Chapter 4. Upgrade Instructions

XenServer or KVM:

SSH in by using the link local IP address of the system VM. For example, in the command below, substitute your own path to the private key used to log in to the system VM and your own link local IP.

Run the following commands on the XenServer or KVM host on which the system VM is present:

#ssh -i /root/.ssh/id_rsa.cloud <link-local-ip> -p 3922

#cat /etc/cloudstack-release

The output should be like the following:

Cloudstack Release 4.2 Mon Aug 12 15:10:04 PST 2013

ESXi

SSH in using the private IP address of the system VM. For example, in the command below, substitute your own path to the private key used to log in to the system VM and your own private IP.

Run the following commands on the Management Server:

#ssh -i /var/cloudstack/management/.ssh/id_rsa <private-ip> -p 3922

#cat /etc/cloudstack-release

The output should be like the following:

Cloudstack Release 4.2 Mon Aug 12 15:10:04 PST 2012

21.(XenServer only) If needed, upgrade all Citrix XenServer hypervisor hosts in your cloud to a version supported by CloudPlatform 4.2 and apply any required hotfixes. Instructions for upgrading and applying hotfixes can be found in Section 4.4, “Upgrading and Hotfixing XenServer Hypervisor Hosts”.

22.(VMware only) If your existing cloud includes any deployed data centers, you should set the global configuration setting vmware.create.full.clone to false. Then restart the Management Server. For information about how to set vmware.create.full.clone, see Section 5.5, “Setting Configuration Parameters”. For information about how CloudPlatform supports full and linked clones, see “Configuring Usage of Linked Clones on VMware” in the CloudPlatform Administration Guide.

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Citrix Systems 4.2 manual XenServer or KVM
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4.2 specifications

Citrix Systems, a leading provider of virtualization solutions and cloud computing technologies, released version 4.2 of its popular software, Citrix XenApp, which was previously known as Presentation Server. This version marked a significant evolution in providing users with remote access to applications and desktops, emphasizing simplicity, performance, and security.

One of the standout features of Citrix XenApp 4.2 is its improved application streaming capabilities. This technology allows applications to be delivered to users in real-time, reducing the need for extensive local installations and enhancing the user experience. With application streaming, administrators can efficiently manage applications on a central server while ensuring that users have immediate access to the necessary tools.

Another highlight of this version is the enhanced security measures put in place to protect sensitive data. Citrix XenApp 4.2 includes support for SSL encryption, providing a secure communication channel for data transmitted between the server and clients. This is particularly crucial for businesses that need to comply with strict data protection regulations. Additionally, the integration of endpoint security features ensures that unauthorized access to applications is minimized.

Performance enhancements are also a critical focus in this release. Citrix optimized the delivery of applications over various network conditions, ensuring that users experience minimal latency regardless of their location. This was achieved through the incorporation of SmartAccess and SmartControl technologies, which allow administrators to set policies based on user roles, device types, and network conditions. This level of granularity enables organization-wide security without compromising on usability.

The user experience was further improved with a revamped interface, making it easier for end-users to access their applications and data. Simplified menus, clear navigation paths, and the ability to customize user settings contributed to a more efficient workflow, allowing users to focus on their tasks rather than struggling with the software.

Finally, Citrix XenApp 4.2 was designed to be highly scalable. Organizations of all sizes could deploy this solution to deliver applications efficiently, adapting to their specific needs as their user base grows or changes. This flexibility is crucial for businesses looking to future-proof their IT investments while maintaining optimal performance.

In summary, Citrix XenApp 4.2 stands out with its enhanced application streaming, robust security features, improved performance under varying conditions, user-friendly interface, and scalability, making it an ideal choice for organizations seeking to leverage virtualization for remote access to applications and desktops.
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