When the ESX server get unexpected restart, it might happen that some of  the VMs has a problem with Power on due to file lock. Failed to power on VM Could not power on VM : Lock was not free. Failed to initialize swap file ‘/volumes/4d8a07c2-b63cce23-a467-d8d385b8f298/vm01/vm01-3473aa90.vswp’ : Lock was not free or other similar error : Failed to power on VM. Could not find swap file. What to do it that case ? Find out which...

In the morning I was trying to remove snapshot from VM using vSphere client, to my surprise, I couldn’t remove it.  An error says: Remove snapshot <VM name> Another task is already  in progress. < domain\user> <virtual machine name> console I tried to stop VM, without success, error this same like above. Second try-out, from command line using vmware-cmd command with removesnpahots syntax, failed with error:...

Over the weekend my fried did migration from NetAPP 3040 to IBM N6060 using SVmotion. After couple of days he found that some of the VMs stop logging to their vmware.log and the last entry in a log was ” Log Throttled ” Jun 01 05:01:56.454: vcpu-2| Ethernet3 MAC Address: 00:50:56:8b:00:96 Jun 01 05:01:56.548: vcpu-2| Ethernet3 MAC Address: 00:50:56:8b:00:96 Jun 01 05:01:56.684: vcpu-2| Ethernet3 MAC Address: 00:50:56:8b:00:96...

After upgrade from vSphere 4.0 to vSphere 4.1 U1 a colleague of mine notice that there are a lot of gaps  in historical performance data.  Problems got started from the date which vCenter was upgraded to newest version. Below part of the vpxd.log from vCenter with error message in vpxd.log – ” SQL execution took too long ” vCenter logs [2011-06-09 11:38:38.234 12452 warning 'App'] [VdbStatement] SQL execution took too...

In case you still have ESX 4.0 in your enterprise and update to U3 failed with following error: DependencyError: Requested VIB rpm_vmware-esx-vmkernel64 conflicts with the host and in /var/log/vmware/esxupdate.log can be found below error message: ERROR:  esxupdate: An esxupdate error exception was caught: Traceback (most recent call last):   File "/usr/sbin/esxupdate", line 242, in ?     cmd.Run()   File...