07-19-2017 03:46 PM
Hello People, I have TWOxMDS9710 (DS-X9710-FAB1) and TWOxMDS9706 (DS-X9706-FAB1), both of them support unitl 6 Crossbar Switching
MDS9710 with 4 module DS-X9448-768K9 and want to expand to 5 plus a
right now I have 3xDS-X9710-FAB1
NEW SWITCH
MDS9706 with 3 module DS-X9448-768K9
Right now have 3xDS-X9706-FAB1
Two supervisor DS-X97-SF1-K9
How I know if this enoug and dont need more cross bar?
Solved! Go to Solution.
07-20-2017 12:47 PM
Found this: https://www.redbooks.ibm.com/Redbooks.nsf/RedbookAbstracts/tips1256.html?Open
regarding MDS 9706:
Table 1. Number of Fabric Modules needed according to ports running at 32 Gbps performance in a 48-port 32-Gbps linecard
# of ports | Running at (Performance) | # of fabric modules needed | Restrictions |
24 | 32 Gbps | 3 | Other 24 ports shut down |
32 | 32 Gbps | 4 | Other 16 ports shut down |
40 | 32 Gbps | 5 | Other 8 ports shut down |
48 | 32 Gbps | 6 | No restrictions |
07-20-2017 06:07 AM
See the following document
http://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/hw/9700/mds_9700_hig/overview.html#Supported%20Components
The Cisco MDS 9710 Director supports up to six crossbar fabric modules. The crossbar fabric module (DS-X9710-FAB1) is designed specifically for the Cisco MDS 9710 Director. The crossbar fabric modules are installed vertically in slots 21 through 26, numbered from left to right, at the back of the chassis behind the fan modules. A minimum of 3 crossbar fabric modules are required to deliver full line rate and bandwidth for the switch. A fourth crossbar fabric module is required for N+1 protection.
07-20-2017 08:22 AM
Walter, thank you very much.
I saw that information, With the MDS 9710 and we will acquire the 4 crossbar to have the N + 1.
But at traffic / bandwidth level we have a way to see the current consumption / counters and see if it is required to put an additional one. My SAN is very busy and we have a Port-channel between the two rooms. That's why my concern.
With respect to the MDS9706 that will be new equipment to replace my old MDS9513, I get nothing that indicates the minimum or how many crossbar I need to have the N + 1.
Do you have any idea with this model?
07-20-2017 12:47 PM
Found this: https://www.redbooks.ibm.com/Redbooks.nsf/RedbookAbstracts/tips1256.html?Open
regarding MDS 9706:
Table 1. Number of Fabric Modules needed according to ports running at 32 Gbps performance in a 48-port 32-Gbps linecard
# of ports | Running at (Performance) | # of fabric modules needed | Restrictions |
24 | 32 Gbps | 3 | Other 24 ports shut down |
32 | 32 Gbps | 4 | Other 16 ports shut down |
40 | 32 Gbps | 5 | Other 8 ports shut down |
48 | 32 Gbps | 6 | No restrictions |
07-20-2017 04:36 PM
Walter thank you, that link was excelent.
all doubst clear.
regards.
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