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Conference 7.286::fddi

Title:	FDDI - The Next Generation

Moderator:	NETCAD::STEFANI

Created:	Thu Apr 27 1989
Last Modified:	Thu Jun 05 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	2259
Total number of notes:	8590

1978.0. "VAX4000: FDDI vs. Ethernet Cluster Performance?" by TENNIS::KAM (Kam WWSE 714/261.4133 DTN/535.4133 IVO) Fri Mar 08 1996 19:32

I recieved the following inquiry via email from one of our Distributors.  
Any insighs would be appreciated.
    
	Regards,

	 kam

"I was wondering if you may check your sources on a couple of throughput
specifications for me.

I have a customer who has two VAX 4000's and would like to cluster them
over FDDI.  The only way to do that is over the a Q-bus FDDI adapter
(DEFQA).  I know the published spec on that adapter is 1.8MB/s, but do
you have any real numbers on what I can bump through it?

If we were to use the embedded ethernet on the VAX 4000 (SGEC), what is
the real life throughput on that?  The published spec is 1.2MB/s.

The customer would like to shadow 40GB of storage across FDDI, do you
know of anyone who has done that?  Any help you can offer is
appreciated."

Also posted in Cluster conference.

T.R	Title	User	Personal Name	Date	Lines
1978.1		STRWRS::KOCH_P	It never hurts to ask...	`Fri Mar 08 1996 22:35`	3
	13Mbps. That's it. DSSI is faster, 4MBps. 2 DSSIs, 8MBps, etc.