# 3. Extending disk size for nodes in Kubernetes Cluster on HI GIO Portal

## <mark style="color:green;">**Overview**</mark> <a href="#overview" id="overview"></a>

* Step-by-step guide on how to increase the disk capacity of each node in the cluster to meet growing storage needs.
* No downtime.

## <mark style="color:green;">**Procedure**</mark> <a href="#procedure" id="procedure"></a>

**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**

<figure><img src="/files/2xCOy5IdVta95gcGRPSH" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}
**Step 2:** Enter new disk size >**SAVE**

<figure><img src="/files/JBlvJhucToBnJdSsDyB4" alt=""><figcaption></figcaption></figure>
{% 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`

<figure><img src="/files/cdossWOsddrfxP2aCXbl" alt=""><figcaption></figcaption></figure>

* 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
```

<figure><img src="/files/UUcd4ZLAbwmC9CvISFfO" alt=""><figcaption></figcaption></figure>

* Run command to verify disk size after expansion

<pre><code><strong>fdisk -l
</strong></code></pre>

<figure><img src="/files/GcbHCZNoRwUSL0tihsSZ" alt=""><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}


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