# 3. Extending disk size for nodes in Kubernetes Cluster on HI GIO Portal
## **Overview**
* Step-by-step guide on how to increase the disk capacity of each node in the cluster to meet growing storage needs.
* No downtime.
## **Procedure**
**I. Pre-requisites:**
* Make sure oVDC has an available storage quota.
* Make sure you can access the node (ssh, node-shell…)
**II. Procedure:**
{% stepper %}
{% step %}
**Step 1:** Log in to HI GIO portal > Virtual Machines > Select the node you want to extend disk size > **Hard Disks** > **EDIT**
{% endstep %}
{% step %}
**Step 2:** Enter new disk size >**SAVE**
{% endstep %}
{% step %}
**Step 3:** SSH to the node and run the commands below to expand the disk on the OS.
* Check root mount point:
```
df -h
```
eg. `/dev/sda4`
* Run the commands below to extend the capacity for `/dev/sda4`
```
echo 1 > /sys/block/sda/device/rescan
growpart /dev/sda 4
resize2fs /dev/sda4
```
* Run command to verify disk size after expansion
