---
title: "Storage Nodes"
description: "Operate the storage nodes of a simplyblock cluster on Kubernetes: request node actions, move a node to another worker, remove it, or replace it."
source: "https://docs.simplyblock.io/latest/kubernetes/operations/storage-nodes/"
---

# Storage Nodes

An operation against a single storage node is requested with a `StorageNodeOps` resource, which names the target
`StorageNode`, carries the action, and is driven to completion by the Simplyblock Operator. Taking a worker out for
maintenance needs no resource at all, since a cordon or a drain is picked up by the operator on its own.

| Topic                                                           | Purpose                                                                                        |
|-----------------------------------------------------------------|------------------------------------------------------------------------------------------------|
| [Storage Node Actions](storage-node-actions.md)                 | The mechanism behind every operation: the target node, the request, the locking, the tracking. |
| [Shutting Down a Storage Node](shutting-down-a-storage-node.md) | Stopping one node, and the conditions that refuse a graceful shutdown.                         |
| [Restarting a Storage Node](restarting-a-storage-node.md)       | Stopping and starting one node, optionally forced and reattaching its volumes.                 |
| [Suspending a Storage Node](suspending-a-storage-node.md)       | Stopping new volumes from being placed on a node that keeps running.                           |
| [Resuming a Storage Node](resuming-a-storage-node.md)           | Returning a suspended node to normal service.                                                  |
| [Replacing a Storage Node](replacing-a-storage-node.md)         | Choosing between a migration and a removal when hardware is replaced.                          |
| [Migrating a Storage Node](migrating-a-storage-node.md)         | Moving a storage node onto a different worker, keeping its identity and devices.               |
| [Removing a Storage Node](removing-a-storage-node.md)           | Draining the volumes off a storage node and taking it out of the cluster.                      |
| [Coordinated Worker Node Drain](node-drain-coordination.md)     | Protecting storage availability while a Kubernetes worker is cordoned or drained.              |