Virtual Switch in Solaris LDOM

UNIX Solaris
1

Hi,

Our existing environment is having primary domain and 3 guest domains are running over it. See the attached image.

Now we want to add a new primary virtual switch and move LDOM3 to be connected with new primary switch.

So, I am not sure how to achieve this because. If I remove the existing virtual switch then all the LDOM can not be accessed. Can someone help in this matter.

2

Hi,

There is some excellent documentation on the Oracle site, I suspect that this article would be a good place to start.

Regards

Gull04

3

I'm sure the picture is wrong.

You just need to add a vnet to a new ldom. You don't add vsw to ldoms.
Is your VSW an aggregation perhaps, created over an aggregated interface ?

If not, then you will not be redundant in case of NIC or switch failure.

Best regards
Peasant.

4

Hi,

Actually the figure is related to our UAT environment where we are not running any redundancy.

UAT LDOM are standalone and they are not as cluster.
So, I am wondering if I can just add a new virtual switch and then attach one of the LDOM to work with that switch.
If yes, how to achieve this?

5 
ldm add-vnet vnet0 primary-vsw0 uatenv

You will now have net0 inside your ldom uatenv which is using primary-vsw.
Of course, you will still need to add disk devices.

In case of card/port failure or a switch failure, all the ldoms will lose network connectivity.

Hope that helps.
Best regards
Peasant.

1 Like
6

Thanks for your reply.
Eventually I figured out the solution.

Here it is..

  1. Add a new virtual switch
  2. Plumb the interface
  3. Assign IP and up the interface
  4. Modify the existing vnet so that it can listen the new virtual switch
    ldm set-vnet vswitch= primary-vsw1 vnet0 ldom03

vnet0 is interface for old switch.

Later after doing tests, I will again set vnet0 to old switch.

I hope it should work.

Thanks for your help.

7

I don't see a point in such setup not involving multiple network ports for bandwidth and failover.
Why would you have a server with multiple network ports and use one port for all your virtual machines ?

Aggregation is supported on vsw (vsw on top of aggr created interface).
With vlan tagging you could create multiple aggr interfaces with increased bandwidth and reliability hardware wise.

Also, a version of your operating system, ldom software and switch type would greatly help when initially asking help.

8

Hi,
Thank you for your reply.

Actually this not a cluster environment, only three LDOM are running as individual.

It is LDOM v2.0 and Solaris 10 x64 on SPARC.

I need to perform some tests using the setting which I described earlier.

Thanks,
Praveen