Enable or Disable Automatic Replacement Recognition (ARR)

You can enable or disable ARR for your entire cluster, or just for specific nodes.

Procedure

To enable or disable ARR for your entire cluster, click Cluster Management > Automatic Replacement Recognition.
In the Settings area, click Disable ARR or Enable ARR.
To disable ARR for a specific node, you must perform the following steps through the command-line interface (CLI).
1. Establish an SSH connection to any node in the cluster.
2. Run the following command:
```
isi devices config modify --automatic-replacement-recognition no --node-lnn <node-lnn>
```
If you don't specify a node LNN, the command will be applied to the entire cluster.
The following example command disables ARR for the node with the LNN of 2:
```
isi devices config modify --automatic-replacement-recognition no --node-lnn 2
```
To enable ARR for a specific node, you must perform the following steps through the command-line interface (CLI).
1. Establish an SSH connection to any node in the cluster.
2. Run the following command:
```
isi devices config modify --automatic-replacement-recognition yes --node-lnn <node-lnn>
```
If you don't specify a node LNN, the command will be applied to the entire cluster.
The following example command enables ARR for the node with the LNN of 2:
```
isi devices config modify --automatic-replacement-recognition yes --node-lnn 2
```