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VMware vCenter Server 5.5 Update 2d released


VMware released the vCenter Server Update 2d fixing some bugs and changing some default DRS behaviors.

No updates for ESXi hosts has been released keeping the build number the same.

New builds number

  • vCenter Server 5.5 Update 2d | 27 JAN 2015 | Build 2442329
  • vCenter Server 5.5 Update 2d Installation Package | 27 JAN 2015 | Build 2442328
  • vCenter Server Appliance 5.5 Update 2d | 27 JAN 2015 | Build 2442330


Resolved issues

vCenter Single Sign-On

  • VMware Directory Service consumes excessive memory
  • Backup and restore of vCenter Single Sign-On database might not replicate the data between primary and secondary nodes correctly
  • Attempts to logout through the vCloud Automation Center UI might fail


  • Network Interface Cards of virtual machines in disconnected state might get ejected during vMotion
  • vCenter Server, vSphere Client, and vSphere Web Access
  • Virtual machines on ESXi hosts containing NSX Endpoint virtual machines might not power on
  • Update to SUSE Linux Enterprise Edition Server in vCenter Server Appliance to address time zone changes
  • vpxd reports massive logging
  • Accessing the Storage View tab fails with the error
  • Scheduled tasks cannot be created for a different time on the same day in vSphere Web Client
  • The VMware VirtualCenter Server service fails intermittently
  • HTML console cannot be launched with custom port
  • Datastore browser in vSphere Web Client does not overwrite existing files
  • VMware VirtualCenter Server service fails

Virtual Machine Management

  • Cloning or deploying deploying virtual machines over the network causes performance degradation
  • Alert event is not triggered when one VM has multiple vNICs with same MAC address

vMotion and Storage vMotion

  • The default behavior of DRS has been changed to make the feature less aggressive during cluster upgrade


Changes in DRS

The default upper limit of Distributed Resource Management (DRS) while putting hosts on maintenance mode during a cluster upgrade is 150%.

The new update includes a fix that allows users to override the default and can specify the range between 40% and 200%. If no changes are made, the default value 150% is used during cluster maintenance mode.


The vCenter Server Update 2d can be downloaded from VMware website. Check the Release Notes for additional info.