| 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 |
Hi, I need to answer a customer the following questions: 1. The DEC FDDIcontroller/PCI DAS/MMF can work as SAS? (I guess it can.) 2. What do I have to make it work as SAS? Is it automatic, using junpers, via software, etc?. (this is the key point) Any info is wellcome. Jose
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 1600.1 | I'll try to make it hard. 8^) | CGOS01::DMARLOWE | Have you been HUBbed lately? | Fri Feb 24 1995 12:16 | 4 |
Just plug one side in and that's all there is to it. It's all done at
the chip level.
dave
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| 1600.2 | NETCAD::STEFANI | Welcome to the Revolution! | Fri Feb 24 1995 12:42 | 17 | |
>>Just plug one side in and that's all there is to it. It's all done at
>>the chip level.
That's true, but there is a difference. On the DEFEA-UA and DEFEA-AA
SAS EISA adapters, the parent card is always an S port. On the
DEFEA-DA DAS EISA adapter, if the daughter card is plugged in you'll
have A and B ports. If you unplug the daughter card, the parent card
becomes an S port.
On the DEFPA adapters, they are all single slot and there are no
daughter cards. The DEFPA-DA DAS PCI adapter *always* has an A and B
port. So if you plug one port into an M port on a concentrator, it
will function like a SAS, but it will not be an S port. In this kind
of configuration, this is just a semantic difference, but it's a
difference nonetheless.
/larry
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