# Architecture diagrams
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This guide covers two architectures for SAP cluster solutions on RHEL for SAP – simple-mount and classic (previous standard). See the following images to learn more.

**Topics**
+ [Pacemaker - simple-mount architecture](#simple-mount-diagram-nw-rhel)
+ [Pacemaker - classic architecture](#classic-diagram-nw-rhel)

## Pacemaker - simple-mount architecture
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See the following image for more details.

![Simple Mount Achitecture](http://docs.amazonaws.cn/en_us/sap/latest/sap-netweaver/images/image-pacemaker-nw-rhel-simplemount.png)


## Pacemaker - classic architecture
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See the following image for more details.

![Classic Architecture.](http://docs.amazonaws.cn/en_us/sap/latest/sap-netweaver/images/image-pacemaker-nw-rhel-classic.png)