English version of my posts.
You may know there are 3 vulnerabilities recently noticed by industry. Long story to short, kernel address space exposed to hackers when processors running user space code. It’s not only impact to Intel processors but also AMD and ARM. CVE-2017-5715 is a hardware issues that only apply certain firmware can fix the vulnerabilities. CVE-2017-5754 and CVE-2017-5753 … Read more
The latest version of VMware Remote Console is 10.0.2. There should be some functions changing in the release. You may see following symptoms after upgrading to the version. The virtual machine console screen is black. Console screen works properly if you just hit buttons on VMware Remote Console window. The console screen freeze once VMware … Read more
If you are using Microsoft Hyper-V 2012 and “Differencing Disk” you may get trouble when you want to move whole VMs to another location due to “Parent Disk” migration is not so easy. Following is the steps to move parent disk on Hyper-V server. Preparation I assume you want to move bunch of virtual machines. First … Read more
Just quick notes. I saw following error when do storage vMotion. Cannot Complete File Creation Operation. When check /var/log/hostd.log. I saw following errors: 2017-11-28T02:51:04.476Z info hostd[76A80B70] [Originator@6876 sub=Vimsvc.TaskManager opID=459515D4-000040D6-2d-cf-d4-7817 user=vpxuser:contosotestuser] Task Created : haTask–vim.host.OperationCleanup 2017-11-28T02:51:04.476Z info hostd[772C2B70] [Originator@6876 sub=Libs opID=459515D4-000040D6-2d-cf-d4-7817 user=vpxuser:contosotestuser] CopyFromEntry: Hostlog_Dump: Hostlog /vmfs/volumes/598700ee-ec 2017-11-28T02:51:04.476Z info hostd[772C2B70] [Originator@6876 sub=Libs opID=459515D4-000040D6-2d-cf-d4-7817 user=vpxuser:contosotestuser] UUID: 28dbb1b5-a9d8-e311-1061-03300000002d 2017-11-28T02:51:04.476Z … Read more
I got two exactly same hardware, installed same ESXi version. Somehow cloning from other ESXi to one server was working, but another one always failed at 33%. It only impacts to existing VM cloning but not impact to new created virtual machines. I spent lot time on the troubleshooting. We replaced cables, switch ports, reinstalled … Read more
I searched internet but hard to find an easy way to get used space on Windows Server. Following is two lines PowerShell command to get used space on Windows 2012 R2 Server. Get-WmiObject win32_logicaldisk | select deviceid,@{n=”Size”;e={[math]::Round(($_.size/1GB),2)}},@{n=”Used Space”;e={[math]::Round((($_.Size-$_.FreeSpace)/1GB),2)}}
Following are offline or portable executives of some IT tools. I’ll continue update the list whenever I find a new one. Google Chrome offline installer Flash Player offline installer for Chrome Flash Player offline install for FireFox Flash Player offline update for IE 11 on Windows 10 (Fix IE crash problem when login to vSphere … Read more
This error may only appears on legacy ESXi hosts. The cloning of virtual machine throws error at 33% of the task. Clone virtual machine Could not complete network copy for file /vmfs/volumes/5xxxxxxe-4fb01111-3911-0ccxxxxxac38/TEST/TEST.vmdk Copying Virtual Machine files You may see following logs on vpxa.log of source ESXi host. 2017-11-02T02:51:20.238Z [FFF43B70 info ‘Libs’ opID=812BF517-00000667-f0-34-64] SSL: syscall error … Read more
To achieve Auto Deploy I’d like to control PXE boot process. I want the vNICs of management network can do PXE boot only. That’s because DHCP server may learns incorrect MAC address of management network if ESXi host boots up by non-management network NICs. The psychical servers are easy to disable PXE boot feature of … Read more
There are plenty of scripts to find tagged ESXi hosts. But what if you want to find out all ESXi hosts not be tagged? Following is a simple script: Compare-Object ((Get-VMHost | Get-TagAssignment).Entity | select -uniq) (Get-VMHost) The output is similar like following: InputObject SideIndicator ———– ————- esx1 => esx2 => esx3 => … Read more
