By default, upgrading AMS from 1.0.x to 1.x automatically backs up any existing AMS H2 database to the data directory. The backup process accomplishes this by backing up the database's mv.db and trace.db files and copying them with a timestamp annotation (useful, for example, to preserve a backup or to later downgrade AMS).

You can disable the auto-backup using the ams-server --nobackup command.

The following shows the AMS console output during upgrade. Note: lines below wrap to the next for clarity.

017-02-08 11.55.46.293 INFO  com.tibco.ep.ams.conf.Configuration.84 - 
  AMS configuration file: '/opt/tibco/sb-cep/10.1/ams/conf/AMS.conf'
2017-02-08 11.55.46.347 INFO  com.tibco.ep.ams.conf.Configuration.93 - D
  atabase file path: '/[Your site-specific location]/x/data/ams-h2-persistence'
2017-02-08 11.55.46.348 INFO  com.tibco.ep.ams.conf.Configuration.102 - 
  Authentication realms: [LocalAuthenticationRealm]
2017-02-08 11.55.46.543 INFO  com.tibco.ep.ams.DBMigrationUtil.302 - 
  Making a backup of the existing H2 database files
2017-02-08 11.55.46.548 INFO  com.tibco.ep.ams.DBMigrationUtil.308 -     
  /[Your site-specific location]/x/data/ams-h2-persistence.mv.db -> 
  /[Your site-specific location]/x/data/ams-h2-persistence.mv.db.2017-
  02-08.11.55.46.bak0
2017-02-08 11.55.46.548 INFO  com.tibco.ep.ams.DBMigrationUtil:308 -     
  /[Your site-specific location]/x/data/ams-h2-persistence.trace.db -> 
  /[Your site-specific location]/x/data/ams-h2-persistence.trace.db.2017-
  02-08.11.55.46.bak0
2017-02-08 11.55.46.548 INFO  com.tibco.ep.ams.AMSServer.176 - 
  Running the AMS server
2017-02-08 11.55.46.574 INFO  com.tibco.ep.ams.DBMigrationUtil.150 - 
  Creating migration table, db_migration
2017-02-08 11.55.46.576 INFO  com.tibco.ep.ams.DBMigrationUtil.179 - 
  Writing version 1.0 record to migration table, db_migration
2017-02-08 11.55.46.992 INFO  org.avaje.dbmigration.MigrationRunner.93 - 
  local migrations:1  existing migrations:1
2017-02-08 11.55.50.247 INFO  org.eclipse.jetty.server.ServerConnector.270 - 
  Started ServerConnector@58606c91{HTTP/1.1,[http/1.1]}{0.0.0.0:8080}

Data directory example after the auto-backup completes:

[Your site-specific information]:~/Desktop/x > ls -1 data
ams-h2-persistence.mv.db
ams-h2-persistence.mv.db.2017-02-08.11.55.46.bak0
ams-h2-persistence.trace.db
ams-h2-persistence.trace.db.2017-02-08.11.55.46.bak0