You can choose to maintain a transaction log mirror when you create a database. This option is available either from the CREATE DATABASE statement, from Sybase Central, or from the dbinit utility.
For more information about why you may want to use a transaction log mirror, see Protecting against media failure on the transaction log.
In Sybase Central, choose Tools > SQL Anywhere 10 > Create Database.
Follow the instructions in the wizard.
Use the CREATE DATABASE statement, with the TRANSACTION LOG and MIRROR clauses. For example:
CREATE DATABASE 'c:\\mydb' TRANSACTION LOG ON mydb.log MIRROR 'd:\\mydb.mlg';
Use the dbinit utility with the -m option. For example, the following command (which should be entered on one line) initializes a database named company.db, with a transaction log kept on a different device and a mirror on a third device.
dbinit -t d:\log-dir\company.log -m e:\mirr-dir\company.mlg c:\db-dir\company.db