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April 09, 2010

Updated NetApp Best Practices Guide on File System Alignment for Virtual Environments

Posted by Abhinav Joshi – Reference Architect (Server and Desktop Virtualization)

I am happy to share that the updated version of NetApp Technical Report (TR-3747) is now available. This technical report provides best practices for File System Alignment for VMware, Hyper-V, and Citrix XenServer environments.

3747_v3

In this version, we have added 8 pages of new content that provides step-by-step guidance on how to properly align new Linux VM templates. Also included are the alignment best practices when adding new disks to Linux VMs to be used in either a LVM or non-LVM scenario.

File system misalignment is a known issue in all virtual environments and can cause performance issues for VMs. This best practice guide provides an overview of the storage layers in a virtualized environment, provides details on the proper alignment of guest file systems, and describes the performance impact misalignment can have on the virtual infrastructure. It also provides guidance on how the issue can be prevented by following proper steps when provisioning storage for the VM.

I hope you will find this new content useful as you deploy Linux VMs. As always, feedback is highly appreciated.

Follow me on Twitter, @abhinav_josh

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