Hi all,
Sorry previous mail got scrapped due to HTML pictures so  now with text
pictures
I just cant clear a doubt about IB.
In the first figure given below the max speed that can be obtained
between the client and the IO storage is 2Gb/s

Client --------|
Client --------|                        |--- FC Switch---|
  .                |                    |                    |
  .                |---FC Cables--|                  |-----I/O storage
  .                |    Each client     |                  |
Client --------|        connected       |--- FC Switch---|
                        To both switch


                                       Figure 1

 

While in the figure given below the client to IB FC gateway speed is >
10 GB/s and from Gateway to I/O storage is 2GB/s and if port aggregation
is applied at gateway then 4GB/s. So the total effective speed from
client to I/O storage can max be reached at 4GB/s

           IB cables  
Client --------|
Client --------|                                     |----- FC
Switch---|                                              
  .                |    IB cables                    |
|                               
  .                |------------IB FC ------ |              |---FC
Cables------I/O storage
  .                |              Gateway/Router |
|       
Client --------|                                     |----- FC
Switch---|      


                                                Figure 2

 

So can anyone explain me am I correct in my approach? Are there any
other advantages in shifting from figure 1 architecture to figure 2
architecture?

It does not seem any advantageous in shifting from FC SAN to IB FC SAN
through such a pattern?

Can anyone help me in deciding about this??

 

 

 

Thanks in advance

 

Mohit Katiyar
_______________________________________________
openib-general mailing list
[email protected]
http://openib.org/mailman/listinfo/openib-general

To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general

Reply via email to