Skip to main content

VMware vsphere 5.5

VMware has released the latest version of vSphere in VMworld 2013 .Release 5.5 includes a number of significant improvements as well as new features over the past releases. Lets have a look.

What is new?
  • Application HA: The HA feature extended to applications like MSSQL,Tomcat,IIS,TC server runtime etc.It can monitor applications and take actions liek restarting the application, resetting the VM , raise an alarm or send email notifications .A vFabric Hyperic should be installed in each guest OS.Also an AppHA virtual applicance and Hyperic server is required for thsi to work
  • Reliable memory Technology:This enables ESXi to analyze the reliability of memory ,predict failures and stop using unreliable parts of memory. It will also help put critical processes like watchdog and hostd in the reliable area. 
  • Flash Read Cache: This was previously avaliable in Beta as vFlash. This technology leverages the local flash devices reources in a host to provide a clustered flash resources for VMs and Hosts.These flash devices could be PCIe flash cards or SAS/SATA SSD drives.Flash resources can be used for VM I/O request read caching as well as storing the host swap file.
  • Big Data Extension: A big-data plugin is introduced to manage enterprise Hadoop clusters.It provides an graphical interface for easy administration of hadoop clusters running in vSphere.
  • Hot plug SSD PCIe devices: Now you can hot plug SSD PCI express devices just like Sata or SAS Hard drive.
  • Enhanced DPM using policy setting: You can  finegrain your power management using the following policies

  • VM hardware version 10: The latest VM hardware comes with enhancements like advanced host controller interface(AHCI). It comes with a new Virtual SATA controller which supports upto 30 devices per controller and a total of four controller per VM.It also provides graphic acceleration for Linux OS including Ubuntu 12.04 and later,Fedora 17 & later and RHEL 7

What is changed?
  • Maximum VMDK size increased from 2 TB to 62 TB for VMFS5 and NFS
  • Removed the 32 GB physical memory limitation of ESXi free version
  • Maximum RAM per host increased from 2 TB to 4 TB
  • Virtual CPUs per host increased from 2048 to 4096
  • Logical CPUs per host changed from 160 to 320
  • Extnded support for AMD and Intel GPUs
  • Support for windows 2012 guest clustering
  • Support for 40 Gpbs NICs


Popular posts from this blog

Cloud Security - Risk factors

Cloud security is a major consideration for enterprise wide cloud adoption, especially public cloud. This is part 1 of a serious of blog posts , where I am planning to pen down the different dimensions of Cloud security, starting with the risk factors of cloud adoption. The various attributes of security risks  involved in the process can be summed up as follows: ENISA* recommends the following  risk areas to be taken into account, while embarking on a cloud adoption journey

Windows server 2012: where is my start button??

If you have been using Windows Server OS for a while, the one thing that will strike you most when you login to a Windows server 2012 is that there is no start button!!.. What??..How am I going to manage it?? Microsoft feels that you really dont need a start button, since you can do almost everything from your server  manager or even remotely from your desktop. After all the initial configurations are done, you could also do away with the GUI and go back to server core option.(In server 2012, there is an option to add and remove GUI). So does that mean, you need to learn to live without a start button. Actually no, the start button is very much there .Lets start looking for it. Option 1: There is "charms" bar on the side of your deskop, where you will find a "start" option. You can use the "Windows +C" shortcut to pop out the charms bar Option 2: There is a hidden "start area"in  the bottom left corner of your desktop

Install nested KVM in VMware ESXi 5.1

In this blog, I will explain the steps required to run a nested KVM hypervisor on  Vmware ESXi. The installation of KVM is done on Ubuntu 13.10(64 bit). Note: It is assumed that you have already installed your Ubuntu 13.10 VM in ESXi, and hence we will not look into the Ubuntu installation part. 1) Upgrade VM Hardware version to 9. In my ESXi server, the default VM hardware version was 8. So I had to shutdown my VM and upgrade the Hardware version to 9 to get the KVM hypervisor working. You can right click the VM and select the Upgrade hardware option to do this. 2)In the ESXi host In /etc/vmware edit the 'config' file and add the following setting vhv.enable = "TRUE" 3)Edit the VM settings and go to VM settings > Options  > CPU/MMU Virtualization . Select the Intel EPT option 4) Go to Options->CPUID mask> Advanced-> Level 1, add the following CPU mask level ECX  ---- ---- ---- ---- ---- ---- --H- ---- 5) Open the vmx