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howto-attach-disk-linux.md

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For more information about disks, see About Disks and VHDs for Virtual Machines.

Attach an empty disk

  1. Open Azure CLI 1.0 and connect to your Azure subscription. Make sure you are in Azure Service Management mode (azure config mode asm).

  2. Enter azure vm disk attach-new to create and attach a new disk as shown in the following example. Replace myVM with the name of your Linux Virtual Machine and specify the size of the disk in GB, which is 100GB in this example:

    azure vm disk attach-new myVM 100

  3. After the data disk is created and attached, it's listed in the output of azure vm disk list <virtual-machine-name> as shown in the following example:

    azure vm disk list TestVM

    The output is similar to the following example:

    info:    Executing command vm disk list

* Fetching disk images
* Getting virtual machines
* Getting VM disks
 data:    Lun  Size(GB)  Blob-Name                         OS
 data:    ---  --------  --------------------------------  -----
 data:         30        myVM-2645b8030676c8f8.vhd  Linux
 data:    0    100       myVM-76f7ee1ef0f6dddc.vhd
 info:    vm disk list command OK

Attach an existing disk

Attaching an existing disk requires that you have a .vhd available in a storage account.

  1. Open Azure CLI 1.0 and connect to your Azure subscription. Make sure you are in Azure Service Management mode (azure config mode asm).

  2. Check if the VHD you want to attach is already uploaded to your Azure subscription:

    azure vm disk list

    The output is similar to the following example:

     info:    Executing command vm disk list

* Fetching disk images
 data:    Name                                          OS
 data:    --------------------------------------------  -----
 data:    myTestVhd                                     Linux
 data:    TestVM-ubuntuVMasm-0-201508060029150744  Linux
 data:    TestVM-ubuntuVMasm-0-201508060040530369
 info:    vm disk list command OK

  3. If you don't find the disk that you want to use, you may upload a local VHD to your subscription by using azure vm disk create or azure vm disk upload. An example of disk create would be as in the following example:

    azure vm disk create myVhd .\TempDisk\test.VHD -l "East US" -o Linux

    The output is similar to the following example:

    info:    Executing command vm disk create
+ Retrieving storage accounts
info:    VHD size : 10 GB
info:    Uploading 10485760.5 KB
Requested:100.0% Completed:100.0% Running:   0 Time:   25s Speed:    82 KB/s
info:    Finishing computing MD5 hash, 16% is complete.
info:    https://mystorageaccount.blob.core.windows.net/disks/myVHD.vhd was
uploaded successfully
info:    vm disk create command OK

    You may also use azure vm disk upload to upload a VHD to a specific storage account. Read more about the commands to manage your Azure virtual machine data disks over here.

  4. Now you attach the desired VHD to your virtual machine:

    azure vm disk attach myVM myVhd

    Make sure to replace myVM with the name of your virtual machine, and myVHD with your desired VHD.

  5. You can verify the disk is attached to the virtual machine with azure vm disk list <virtual-machine-name>:

    azure vm disk list myVM

    The output is similar to the following example:

     info:    Executing command vm disk list

* Fetching disk images
* Getting virtual machines
* Getting VM disks
 data:    Lun  Size(GB)  Blob-Name                         OS
 data:    ---  --------  --------------------------------  -----
 data:         30        TestVM-2645b8030676c8f8.vhd  Linux
 data:    1    10        test.VHD
 data:    0    100        TestVM-76f7ee1ef0f6dddc.vhd
 info:    vm disk list command OK

Note

After you add a data disk, you'll need to log on to the virtual machine and initialize the disk so the virtual machine can use the disk for storage (see the following steps for more information on how to do initialize the disk).