# Adding a Disk and Partitioning It
If the `df` command shows that the file system is indeed nearing capacity, you can add a new disk on the fly and partition it to increase capacity.
1. Add a new disk.
For example, you can add a new disk to a virtual machine by using the VMware vSphere Client. After adding a new disk, check for the new disk by using `fdisk`. In the following example, the new disk is named `/dev/sdb`:
fdisk -l
Device Start End Sectors Size Type
/dev/sda1 2048 16771071 16769024 8G Linux filesystem
/dev/sda2 16771072 16777182 6111 3M BIOS boot
Disk /dev/sdb: 1 GiB, 1073741824 bytes, 2097152 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
1. Partition it with the `parted` wizard.
The command to partition the disk on Photon OS is as follows:
parted /dev/sdb
Use the `parted` wizard to create it as follows:
mklabel gpt
mkpart ext3 1 1024
1. Create a file system on the partition:
mkfs -t ext3 /dev/sdb1
1. Make a directory where you will mount the new file system:
mkdir /newdata
1. Open `/etc/fstab` and add the new file system with the options that you require:
```
#system mnt-pt type options dump fsck
/dev/sda1 / ext4 defaults,barrier,noatime,noacl,data=ord$
/dev/cdrom /mnt/cdrom iso9660 ro,noauto 0 0
/dev/sdb1 /newdata ext3 defaults 0 0
```
1. Mount it using the following command:
`mount /newdata`
Verify the results:
```
df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 7.8G 4.4G 3.1G 59% /
devtmpfs 172M 0 172M 0% /dev
tmpfs 173M 0 173M 0% /dev/shm
tmpfs 173M 664K 172M 1% /run
tmpfs 173M 0 173M 0% /sys/fs/cgroup
tmpfs 173M 36K 173M 1% /tmp
tmpfs 35M 0 35M 0% /run/user/0
/dev/sdb1 945M 1.3M 895M 1% /newdata
```