# Rental Management

Once you've successfully rented a GPU on Nebula AI, managing your session effectively ensures **optimal performance, cost-efficiency, and uninterrupted workflow**. This section covers everything you need to know about **monitoring usage, extending rentals, handling early termination, and troubleshooting issues**.

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### **Monitoring Your Active Rentals**

After confirming a rental, you can access your **Rental Dashboard**, which provides **real-time tracking and management tools**. From this interface, you can:

* **View GPU Status** – Check if the rented GPU is **online, in use, or idle**.
* **Monitor Performance Metrics** – Track **VRAM usage, GPU load, power consumption, and network speed**.
* **Check Remaining Rental Time** – See how much time is left before the rental expires.
* **Access Connection Details** – Get SSH login, Jupyter Notebook links, or API credentials.

Keeping an eye on **resource usage** ensures you're not paying for **idle compute time** and helps you **adjust workloads accordingly**.

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### **Extending Your Rental Duration**

If your workload requires **more computing time**, you can **extend the rental before it expires**.

* In the **Rental Dashboard**, locate your active session and select **"Extend Rental"**.
* Choose the additional duration (hourly or long-term options).
* Confirm and approve the transaction in your wallet.

{% hint style="info" %}
If you’re running a critical job (e.g., AI training, batch processing), it’s recommended to extend the rental **before it gets close to expiration** to prevent disruption.
{% endhint %}

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### **Ending a Rental Session Early**

Rentals automatically terminate at the end of the rental period, but you may **end your session manually** if you no longer need the GPU.

* Navigate to the **Rental Dashboard** and select **"End Rental"**.
* Confirm the **termination request**.
* The system will immediately **release the GPU** back to the marketplace.

#### **Important:**

* **No refunds** are given for unused time if you terminate early.
* All **session data is erased upon termination**, so back up your work **before ending the rental**.

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### **Auto-Termination & Data Management**

When a rental reaches its **expiration time**, the GPU is automatically **released and reset**. This means:

* **All session data is deleted** – Ensure you have backups.
* **The GPU is immediately available for other renters**.
* **Pending payments and transactions are settled automatically** via smart contracts.

If you require **persistent storage** across rental sessions, Nebula AI will introduce **cloud-linked storage solutions in a future update**.

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### **Handling GPU Downtime & Failures**

While rare, there may be instances where **your rented GPU goes offline or underperforms**. This could be due to:

* **Host hardware failure**
* **Network connectivity issues**
* **Unexpected driver or software crashes**

If a **GPU failure occurs during an active rental**, the system will:

1. **Automatically detect downtime** and attempt to restore functionality.
2. If the downtime persists, **the session may be credited or refunded** based on the issue.
3. **Support tickets can be opened** if manual intervention is needed.

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### **Troubleshooting Common Issues**

| **Issue**                                  | **Cause**                                         | **Solution**                                                    |
| ------------------------------------------ | ------------------------------------------------- | --------------------------------------------------------------- |
| **GPU not responding after rental starts** | Temporary host delay                              | Wait a few minutes or restart the session                       |
| **Slow performance**                       | High concurrent load or network issue             | Check host GPU specs and connection speed                       |
| **Session disconnected unexpectedly**      | Network instability or host reboot                | Reconnect using new session credentials                         |
| **Cannot extend the rental**               | Insufficient funds or rental period limit reached | Ensure the wallet has enough $NAI or select a shorter extension |
| **GPU unexpectedly terminated**            | Host failure or forced stop                       | Contact support for possible credit/refund                      |

If persistent issues arise, reach out via **Nebula AI support or community channels**.