Partition almost full

I would check other folders before.

Do the following command so you can understand what folders is in the /var logical volume:

df -h

As you can see /var/log for example, is a different logical volume than /var.

You can delete files in these folders:

/var/core - this folder contains core files generated that can be used for troubleshooting, you can delete if you dont need the files.

/var/local/scf and /var/local/ucs - These folders contains backups files, that you should have already a copy out of the box.

These are normally the reasons for /var full. If they don't have any file there, is better you find out what is causing that as that is not normal.