VMware vCloud Director 5.1.1 Released.

On 25h October, VMware Released a Minor update to vCloud Director software. this update has a number of fixes to various issues encountered in version 5.1 including.


  • The vCD Appliance now has sets net.ipv4.conf.all.rp.filter = 0 in the /etc/sysctl.conf file.  This fixes an issue with a loss of network connectivity that was observed with the 5.1 release.
  • Snapshots were unnecessarily created.  This occurred when fast provisioning was enabled and a copy of a vApp template across datastores was performed.
  • An exception would be generated in cases where an external network was created without any available DVportgroups.  The exception returned would look similar to:

Problem accessing /cloud/. Reason: could not load an entity:

  • Some changes were introduced into the Allocation Model with vCloud Director 5.1 to enable elastic VDCs.  With these changes, some customers had issues if they configured the vCPU to Mhz mapping too low which would result in VM performance issues for some initial VMs in the resource pool as the limit is set too low. If these same customer set the vCPU to Mhz mapping too high it would result in limiting the maximum number of VMs that can be provisioned in the pool significantly


Please don’t forget to check the release note here before the upgrade to identify all information needed including known issues and workarounds.


Happy Upgrading.

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