Create extra disk#

1. List information about all available block devices. ```bash lsblk ``` Output: ``` NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sr0 11:0 1 364K 0 rom vda 252:0 0 60G 0 disk ├─vda1 252:1 0 59.9G 0 part / ├─vda14 252:14 0 4M 0 part └─vda15 252:15 0 106M 0 part /boot/efi vdb 252:16 0 100G 0 disk ```

**vdb** block device is extra disk, without partition.

2. Create partition for **vdb** block device. ```bash parted -s -a optimal /dev/vdb mklabel gpt -- mkpart primary ext4 0% 100% ``` 3. Let's check created partition for **vdb**. ```bash lsblk ``` Output: ``` NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sr0 11:0 1 364K 0 rom vda 252:0 0 60G 0 disk ├─vda1 252:1 0 59.9G 0 part / ├─vda14 252:14 0 4M 0 part └─vda15 252:15 0 106M 0 part /boot/efi vdb 252:16 0 100G 0 disk └─vdb1 252:17 0 100G 0 part ```

**vdb** block device have partition **vdb1** of 100GB storage space.

4. Create filesystem for partition **vdb1** (ext4 for example). ```bash mkfs.ext4 /dev/vdb1 ``` Output: ``` mke2fs 1.45.5 (07-Jan-2020) Discarding device blocks: done Creating filesystem with 26213888 4k blocks and 6553600 inodes Filesystem UUID: 01b6aa01-424d-4e68-86cd-88f028b04252 Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624, 11239424, 20480000, 23887872 Allocating group tables: done Writing inode tables: done Creating journal (131072 blocks): done Writing superblocks and filesystem accounting information: done ``` 5. Let's mount created partition with ext4 filesystem to /mnt for example. ```bash mount /dev/vdb1 /mnt ``` 6. Let's check partition was successfully mounted on /mnt. ```bash df -h ``` Output ``` Filesystem 1K-blocks Used Available Use% Mounted on udev 997880 0 997880 0% /dev tmpfs 203072 760 202312 1% /run /dev/vda1 60782776 3852632 56913760 7% / tmpfs 1015340 0 1015340 0% /dev/shm tmpfs 5120 0 5120 0% /run/lock tmpfs 1015340 0 1015340 0% /sys/fs/cgroup /dev/vda15 106858 5313 101545 5% /boot/efi tmpfs 203068 0 203068 0% /run/user/0 /dev/vdb1 102624184 24 97365000 1% /mnt ```

**vdb1** ext4 partition mounted on /mnt, you can start use it!

7. Please don't forget to add this partition in **/etc/fstab** , is very iportant part for server reboot! ```bash echo "/dev/vdb1 /mnt ext4 defaults 0 0" >> /etc/fstab ```

The **/etc/fstab** file is a system configuration file that contains all available disks, disk partitions and their options. Each file system is described on a separate line.

## to be continued

## VM action in Dashboard 1. Open the instance located under **the Dashboard**. 2. Select the **Storage** section. 3. Select an extra disk size from template (100GB, 500GB or 1000GB) or add the exact disk space you need for the upgrade. 4. Click **Upgrade**.

In this case, we need to upgrade the 100 GB of storage to 200 GB; add 100GB more.

## Let's check partition size for **vdb** ```bash lsblk ``` Output: ``` NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sr0 11:0 1 364K 0 rom vda 252:0 0 60G 0 disk ├─vda1 252:1 0 59.9G 0 part / ├─vda14 252:14 0 4M 0 part └─vda15 252:15 0 106M 0 part /boot/efi vdb 252:16 0 200G 0 disk └─vdb1 252:17 0 100G 0 part ```

Block device now has a 200GB size, but vdb1 partition only has a 100GB size. Now, we can continue to the next steps.

## Resize existing partition from vdb block device and filesystem. 1. Grow partition 1 for blockdevice **vdb**. ```bash growpart /dev/vdb 1 ``` 2. Resize filesystem for **vdb1** partition. ```bash resize2fs /dev/vdb1 ``` ## Let's check again partition size for vdb ```bash lsblk ``` Output: ``` NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sr0 11:0 1 364K 0 rom vda 252:0 0 60G 0 disk ├─vda1 252:1 0 59.9G 0 part / ├─vda14 252:14 0 4M 0 part └─vda15 252:15 0 106M 0 part /boot/efi vdb 252:16 0 200G 0 disk └─vdb1 252:17 0 200G 0 part ``` Now your Virtual Machine's additional drive has been upgraded from 100GB to 200GB!

## to be continued