Change the Temporary Drive in a Azure VM and Use D: for Persistent Data Disks

Quite often people want to use the D: drive in a Windows Azure VM for their apps or data. For example, you might want to migrate an existing Windows application to the cloud without change and this app is relying on data being stored on the D: drive. Or your corporate policy mandates installing applications on D:.

By default, Windows VMs in Windows Azure host their operating system on drive C: as a persistent data disk located in blob storage. Additionally, each VM gets a scratch disk labeled as D: which is NOT persisted in blob storage. It’s rather disk space provided by the specific Hyper-V host of your VM. Data on this scratch disk is volatile in a sense that it will get lost whenever your VM will be relocated to another physical host (e.g. because you changed the VM size in the portal).

So if you want to use D: as a persistent data disk, read on…

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Migrate your VMware VM to Windows Azure in 30 Minutes

You are running your virtualized workloads on top of VMware? You’ve heard about Windows Azure and believe it could be a valuable alternative or extension to your current IT landscape? Check out how you can migrate VMware Windows Server Guest VMs directly to Windows Azure in only a couple of steps using the Microsoft Virtual Machine Converter.

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