Checking System Tables to Verify Current Backup of master

If you have backed up the master database since issuing the most recent disk init, create database, or alter database command, then the contents of sysusages, sysdatabases, and sysdevices match your hard copy.

Check the sysusages, sysdatabases, and sysdevices tables in your recovered server against your hard copy. Look especially for these problems:
Note: You must start SAP ASE with trace flag 3608 before you run disk refit. However, make sure you read the Troubleshooting and Error Messages Guide before you start SAP ASE with any trace flag.
Related concepts
Restoring System Tables with disk reinit and disk refit