METHOD AND APPARATUS FOR MAINTAINING AN AMOUNT OF RESERVE SPACE USING VIRTUAL PLACEHOLDERS

A method and apparatus for maintaining an amount of reserve space using virtual placeholders. In one embodiment, a method of using placeholders for log files to maintain an amount of reserve storage space comprises determining a first required log file, wherein the first required log file is to be used to recover a database volume, generating at least one placeholder for representing at least one required log file in a log volume and storing the first required log file and the at least one placeholder in a portion of the log volume, wherein the at least one placeholder is used to control a size of the portion of the log volume.