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| Oracle Solaris Cluster System Administration Guide Oracle Solaris Cluster 4.1

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## Repairing a Full `/var` File System

Both Oracle Solaris software and Oracle Solaris Cluster software write error messages to the `/var/adm/messages` file, which over time can fill the `/var` file system. If a cluster node's `/var` file system fills up, Oracle Solaris Cluster might not be able to start on that node at the next boot up. Additionally, you might not be able to log in to the node.

## How to Repair a Full `/var` File System

If a node reports a full `/var` file system and continues to run Oracle Solaris Cluster services, use this procedure to clear the full file system. Refer to Viewing System Messages in Troubleshooting Typical Issues in Oracle Solaris 11.1 for more information.

1. Assume the `root` role on the cluster node with the full `/var` file system.
2. Clear the full file system.

   For example, delete nonessential files that are contained in the file system.

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