> For the complete documentation index, see [llms.txt](https://ai-docs.fptcloud.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ai-docs.fptcloud.com/fpt-gpu-cloud/gpu-cluster/managed-k8s-with-gpu-virtual-machine/tutorial/hibernation-and-wake-up.md).
# Hibernation and Wake-up
In production environments, clusters typically run 24/7, 365 days a year. However, in environments like development, testing, staging, and demos, scaling down unused Kubernetes resources can help users reduce costs.
However, manual scaling down can be time-consuming, so the hibernate feature was developed to automate this task.
When users utilize the Hibernate feature, resources within the cluster change as follows:
* Worker nodes (instances) are deleted.
* The pod will be in a "pending" state
* The service will remain intact
* State-saving components (such as PVCs) and state within etcd are also preserved.
Wake-up is the opposite of Hibernate and helps restore the cluster to its original state before Hibernate.
In the portal, you can operate the Hibernate and Wake-up functions as follows.
**\* For Hibernate**
**Step 1**: Select **\[Containers] > \[Kubernetes]** from the menu to display the **Kubernetes Management** page.
**Step 2:** Click the Hibernate button to start the process.
**Step 3:** Enter the cluster name to confirm starting the process.
Once the notification appears, the hibernation process begins, and the status on the portal reverts to "*Hibernating (Running)".*
Once the process completes, the cluster status changes to "*Succeeded (Hibernated)*", indicating successful hibernation.
**\* About Wakeup**
For clusters with a status of *"Succeeded (Hibernated)",* users can use the wake-up feature to restore the cluster to its original state.
**Step 1:** Select **\[Containers] > \[Kubernetes]** from the menu to display the **Kubernetes Management** page.
**Step 2:** Click the ***Wakeup*** button to start the process.
**Step 3:** Enter the cluster name to confirm the process.
Once the notification appears, the Hibernate process begins, and the Portal status reverts to *Processing (Running)*.
Once the process completes, the cluster status will revert to "*Success (Running)"*, indicating the cluster wakeup was successful.
**\*Note:**
Before starting the hibernate process, it is recommended to verify that *all pods* within the cluster *are in the Running state* and that other resources (such as svc type LB, ingress, Persistent Volume, secrets, configmaps, etc.) are functioning properly.
If a user adds another deployment while the cluster is in hibernation, all new resources will enter a *Pending* state until the user chooses to wake up the cluster.
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