The Backup Directory
Backups are saved to the default directory data-backup, unless otherwise configured in the tc-config.xml. Terracotta automatically creates data-backup in the directory containing the Terracotta server's configuration file (tc-config.xml by default).
You can override the default directory by specifying a different backup directory in the server's configuration file using the <data-backup> property:
<servers>
<server name="Server1">
<data>/opt/terracotta/server1-data</data>
<data-backup>path/to/my/backup/directory</data-backup>
<offheap>
<enabled>true</enabled>
<maxDataSize>2g</maxDataSize>
</offheap>
</server>
<restartable enabled="true"/>
</servers>