VMware releases vSphere 5.5 Update 3

At September 16 VMware released vSphere 5.5 Update 3.

Before rushing to install this update read this post. Many people reported about crashing VMs at a snapshot delete after installing Update 3. The only fix is to downgrade to Update 2.

Update 3 of VMware ESXi 5.5 contains the following enhancements:

    • Log Rotation Enablement Log rotation for vmx files allows you to reduce the log file sizes by specifying the size of each log and the number of previous logs to keep.
    • Certification of PVSCSI Adapter PVSCSI adapter is certified for use with MSCS, core clustering and applications including SQL and Exchange. This creates performance gains when moving from LSI Logic SAS to PVSCSI.
    • Support for Next Generation Processors In this release we will continue our support for next generation processors from Intel and AMD. Please see the VMware Compatibility Guide for more info.
    • ESXi Authentication for Active Directory ESXi is modified to only support AES256-CTS/AES128-CTS/RC4-HMAC encryption for Kerberos communication between ESXi and Active Directory.

ESXi 5.5 U3 Release Notes

ESXi 5.5 U3 Download Page

What is new in vCenter Server 5.5 Update 3

  • vCenter Server database support: vCenter Server now supports the following external databases:
    • Oracle 12c R1 P2 (
    • Microsoft SQL Server 2012 Service Pack 2
    • Microsoft SQL Server 2008 R2 Service Pack 3
  • Increased guest operating system support: vCenter Server has added support for the following guest operating systems.
    • CentOS 7.0
    • Oracle Linux 7.0
    • Ubuntu 14.10
    • Windows 10
    • RHEL 6.6
    • RHEL 7 .1
    • CentOS 7.1
    • Oracle Linux 7.1

vCenter Server 5.5 U3: Release Notes

vCenter Server 5.5 U3 Download Page

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