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Browsing Posts tagged ESXi

ESXi – How to reset the root password

19 April 2012
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Reading Time: 2 minutesReset the root password with ESX 3.x was quite simple, just because the service console was a partition writable a live CD… With ESX 4.x it was a little more complicated (the service console was basically a vmdk). But with ESXi things are more complicated, due to the partition layout, that ESXi works in RAM and that all configurations files are stored in the banks it special archive files. The file containing the password hashes is called “shadow” and it is is contained in  a nested structure of archives inside the state.tgz file.

Highlights, VMware

Analysis of different hypervisors

21 March 2012
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Reading Time: 4 minutesI’ve read some posts (see in the bottom of this post for the references) and I notice how the  hypervisor comparison and choosing criteria are still a interesting trend and not only a marketing battle between different vendors (and maybe there will be more interest will be on this aspects with the release of Windows Server 8). But in several cases the comparison is limited to the hypervisor technical characteristics (and I’ve already written something about Hyper-V 3.0, XenServer 6.0 and RHEV 3.0) without considering (except in some cases) that the those are only one […]

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General Availability of VMware vSphere 5.0 Update 1

16 March 2012
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Reading Time: 2 minutesVMware has released the vSphere 5.0 U1 binaries that include the ESXi 5.0 Update 1 e vCenter Center (with his modules) 5.0 Update 1 (build 639890). Detailed information regarding resolved and known issues in the ESXi update can be found in the KB 2010823. For more infor about the update package, the compatibilty and the enhancements see the ESXi 5.0 Update 1 Release Notes. For more info about the vCenter update see vCenter Server 5.0 Update 1 Release Notes. The following information describes some of the enhancements available in this release of VMware ESXi: Support […]

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Using PHD Virtual Monitor with XenServer and vSphere

7 February 2012
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Reading Time: 4 minutesPHD Virtual Monitor is a comprehensive virtualization monitoring solution that gives you complete visibility across your entire virtual IT infrastructure at all levels including virtual, physical and application. So it not only a multi-hypervisors monitor tool (as described in the previous post), but also a multi-environments tool. This could be really interesting with Citrix XenServer environments where the monitoring feature are quite minimal (and without simple notification in the free edition): CPU and Memory, both for hosts and VMs; and from latest version also networking and disks (but disk only for VMs). Also the graphs […]

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Installing Dell OMSA 6.5 on ESXi 5

30 December 2011
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Reading Time: < 1 minuteThis is just a recap of some posts: Installing Dell OMSA 6.5 on ESXi 5 using VUM Installing Dell OMSA 6.5 on ESXi 5 using CLI Installing Dell OMSA Web Server in a VM Install Dell OpenManage on ESXi

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ESXi – Partitions layout of system disk

20 December 2011
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Reading Time: 3 minutesIn ESXi the partitions schema is automatically defined by the installation process and there is no way to modify it (you can only choose where install the hypervisor). There is a great post from Rickard Nobel (ESXi 5 partitions) that explain the structure of the partitions, their size and their purpose. But it does not explain how to get this information. To see the partition layout in ESXi 5, the fdisk command will not work on new GTP disk (this type is used for all new disks and for disks that are extended to more […]

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ESXi – Replace the vmware-cmd command

19 December 2011
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Reading Time: < 1 minuteAs you know, several commands from local CLI (via the ESXi shell or TSM technical support mode) are changed in latest version of ESXi (in the new ESXi 5 most are replaced by the new esxcli command). One command that was alredy replaced in ESXi 4.1 was the vmware-cmd command. A new vim-cmd must be used instead (as as described by William Lam in VMware vimsh and vim-cmd). The typical use of vmware-cmd command was get/change the state of a VM and register a VM. About the state of a VM, the VMware KB1014165 (Powering off […]

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