Davoud Teimouri

Virtualization & Datacenter

Category: ESXi

[Review]: vSphere 6.5 Update 2

vCenter 6.5 Update 2

Today, VMware has announced vSphere 6.5 U2 with lot of new features and fixes on components specially on ESXi and vCenter. vSphere 6.5 U2 has some new features that backported from vSphere 6.7 . VMware recommended upgrading vSphere 5.5 to vSphere 6, 6.5, so vSphere 6.5 U2 is good choice for upgrade virtual infrastructure with less impact, because many hardware that supporting vSphere 5.5, don’t compatible with vSphere 6.7 . Upgrading to vSphere 6.5 Update 2 from vSphere 5.5 requires a minimum version of vSphere 5.5 Update 3b prior to performing the upgrade.

4,465 total views, 14 views today

[How To]: Change Linux IP Address via PowerCLI


How To Change Linux IP Address via PowerCLI There is some reason that you want to change IP address on virtual machines as an example, moving virtual machines to a new VLAN or port-group or moving them to another site or replicate virtual machine to an offsite recovery site. Changing IP on machines one by […]

7,446 total views, 16 views today

[PowerCLI]: Change Local Account Password on ESXi


Change Local Account Password Usually, administrators using same password on all servers for easier management and there is some security reasons to change the password periodically such as defining an expire time for password or when one of members is left company. Changing user’s password or many users password on a single host is too […]

10,453 total views, 28 views today

ESXi host fails with a PSOD due to an Intel Virtualization Technology!

I have read a KB on VMware Knowledge Base and it says that an Intel Virtualization Technology can be cause of PSOD. This is little funny because ESXi will be affected by wide range of Intel Xeon processor family: Intel® Xeon® Processor 55xx Series Intel® Xeon® Processor 56xx Series Intel® Xeon® Processor 65xx Series Intel® […]

1,670 total views, 18 views today

ESXi Virtual Appliance

As you may know, you can install hypervisors on virtual machines for testing purpose. When you had installed ESXi on virtual machine, you did nesting virtualization. But think about installation process, any installation needs around 20 minutes and if you cloned a ESXi machine, it will be not worked properly on other virtual machine and […]

491 total views, no views today

HPE Custom Image for VMware vSphere 6.0 Update 2

VMware vSphere 6 Update 2 has been released by VMware past days and now, HPE (Hewlett-Packard Enterprise) customized ESXi image has been released for HP servers. You can download it form this link: HPE Custom Image for VMware vSphere 6.0 Update 2 Another vendors also released their customized image, you can download the images from […]

3,855 total views, no views today

HP Integrated Lights-Out 3 (iLO 3) – ESXi VM’s Showing 100% CPU Usage While Host CPU is Low

If you have read HP or VMware documents about power management on ProLiant servers, both have suggested that configure power management to Static High Performance. I did it on all my ESXi servers and everything was good. But I have performance problem on some of G7 servers, I have checked all factors but I couldn’t […]

2,055 total views, no views today

Memory Addressing Limits for ESXi 5.1.x and 5.5.x

The following table describes the Memory Addressing Limits for ESXi 5.1.x and ESXi 5.5.x:     Parameters ESXi Release 5.1.x 5.5.x Maximum Physical Address (MAXPA) 4 TiB 16 TiB Maximum DRAM Capacity (within MAXPA) [1] 2-TiB 4-TiB/6-TiB Maximum Physical Address for Non-Prefetchable PCI BAR 4 GiB [2] 4 GiB [2] Maximum Physical Address for Prefetchable […]

865 total views, no views today

A virtual machine loses network connectivity after vMotion

Symptoms A virtual machine loses network connectivity after vMotion. When you use tcpdump to analyze packet traffic, you see that a RARP request is not sent after the virtual machine has been moved via vMotion to the destination host. If you set the Load Balancing policy in the vSwitch properties to Notify Switches, the RARP request is sent after […]

1,486 total views, no views today

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