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The new volume is created:

Attach the new volume

Once the volume has been created it can be attached to an instance.

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1. Login to the virtual machine. 
   

   The VM will now have an additional disk, typically named vd(SOME_LETTER) or sd(SOME_LETTER). We will assume the disk is named vdb, but it may be vdc, vdd, ... if the VM already had additional disks. 

   Check the attached disks by running lsblk , which shows disks (e.g. vda, vdb) and partitions on the disks (vda1, vda2, etc for partitions 1 & 2 on vda).
   

   You should see something like this, showing vdb with no partition:

   Code Block
   $ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS vda 252:0 0 30G 0 disk └─vda1 252:1 0 30G 0 part / vdb 252:16 0 10G 0 disk

2. Create a single partition (number 1, so vdb1) filling the disk, labelled "data-1" here, and format it. You can use  parted  and mkfs.ext4:

   Code Block
   sudo parted --script -- /dev/vdb mklabel gpt sudo parted --script --align optimal -- /dev/vdb mkpart primary ext4 0% 100% sudo mkfs.ext4 -L data-1 /dev/vdb1

   
   

   Info
   You may partition the disk differently and use any other filesystem type. It is recommended to use the same name as the volume for the label (e.g. data-1) of the new filesystem:

   
   

3. To have the disk auto-mounted on start up, add an entry to your VM's /etc/fstab, adapting the label to the name you chose earlier and setting a convenient path (e.g. /mnt/data1 ):

   Code Block
   ​echo "LABEL=data-1 /mnt/data1 ext4 defaults 0 0" | sudo tee -a /etc/fstab > /dev/null

   
   

4. Create the directory where you are mounting your filesystem. Make sure you use the same path as defined in fstab  earlier:

   Code Block
   sudo mkdir /mnt/data1

   
   

5. Mount the file system this first time around and check it's ok. 

   Code Block
   sudo mount -av

   
   

6. (Optional) Reboot the instance. Then verify the the disk was indeed automatically mounted after system reboot:
   
   

   Code Block
   $ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS vda 252:0 0 30G 0 disk └─vda1 252:1 0 30G 0 part / vdb 252:16 0 256G 0 disk └─vdb1 252:17 0 256G 0 part /mnt/data1

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