The Technology Chronicle

In this blog, I will explain the process of creating an additional local SR in XenServer. In this scenario, there is an additional hard disk present in the server which I plan to add as a local SR in addition to the existing Local storage First you need to identify which disk is being currently used for your existing local SR, so that it is not accidentally deleted 1)SSH to your server using putty type the command xsconsole In the console that is displayed go to Disks & Storage repositories -> Current Storage Repositories You need to locate your current local repository and view the properties on the right pane Note down the scsi ID 2)Type the following command #ll /dev/disk/by-id Note down which device the ID maps to. In this case it is sda3.So that is your present local SR Also you need to note the SCSI id of the disk that you are planning to use for the new SR. In my case it is sdb 3)Next step is to create the new SR. You need run

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