Chapter 14. Working With Storage

Note

Because of a limitation in VMware, live migration of storage for a VM is allowed only if the source and target storage pool are accessible to the source host; that is, the host where the VM is running when the live migration operation is requested.

14.4.5.1. Migrating a Data Volume to a New Storage Pool

There are two situations when you might want to migrate a disk:

•Move the disk to new storage, but leave it attached to the same running VM.

•Detach the disk from its current VM, move it to new storage, and attach it to a new VM.

14.4.5.1.1. Migrating Storage For a Running VM

(Supported on XenServer and VMware)

1.Log in to the CloudPlatform UI as a user or admin.

2.In the left navigation bar, click Instances, click the VM name, and click View Volumes.

3.Click the volume you want to migrate.

4.Detach the disk from the VM. See Section 14.4.4, “Detaching and Moving Volumes” but skip the “reattach” step at the end. You will do that after migrating to new storage.

5.

 

Click the Migrate Volume button

and choose the destination from the dropdown list.

6. Watch for the volume status to change to Migrating, then back to Ready.

14.4.5.1.2. Migrating Storage and Attaching to a Different VM

1.Log in to the CloudPlatform UI as a user or admin.

2.Detach the disk from the VM. See Section 14.4.4, “Detaching and Moving Volumes” but skip the “reattach” step at the end. You will do that after migrating to new storage.

3.

 

Click the Migrate Volume button

and choose the destination from the dropdown list.

4.Watch for the volume status to change to Migrating, then back to Ready. You can find the volume by clicking Storage in the left navigation bar. Make sure that Volumes is displayed at the top of the window, in the Select View dropdown.

5.Attach the volume to any desired VM running in the same cluster as the new storage server. See Section 14.4.3, “Attaching a Volume”

14.4.5.2. Migrating a VM Root Volume to a New Storage Pool

(XenServer, VMware) You can live migrate a VM's root disk from one storage pool to another, without stopping the VM first.

(KVM) When migrating the root disk volume, the VM must first be stopped, and users can not access the VM. After migration is complete, the VM can be restarted.

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Citrix Systems 4.2 manual Migrating a Data Volume to a New Storage Pool, Migrating a VM Root Volume to a New Storage Pool
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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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