> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usenubis.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Manage instances

> Handle day-2 instance operations on Nubis Compute, from health checks to resizing and recovery planning.

## Day-2 operations matter more than the first launch

Once an instance is live, good operations are about consistency: knowing how to reboot safely, resize intentionally, monitor behavior, and recover without improvising under pressure.

## Common instance operations

* Start, stop, reboot, and redeploy when needed
* Resize compute when traffic or workload shape changes
* Review CPU, memory, disk, and network behavior
* Attach or expand disks as data grows
* Manage backups, snapshots, and recovery readiness

## Operating pattern that scales

<Steps>
  <Step title="Monitor real workload behavior">
    Use runtime metrics and application behavior to decide whether the instance is correctly sized.
  </Step>

  <Step title="Treat resizing as a planned change">
    Resize during a maintenance window or low-risk period when the workload is sensitive to interruption.
  </Step>

  <Step title="Keep backup and rollback paths current">
    Make sure your snapshot and restore assumptions are tested before high-risk changes.
  </Step>
</Steps>

## Practical checks during routine management

* Has the workload outgrown the original disk plan?
* Are security rules still aligned with how the app is exposed today?
* Do old instances still exist after deployments or migrations?
* Are backups recent and restorable?