> For the complete documentation index, see [llms.txt](https://docs.weka.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.weka.io/4.1/additional-protocols/nfs-support/supported-nfs-client-mount-options.md).

# Supported NFS client mount options

### Non-coherent mount options

* `ac`
* `async`
* `noatime`
* `lookupcache=all`

### Coherent mount options

* `noac`
* `sync`
* `atime`
* `lookupcache=none`

### Common mount options

{% hint style="info" %}
You can change the following mount options. These values are commonly used with the WEKA system.
{% endhint %}

* `rw`
* `hard`
* `rsize=524288`
* `wsize=524288`
* `namlen=255`
* `timeo=600`
* `retrans=2`
* `nconnect=1` (only supported in NFS-W) 

### Fixed-mount options

{% hint style="danger" %}
**Note:** Set these values on the mount command because different values are not supported.
{% endhint %}

* `nolock`

{% hint style="info" %}
**Note:** The following options must have fixed values, but usually are either the NFS mount defaults or are negotiated to these values by the protocol.
{% endhint %}

* `sec=sys`
* `proto=tcp`
* `mountproto=tcp`


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.weka.io/4.1/additional-protocols/nfs-support/supported-nfs-client-mount-options.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.