nicholasfarmer
Limp Gawd
- Joined
- Apr 19, 2007
- Messages
- 238
While the reach of this post might be small, I know a few important ones do read them.
Does anyone use Distributed Switches with port groups configured with the Load Based policy and on vSphere v6?
If you do....I have reason to believe that you should change to a different load balance policy ASAP.
Edit:
I love the Physical Nic load based policy. I have it set every where, even my home lab. Until I hit a bug....
This bug does not exist in 5.5.
I cant find the exact KB (if its even published yet.)
Until then, anyone on vSphere 6 (ESXi 6) and you are running "Physical NIC load" based load balance policy, please reach out to your support folks or TAM about the current issue/bug.
Here is a quick KB about the different policies:
http://kb.vmware.com/kb/1004088
I want to say specifics but I don't know if this is supposed to be a dumb secret where customers have their v6 deployments explode and call support.....
It could also have some specific hardware associated to it but "I" don't think it does.
I'll update again if support can provide me with the KB and details.
Edit #2:
I was approved to share!
http://kb.vmware.com/kb/2124725
Important Snip from above URL : "•When using load balancing based on physical NIC load on VDS 6.0, if one of the uplinks is disconnected or shut down, failover is not initiated."
-- The issue is fixed in v6.0u1
Let me tell you that using "physical Nic load" will cause you more problems than reported in that KB. I've had hosts crash/PSOD, vpxa chain crash so the host drops out of vCenter and VMs HA, and the best case was VMs drop off the network because a vDS uplink was removed and VMs did not fail over to another usable link.
Your mileage may vary. I had the enjoyment of replacing 65 corrupted vDistributed Switches so I figure I would share that entertainment.
-- Again.. this is not a bash against using Physical Nic Load.... I'm just saying its broken atm so please patch or use something else until you are patched.
Does anyone use Distributed Switches with port groups configured with the Load Based policy and on vSphere v6?
If you do....I have reason to believe that you should change to a different load balance policy ASAP.
Edit:
I love the Physical Nic load based policy. I have it set every where, even my home lab. Until I hit a bug....
This bug does not exist in 5.5.
I cant find the exact KB (if its even published yet.)
Until then, anyone on vSphere 6 (ESXi 6) and you are running "Physical NIC load" based load balance policy, please reach out to your support folks or TAM about the current issue/bug.
Here is a quick KB about the different policies:
http://kb.vmware.com/kb/1004088
I want to say specifics but I don't know if this is supposed to be a dumb secret where customers have their v6 deployments explode and call support.....
It could also have some specific hardware associated to it but "I" don't think it does.
I'll update again if support can provide me with the KB and details.
Edit #2:
I was approved to share!
http://kb.vmware.com/kb/2124725
Important Snip from above URL : "•When using load balancing based on physical NIC load on VDS 6.0, if one of the uplinks is disconnected or shut down, failover is not initiated."
-- The issue is fixed in v6.0u1
Let me tell you that using "physical Nic load" will cause you more problems than reported in that KB. I've had hosts crash/PSOD, vpxa chain crash so the host drops out of vCenter and VMs HA, and the best case was VMs drop off the network because a vDS uplink was removed and VMs did not fail over to another usable link.
Your mileage may vary. I had the enjoyment of replacing 65 corrupted vDistributed Switches so I figure I would share that entertainment.
-- Again.. this is not a bash against using Physical Nic Load.... I'm just saying its broken atm so please patch or use something else until you are patched.
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