Virtualization And Cloud Computing

 Issue: Unable to add the vCenter endpoint to the usage meter due to certificate error Error: There was a problem checking the certificate vCenter fqdn :443 .Unexpected exception :java.net.UnknownHostException: fqdn of vCenter Actions performed:  1.Checked the root certificate on the vCenter and machine SSL ,SAN names etc 2. Running an openssl command  from Usage meter using the IP address of the vCenter returns the certificate  3. Running and opnessl command from Usage meter using the vCenter FQDN fails to resolve and unable to fetch the vCenter certificate. Resolution : 1.SSH into the Usage Meter appliance using root 2.Took a backup of /etc/hosts file 3.Added the IP address and the FQDN of the vCenter after which vCenter was successfully added to the Usage Meter.

Handy KB articles for recent issues in vROPS How to reset the root password in vRealize Operations How to reset the admin password in vRealize Operations Manager Adding additional storage to a node in vRealize Operations vRealize Operations Manager Sizing Guidelines Configure a Certificate For Use With vRealize Operations /storage/log is full on vRealize Operations Replace expired internal certificate in vRealize Operations Manager 6.3 and later Upgrade to vRealize Operations Manager 8.0 fails due to the admin or root account password Upgrade to vRealize Operations Manager 8.0 hangs on step 4 of 9 Shutdown and Startup sequence for a vRealize Operations Manager cluster Clearing the Alerts and Alarms Tables in vRealize Operations Upgrade to vRealize Operations Manager 8.x fails due to low space on /dev/sda Upgrade to vRealize Operations Manager 8.0 fails due to low space on /dev/sdc Continuous disk space alerts for /storage/archive Guest File System in vRealize Operations Manager Rebooti...

Using Custom Certificates in Usage Meter 4.x As we get to move on with customers and service providers asking to implement to use a secure web browser access to Usage Meter .The old versions of UM has methods to replace the certificates. Beginning from 3.6.1 versions there is no official or supported methods to use a custom certificates for Usage Meter and we are still allowed with default certificates. Recently we are receiving request from customer using their own internal or custom signed certificates for Usage Meter 4.x versions. It still in the road map and i believe it will be taken care in the upcoming versions. I have tested in my lab since the Usage Meter 4.x version uses ngnix web servers so i found a possibility to replace the certificates. Note: Its official not supported and no supported documentation available at this moment  and you have to repeat ever time you upgrade or patch the Usage Meter appliance make sure to take a snapshot or a valid backup befo...