JEAZ The bump and grind of daily SysAdmin life

16Nov/110

Cannot complete the configuration of the vSphere HA agent on the host. Misconfiguration in the host setup.

Today when adding a host to a cluster in vCenter I received this nearly useless error

Reconfigure vSphere HA host [host] Cannot complete the configuration of the vSphere HA agent on the host. Misconfiguration in the host setup.

vCenter Server hasn't been told the SHA1 SSL thumbprint is verified to be trusted.
Here are the steps to correct the problem

  1. In vSphere Client go to the Administration menu and select "vCenter Server Settings..."
  2. Click the "SSL Settings" tab on the left side
  3. Place a check mark in the "Verified" box for all your hosts you wish to configure for HA
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14Feb/110

Create NAS datastore Error – NFS Setup on ESX 4.1

Trying to mount  an NFS datastore in vCenter I got the following Errors:

vCenter error dialog:

Operation failed, diagnostics report: Unable to complete Sysinfo operation.  Please see the VMkernel log file for more details.

/var/log/vmkernel errors:

NFS: 149: Command: (mount) Server: (10.0.0.10) IP: (10.0.0.10) Path: (/mnt/servers/vmdk/vmdk) Label: (DEV-SERVERS) Options: (None)
WARNING: NFS: 946: MOUNT RPC failed with RPC status 13 (RPC was aborted due to timeout) trying to mount Server (10.0.0.10) Path (/mnt/servers/vmdk/vmdk)
NFS: 160: NFS mount 10.0.0.10:/mnt/servers/vmdk/vmdk failed: Unable to connect to NFS server

This turned out to simply be caused by the filer, in this case OpenFiler, not being able to resolve the hostnames of the ESX hosts. The DNS servers it referenced were returning Data network IPs instead of Storage network IPs, which don't cross-talk in our environment.

The fix was to simply add entries to /etc/hosts on OpenFiler with the correct IPs:

10.0.0.54 esx1 esx1.domain.local 10.0.0.55 esx2 esx2.domain.local 10.0.0.56 esx3 esx3.domain.local
11Feb/113

Web sites hosting the patch definitions and patches cannot be accessed or have no patch data

VMware Update Manager gives the following error:

Download patch definitions
hostname.domain.local
Web sites:
https://hostupdate.vmware.com/software/VUM/PRODUCTION/ind-
ex.xml; hosting the patch definitions and patches cannot be
accessed or have no patch data. Check the Internet connectivity.
DOMAIN\user
hostname.domain.local
2/9/2011 4:31:18 PM
2/9/2011 4:31:18 PM
2/9/2011 4:32:55 PM

Check to make sure you can access that xml file in IE from the vcenter server

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23Jan/110

Cannot create a quiesced snapshot because the create snapshot operation exceeded the time limit for holding off I/O in the frozen virtual machine.

I experienced this problem in my environment because we use Backup Exec. When I deployed VMWare Data Recovery, it uses VSS to quiesce the file system before taking a backup snapshot.

Well, as it it turns out... Backup Exec's Remote Agent also includes a VSS component, and they break each other when a VSS request comes in.

Here is the VMWare article I found, which was MOST useful. It includes links to Symantec's articles on the same issue, and even resolution steps with all caveats documented. Read carefully at the bottom of the Symantec articles, there is good info there.

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1009558

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