It is an good idea to check backups with the Consistency checker.
The docs on that are at: https://neo4j.com/developer/kb/how-do-i-run-consistency-check-manually/
Basically it comes down to this commandline :
$ java -cp 'lib/*:system/lib/*' org.neo4j.consistency.ConsistencyCheckTool /tmp/graph.db
Error: Could not find or load main class org.neo4j.consistency.ConsistencyCheckTool
After explicitly including the path to Neo4J it works fine;
java -cp 'lib/*:system/lib/*:/usr/share/neo4j/lib/*' org.neo4j.consistency.ConsistencyCheckTool graph.db