English version of my posts.
I searched internet but there is no more information about this specific error message. When you upgrade to Windows Server 2012 R2 or 2016. You may see following error message: Windows won’t install unless each of these things is taken care of. Close Windows Setup, take care of each one, and then restart Windows Setup … Read more
I built a simple Auto Deploy environment by vSphere 6.5 on nested environment. I created virtual ESXi hosts on a physical ESXi host to do the testing. The whole configuration was smoothly, I’m impressed Auto Deploy can be implemented in few hours. One thing bothered me was networking. New ESXi hosts cannot get IP addresses … Read more
You may not able to remove NetApp folders after uninstall NetApp Virtual Storage Console for VMware. The reason is customized fonts are still loaded by Windows. You need to delete all fonts values mapped to NetApp VSC folder in Windows register HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionFonts.
Noticed a interesting limitation on VMware virtual machines. If you configure multiple SCSI controllers and distribute more than 8 virtual disks. You may experience randomly OS boot up failure when power cycle VMs. Only last 8 disks with higher SCSI ID present in boot order settings of BIOS. You cannot choose the disks with lower … Read more
Reporting is important to management. To be a IT Pro, you may need to run regular reports for management. Some reports may be generated time consume. vRealize Operations Manager is an alternative to create customized reports. It’s a powerful product to organize data and create PDF or CSV files on scheduled intervals. I recommend have … Read more
I was trying to update one Windows Server 2016 by standalone patch file. Somehow nothing happened after I double click the installer file. That’s because Windows Server 2016 prevent execute the file due to it’s download from internet. The quick fix is right click the file – Properties – Check Unblock – Click OK button. … Read more
I used to see memory degrading on Cisco UCS blades. But less see on HPE blades. I thought it maybe quality control problem of Cisco manufacture. Today I read two articles in Cisco website, it explains why we see memory degrading and how it works. I attached the articles below. Managing Correctable Memory Errors on … Read more
DBA team told me Oracle was running slow on a HPE server. I observed the CPU utilization was about 50% of overall capacity. Whenever Oracle database bumps up the system experienced slowness. Further digged into the issue, I see Oracle workload only ran on single physical processor, but the server has two processors. And the … Read more
You may see following problem if you login vCenter Server 6.0 by vSphere Client: Login to the query service failed. The server could not interpret the communication from the client. (The remote server returned an error: (500) Internal Server Error.) That’s because “Use Windows session credentials” checkbox is selected. Deselect it and give it a … Read more
Just a quick post. When virtual machine cannot get DHCP IP address the first thing you want to check is firewall. Whatever Windows firewall or physical firewall. You should make sure UDP port 67 and 68 are not blocked. Otherwise you will see the virtual machine gets 169.x.x.x IP address only. The two ports is … Read more
