Lan or San pin group in UCSM

[Hele Du]

Hi everybody,

    I am confuse with the vNic and vHBA template setting in  UCSM. Could anyone help me ?

    From vNic template, we can define the Fabric ID and pin group.

    If I define a pin group which is go to Fabric B, and choose the fabric A in vnic template setting.

    How does the traffic goes on?

    which FI does the vnic will create on? 

    As far as i know, pin group is a static pinning , and fabric id is a dynamic pinning.

    I attached a screenshot.

    In "fabric ID" , I chosen fabric A and tick "enable failover"

    In "pin group", i selected specific "PIN to FIB"

[Walter Dey]

Just a General comment:

- I would never recommend to do static pinnning. Why ? it is great to control where your traffic goes, however, if your Installation becomes bigger (whatever that means), it's a Management nightmare; I know not a single customer that is using it therefore. 

- for Ethernet, there is a reshuffling mechanism in place, that distributes outgoing traffic equally over all outgoing links; not available for FC.

- the use of the Failover flag has been discussed in this Forum extensively. The recommendation: if your OS supports loadbalancing and Failover, then let the OS do it, and don't enable Hardware Failover; eg. ESXi, W2012,....

- Never ever use OS Failover AND Hardware Failover enabled; this can lead to ugly behaviour.

Cheers

Walter.

[Hele Du]

Thanks Wdey.

       Goog to see you again.

       Thank you for your  comment.From your comment the static pinning was a bad choose.

       If choose the dynamic pinning and select a pin group at same time in vNIC template ,what will happen?

[Walter Dey · Accepted solution]

Static pinning will overwrite dynamic pinning; however, if you have a mixture of static/dynamic pinning with different Interfaces of a Service Profile, then a particular uplink is not used exclusively for static pinning, it is shared with both pinnings; this essentially means, either everything should be static pinning nor nothing (=dynamic). Another argument for not using static pinning.

I hope this is clear ?

[Hele Du]

Thanks Wdey,

         I`m already clear about this issue , thanks again.

[Hele Du]

Hi Wdey,

  As far as I know, FI uses adapter FEX to acommpuish VIF, when I choose "Fabric ID-A" in vnic setting , it will cerate a VIF on FIA.

   Return back to this question, If I chosen the "Fabirc ID A" and select a specific Pinning group to FIB, the VIF will cerate on which FI?

[Walter Dey]

This would be a weird (wrong) configuration; a vnic attached to Fabric A, would use a pin Group using a North bound link on FI-A.