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CloudStack XenServer

Changing XenServer Host Passwords In CloudStack

Most of us have a business requirement to change system passwords regularly and when we do, it usually ends up in a mess. Thankfully, Apache CloudStack has an API that allows you to modify XenServer host passwords without mucking around the database and encryption. The API to change XenServer host password is updateHostPassword which you […]

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CentOS CloudStack

CloudStack Usage Server Fails To Start

On a freshly installed Apache CloudStack 4.3.0 installation, the cloudstack-usage server fails to start as below: This is probably a side effect of newer version of OpenJDK being released for CentOS via EPEL which /etc/init.d/cloudstack-usage start script does not know about. The right location for java-1.7.0-openjdk JAVA_HOME is /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.55.x86_64 and and is easily fixed with […]

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CloudStack XenServer

CloudStack SSVM Network Topology with XenServer

For those trying to debug SSVM networking, the following screenshots should help narrow down the issue. These screenshots are from a Apache CloudStack 4.3.0 environment with XenServer hypervisor hosts. Each XenServer hosts has 4 physical network interfaces labeled as below: NIC0 – MGMT NIC1 – STORAGE (NOTE: Storage is unused in my setup) NIC2 – […]