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You may see “The IP address to reach the server is not set” when clicking the KVM console in Cisco UCS Manager. The issue persists even Cisco UCS Manager has enough IP addresses for management. Re-acknowledge or reset CIMC cannot fix the problem. The fix procedure is go to “Equipment” -> Select the server ->…
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In recent LAB environment reviewing, I noticed my LAB ESXi hosts allow connections from all IP address for NTP services. This is not the best practices for the solid environment. I want to specify certain IP addresses are allowed in case of vulnerabilities in NTP services. There are a lot of blogs talking about how…
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If you are still using Windows 2008 for vCenter Server. You may see ESXi hosts lost connection back and forth on vCenter Server after recent Windows pathing. It’s not something like a heartbeat lost for a few seconds. ESXi can takes minutes to back online. You can see similar logs in vpxd.log: 2018-08-03T09:24:23.337-04:00 error vpxd[20160]…
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Disk Interface IDE (ATA): Bandwidth is 133 Mbps. IOPS is ~100. The interface can connect maximum 2 disks. SCSI: IOPS is ~ 150. It can connects 8 or 16 disks Ultrascsi320 – 320 MB/s Ultrascsi640 – 640 MB/s SATA: Bandwidth is 6 Gbps. IOPS is ~150. It can connects to 8 or 16 disks. SAS:…
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Sometimes you may see vROPs web UI hang, keep on “Loading”, or no responding to any click. It because you are using vRealize Operations Manager 6.6 or earlier version, and your computer is touch screen. There are two ways to fix that: Disable touch screen hardware in Device Manager. The device name usually is “HID-compliant touch…
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Regular Expression also calls Regexp. There are two classes regular expressions: Basic Regexp (BRE) and Extended Regexp (ERE). Regexp should be put in double quotation marks. It can be categorized to: Strings . – Can be any character. Sample: #cat /etc/fstab | grep “U..D” It returns the lines contains U, D and whatever 2 characters between its.…
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When you install vSphere Client 5.x on Windows 10 computer. You may see “Enable .net 3.5 failed” message. And when you try to enable .Net 3.5 on Windows 10 manually, it shows error code 0x800f081f. This issue occures on internet blocked or policy restricted computer. The only way to avoid that is use command line…
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Older UCS Manager uses Java application. The UI fonts could be extremely small on high DPI screen. The fix is: Go to “C:Program Files (x86)Javajre1.8.0_171bin“. Go to “Properties” of “jp2launcher.exe“. “Compatibility” tab -> “Change high DPI settings“. Check “Override high DPI scaling behavior….“. Select “System (Enhanced)” or “System“.
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网上有很多关于如何在VMware Workstation上部署vCenter Server VCSA的文章，但根据这些文章在部署过程中总是会遇到各种各样。以下是几点我总结出来的要点，仅供参考。 我假设你的实验环境里没有DNS或者域服务器，只是简单的使用VMware Workstation的DHCP服务，虚拟机的网卡选择的是“host-only”。以下步骤仅用于做一些快速测试时使用。 vCenter Server安装好后第一次启动的时候会检测FQDN。如果你没有DNS服务器，FQDN检测会失败。所以在安装vCenter Server时要确保“Host Network Identity”输入的是IP地址。 OVA文件导入后虚拟机会立刻自动启动，有时候虚拟机的网卡可能会是断开状态的。要确保网卡是连接状态。 第一次启动耗时大约15至20分钟，在没有完全启动完毕前虚拟机的控制台界面是不现实IP地址的。另外一个vCenter Server准备就绪的表现是IP地址ping得通了。 vCenter Server第一次启动后，需要打开 https://vcenter_ip:5480 继续完成vCenter Server的配置。 Administrator@vsphere.local 的密码就是你在OVA导入界面里输入的密码。 2018 5月28日更新： 在以上步骤的第四步中，你可能无法登陆root，提示验证失败。这是由于root锁死造成的，需要按照以下步骤解锁： 重启vCenter Server虚拟机。 在Photon启动界面按“e”键。 在第二行结尾加入”rw init=/bin/bash“。具体参考这里。 当你看到#提示符时，运行命令”passwd“更改root密码。 运行命令”pam_tally2 –user root“检查root密码输入错了多少次。 如果输入错误次数大于1，运行命令 “pam_tally2 –user root –reset” 解锁root账号。 重启虚拟机，现在应该可以登录了。 2018 5月31日更新： 在以上步骤的第四步中，登陆后你应该会看到vCenter Server安装向导。如果你的vCenter Server只想用IP地址，请确保“System name”项填写的是IP地址。
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There are a lot of articles introduce how to deploy vCenter Server virtual appliance on VMware Workstation. I tried but somehow it’s failed. Following are some notes for your reference if you want to deploy vCenter Server virtual appliance on VMware Workstation real quick. I assume you don’t have DNS or domain servers. Native DHCP…