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Do you know ESXTOP Replay Mode?
Last week, at the VMUG meeting in Vienna, a Technical Account Manager (TAM) from VMware mentioned the “ESXTOP Replay Mode” while talking about troubleshooting tools. Since I was not familiar with this...
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ESXTOP VAAI counters
While working on the vSphere 6 ESXTOP quick Overview for Troubleshooting poster, I came across the VAAI counters that are available with ESXTOP. Finally I did not include them to the poster, because I...
View ArticleESXi Host vmkernel.log contains Warning: CBT Unsupported ioctl
You find entries in the vmkernel.log file of your ESXi hosts with the following warnings (or similar)? Warning: CBT: 986: Unsupported ioctl 43 Warning: CBT: 2060: Unsupported ioctl 58 Unsupported ioctl...
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esxupdate error code 10 (tmp directory full due to mili2d.log)
You notice the following error pattern: Error message when patching an ESXi host: The host returns esxupdate error code: 10. Cannot create, write or read a file as expected. Check the Update Manager...
View ArticleWhat happens when the ESXi boot device (SD card or USB device) fails?
Have you ever asked yourself what happens when the USB device / SD card where you have installed ESXi fails? The good news is: nothing (in the short run) ESXi is loaded into memory while booting – so...
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How to uninstall HDLM of your ESXi Hosts
Just a short post how you can uninstall Hitachi Dynamic Link Manager (HDLM) of your ESXi Hosts… If possible, I would prefer a fresh installation of ESXi instead of an uninstall. But if it is necessary...
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Webclient: permission errors after upgrading or installing vCenter 6.0
After installing or upgrading VMware vCenter 6.0 you experience permission errors like the following when using the webclient: You do not have permissions to view this object or this object does not...
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IBM TSM reports “XXX com.ibm.tsm.tasks” errors after upgrade from vCenter 5.5...
After an upgrade of your VMware vCenter Server from version 5.5 to 6.0 the following errors are reported when you try to backup or restore a virtual machine with TSM for Virtual Environments: XXX...
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vCenter Server 6.0 Hardware Status: No host data available
After the upgrade to VMware vCenter Server 6.0 I noticed, that the hardware status tab displays “No host data available”: I found a KB article about this (known) issue. Unfortunately there is only a...
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How to execute QueryChangedDiskAreas using MOB
If you are not used to working with the vSphere Managed Object Browser (MOB) it can be a little bit tricky to execute the QueryChangedDiskAreas. Here is a step-by-step guide: create a snapshot of the...
View ArticleESXi Host vmkernel.log contains Warning: CBT Unsupported ioctl
You find entries in the vmkernel.log file of your ESXi hosts with the following warnings (or similar)? Warning: CBT: 986: Unsupported ioctl 43 Warning: CBT: 2060: Unsupported ioctl 58 Unsupported ioctl...
View ArticleClik here to view.
Do you know ESXTOP Replay Mode?
Last week, at the VMUG meeting in Vienna, a Technical Account Manager (TAM) from VMware mentioned the “ESXTOP Replay Mode” while talking about troubleshooting tools. Since I was not familiar with this...
View ArticleClik here to view.
esxupdate error code 10 (tmp directory full due to mili2d.log)
You notice the following error pattern: Error message when patching an ESXi host: The host returns esxupdate error code: 10. Cannot create, write or read a file as expected. Check the Update Manager...
View ArticleClik here to view.
How to uninstall HDLM of your ESXi Hosts
Just a short post how you can uninstall Hitachi Dynamic Link Manager (HDLM) of your ESXi Hosts… If possible, I would prefer a fresh installation of ESXi instead of an uninstall. But if it is necessary...
View ArticleClik here to view.
Webclient: permission errors after upgrading or installing vCenter 6.0
After installing or upgrading VMware vCenter 6.0 you experience permission errors like the following when using the webclient: You do not have permissions to view this object or this object does not...
View ArticleClik here to view.
IBM TSM reports “XXX com.ibm.tsm.tasks” errors after upgrade from vCenter 5.5...
After an upgrade of your VMware vCenter Server from version 5.5 to 6.0 the following errors are reported when you try to backup or restore a virtual machine with TSM for Virtual Environments: XXX...
View ArticleClik here to view.
vCenter Server 6.0 Hardware Status: No host data available
After the upgrade to VMware vCenter Server 6.0 I noticed, that the hardware status tab displays “No host data available”: I found a KB article about this (known) issue. Unfortunately there is only a...
View ArticleClik here to view.
How to enable the Managed Object Browser (MOB) for ESXi 6.0 Hosts
In the course of investigations for a support request I tried to connect to the Managed Object Browser (MOB) of an ESXi 6 Host as I am used to from ESXi 5.x Hosts. I opened a browser to...
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Take care – Express Patch 6 for ESXi 6 can break your Backup (CBT Bug)!
Just a short notice if you are already on ESXi 6: There is an issue with Change Block Tracking (CBT) in Express Patch 6 for ESXi 6 (Build 3825889) that can affect your backup if your backup software...
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How to – rollback/revert to a previous ESXi version
If you have to rollback/revert your ESXi host to a previous version, just perform the following steps: connect to the console of your ESXi host (eg. using ILO,…) reboot the ESXi host when ESXi starts...
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