> any calculations
> that need to be done to determine RAM/CPUs per system???
> 
> Thanks for any suggestions/thoughts/past experiences.
> 
> - Ryan
> 
> 
> 
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-- 
----
Andrew Shinkarev
Network Systems Specialist
Abbott Laboratories
(847) 9387559
shinkara AT pprd.abbott DOT com