8 Posts
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1275
Deploying a Vxrail cluster with a temporary TOR switch
HI Vxrail folks
We plan to install a Vxrail 3 nodes cluster with 04 10 Gbe SFP+ ports each , the 02 TORS switches are not yet purchased and will take some time to be on site , in the mane time I have one switch that meet the requirements and want to configure it as a temporary TOR and replace it by the 02 official TORs when they will be ready , of course with a down time ,
My first question is their any risk when replacing the temporary switche later supposing that the configuration of vlan ports , STP, interlink , uplink etc on the official switches will be donne properly with nochange?
My second question , I dont have suffisant ports to connect all the 03 nodes ports to the temporary TOR (have only 10 SFP+ instead of the 12 needed with a 04 port deployment , can I deploy the cluster with 02 missing uplinks ?
Hope that someone can help me on this scenario
Have a good day
Regads
DELL-Naoyuki K
4 Operator
4 Operator
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1.8K Posts
1
November 3rd, 2021 18:00
i'm not sure that I understand your situation correctly.
The only thing I can say, is that it is hard requirement there are enough Switch ports if you install VxRail.
If it's with 4 * 10GbE option, TOR switch must have at least 4 ports available for each node.
if it's with 2 * 10GbE option, TOR switch must have at least 2 ports available for each node.
So, If there are only 10 ports available on TOR, you cannot configure 3-node VxRail with 4 * 10 GbE option because that require 12 ports available in total.
Whereas, you can deploy VxRail with 2 * 10GbE (remaining 2 ports are free for future use) because it only requires 6 ports in total for installation..
TOR Switch can be replaced after VxRail deployment unless it is using Smart Fabric.
DELL-Sam L
Moderator
Moderator
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7K Posts
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November 3rd, 2021 11:00
Hello dzmoon,
Here is the link to VxRail Network Planning Guide, & based on this you will not meet the minimum requirements for your cluster. https://dell.to/3GNjtha
Second it is not wise to deploy a cluster and you don’t have any uplinks configured. Here is also a link to some other guides that are useful as well.
https://dell.to/3GMiA8u
dzmoon
8 Posts
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November 9th, 2021 01:00
Hi all
Thanks for your answer, that clear for me now can't setup a cluster without enough ports to connect all the needed ports ( in my case i need to use all the 04 ports not the 02 option) , and it is possible to change the TOR switch later in case of we need it .