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networking

VirtualCenter 2.5 Update 3 and HA networks

Duncan Epping · Oct 4, 2008 ·

I wrote about a new patch for ESX(i) 3.5 yesterday and the fact that VirtualCenter 3.5 Update 3 was mentioned. Well today VirtualCenter 2.5 Update 3 has been released! You can pick it up here.

I think the most important fixes are the ones for HA. With Update 2 VM started checking the subnets of the heartbeat network for HA. If these weren’t compatible than HA bailed out. With Update 3 a new advanced option has been introduced ,”das.bypassNetworkVerification”. When this setting is set to “true” the Network compatibility check isn’t done and thus it’s possible to have an incompatible but routable HA heartbeat network.

Another important one is that as of U3 it’s possible again to delete HA advanced options, this problem was introduced in U2 and has been fixed.

An error that was also much talked about on the VMTN forum was the fact that VM’s weren’t vmotioned when maintenance mode was entered even if the admision control was disabled. This error has also been fixed.

These are three most important fixes in U3 in my opinion. Be sure to update and read the release notes for more info and fixes. Please not that the plugins for Update Manager and Converter has also been updated.

For those that didn’t go to VMworld…

Duncan Epping · Sep 16, 2008 ·

There are a couple of great articles out there which are definitely worth reading:

  • Colin McNamara – Cisco releases Nexus 1000v virtual switch for VMware
  • Scott Lowe – BC2621: Fault-Tolerant VMs in VI: Operations and Best Practices (live blogging)
  • Scott Lowe – TA2668: VMware ESX Architectural Directions (live blogging)
  • Rich Brambley – TA3807: VirtualCenter Directions (live blogging)

Cisco port-channel configuration for VMware

Duncan Epping · May 6, 2008 ·

My colleague Rene Jorissen just posted a config example for a port-channel and trunk configuration for VMware. So for those interested in networking check it out.

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About the Author

Duncan Epping is a Chief Technologist and Distinguished Engineering Architect at Broadcom. Besides writing on Yellow-Bricks, Duncan is the co-author of the vSAN Deep Dive and the vSphere Clustering Deep Dive book series. Duncan is also the host of the Unexplored Territory Podcast.

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